JP3409440B2 - Electrode wire for wire electric discharge machining - Google Patents

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a wire electric discharge machining electrode wire, and more particularly to a wire electric discharge machining electrode having excellent characteristics such as an improved electric discharge machining speed and a small adhesion amount to a workpiece. Regarding the line.

[0002]

2. Description of the Related Art Wire electric discharge machining is performed between a workpiece and a linear machining electrode (referred to as a wire electric discharge machining electrode wire).
Melt and cut the work piece into the desired shape by moving the work piece relative to the electrode wire for wire electric discharge machining while intermittently generating an electric discharge through a working liquid such as water or oil. Is the way to do it.

Generally, in wire electric discharge machining, the following electric discharge machining characteristics are required.

(1) It is required that the work piece has good finishing accuracy, working accuracy, and finished surface condition.

(2) It is required that the scattered matter from the wire electric discharge machining electrode wire does not adhere to the workpiece.

(3) Short electrical discharge machining time is required. (4) It is required that the electrode wire for wire electric discharge machining is unlikely to break during wire electric discharge machining.

(5) When wire electric discharge machining is performed, even if the wire electric discharge machining electrode wire is broken, it is required that the automatic wire connection property is good.

The following characteristics are required for the material of the electrode wire for wire electric discharge machining.

(6) When manufacturing an electrode wire for wire electric discharge machining, more specifically, in the step of forming a wire rod, the material is required to have high wire drawing characteristics.

Heretofore, brass has been exclusively used as the material of the electrode wire for wire electric discharge machining. This is because brass is relatively excellent in wire drawing workability, and it is relatively easy to manufacture a wire electric discharge machining electrode wire. This is because the tensile strength is relatively high during processing.

It has been empirically known that, in a wire electric discharge machining electrode wire made of brass, the higher the content of Zn, the higher the electric discharge machining speed. High content, 7/3 brass wire, 6
5/35 brass wire and 63/37 brass wire are mainly used. Although it is expected that the electrical discharge machining speed will be improved by further increasing the Zn content, brass (Cu-Zn alloy) having a Zn content of more than 40% by weight has poor wire drawing characteristics,
When manufacturing the electrode wire for wire electric discharge machining, the number of times of annealing has to be increased, which causes a problem that the manufacturing cost of the electrode wire for wire electric discharge machining becomes high. More specifically, brass having a Zn content of more than 40% by weight (Cu-Z
There is a problem in that it is very difficult to draw an n-alloy) into a wire having a diameter of about 0.2 mm (electrode wire for wire electric discharge machining).

Currently used exclusively 65/35
Brass wire is inferior in electrical discharge machining speed, has a large amount of adhesion to the work piece, and lacks high-temperature strength.Therefore, the load tension of the electrical discharge machining electrode wire is increased and it is easy to break when electrical discharge machining is performed. There is a problem.

As a technique for solving such a problem, brass, Al, Si, or Al and Si are added as an additive element.
Various electrode lines for wire electric discharge machining to which is added have been proposed.

For example, JP-A-57-41134 discloses that Zn is contained in an amount of 5% by weight or more and 40% by weight or less and Al as an additive element in an amount of 0.1% by weight or more and 4% by weight or less, with the balance being An electrode wire for wire electric discharge machining made of Cu is disclosed.

Also, for example, Japanese Patent Laid-Open No. 59-22547.
In the gazette, Zn is 20% by weight or more and 40% by weight or less,
There is disclosed an electrode wire for wire electric discharge machining, which contains 0.1% by weight or more and 5% by weight or less of Si as an additional element and the balance is Cu.

Further, for example, Japanese Patent Laid-Open No. 59-19639.
In the gazette, Zn is contained in an amount of 26% by weight or more and 38% by weight or less,
Al is 0.2 wt% or more and 1.5 wt% as an additional element.
An electrode wire for wire electric discharge machining containing the following and 0.2 wt% or more and 1.0 wt% or less of Si and the balance being Cu is disclosed.

Further, for example, JP-A-63-20752
No. 3 discloses that Zn is 25 wt% or more and 40 wt% or less, Al is 0.5 wt% or more and 2.0 wt% or less, and Si is 0.01 wt% or more and 0.19 wt% or less as additional elements. %
There is disclosed an electrode wire for wire electric discharge machining, which comprises:

The above-mentioned JP-A-59-41134, JP-A-59-22547, and JP-A-59-19.
The electrode wire for wire electric discharge machining disclosed in Japanese Patent Application Laid-Open No. 039 or Japanese Patent Application Laid-Open No. 63-207523 is Zn
Al as an additive element without increasing the content of
By adding Si and / or Si, it is possible to prevent the deterioration of the wire drawing characteristics when manufacturing the electrode wire for wire electric discharge machining, and to improve the processing speed during wire electric discharge machining.

Further, in JP-A-56-90943, Zn is contained in an amount of 1% by weight or more and 40% by weight or less, and Mn and M are added.
g, one or more of rare earth elements are contained so as to satisfy the range of 0.1% by weight or more and 3% by weight or less as the total of additional elements, and the balance is Cu and inevitable impurities. An electrode wire for wire electric discharge machining is disclosed.

Also in the electrode wire for wire electric discharge machining described in JP-A-56-90943, at least one of Mn, Mg and / or a rare earth element is added as an additive element without increasing the Zn content. By doing so, it is possible to prevent the deterioration of the wire drawing characteristics during the production of the wire electric discharge machining electrode wire and to improve the machining speed during the wire electric discharge machining.

Further, the inventors of the present invention disclosed in Japanese Patent Laid-Open No. 5-2954 / 1993.
Japanese Patent Laid-Open No. 72-72 discloses a wire electric discharge machining electrode wire containing Zn in an amount of 0.1 wt% to 45 wt% and Ni in an amount of 0.1 wt% to 50 wt% with the balance being Cu. ing.

According to the present invention, by adding Ni,
It is intended to improve the electric discharge machining characteristics and the like.

[0023]

As described above, the conventional wire electric discharge machining electrode wire made of brass such as 65/35 brass wire has a problem that the electric discharge machining speed during wire electric discharge machining is not sufficient. It was

In order to improve the electric discharge machining speed,
The wire electric discharge machining electrode wire made of brass (Cu-Zn alloy) whose Zn content is simply increased has a problem that the electric discharge machining speed is not sufficiently improved. There has been a problem that the wire drawing properties during manufacturing are significantly deteriorated.

In addition to the above-mentioned brass, Al, Si, A
The electric discharge machining electrode wire in which 1 and Si or Ni are added, or the electric wire machining wire in which Mn, Mg, or a rare earth element is added to brass has a certain degree of electric discharge machinability compared to the brass wire. However, it cannot be said that the electrical discharge machining characteristics are sufficiently satisfied.

That is, recently, with the improvement of the machining power source of the wire electric discharge machine, a wire electric discharge machine capable of applying a high-voltage and short-time pulse voltage as a machining power source has been developed. .

However, all of the above-mentioned conventional wire electric discharge machining electrode wires have a problem that a sufficiently high electric discharge machining speed cannot be obtained.

In addition to the above-mentioned brass, Al, Si, A
Compared with brass wire, wire electric discharge machining electrode wire in which 1 and Si or Ni is added, or wire electric discharge machining electrode wire in which Mn, Mg, or a rare earth element is added to brass are used during wire electric discharge machining. Although the problem of wire breakage of the machining electrode wire is solved to some extent, it may still break, and if such wire breakage occurs in the wire electric discharge machining electrode wire, automatic wire connection is still insufficient. There was a problem.

Further, as the material of the electrode wire for wire electric discharge machining, the above-mentioned brass is added with Al, Si, and
To the material which added Al and Si or Ni, or brass,
Using Mn, Mg, or a rare earth element-added material as an additive element, compared to brass, a certain degree of improvement in wire drawing characteristics was observed during the production of electrode wire for wire electrical discharge machining, especially in the wire drawing process. However, in the wire drawing process, wire breakage is likely to occur, and therefore, the number of times of annealing must be increased in the wire drawing process, and the increase in such processes increases the manufacturing cost of the wire electric discharge machining electrode wire. There is a problem that the problem of becoming is not fully solved.

As described above, in the field of wire electric discharge machining technology, there is no limit to the demand for reducing the machining cost by shortening the electric discharge machining time and the demand for reducing the manufacturing cost of the electrode wire for wire electric discharge machining. There has been a long-felt demand for an electrode wire for wire electric discharge machining which has more excellent electric discharge machining characteristics and is inexpensive.

The present invention has been made in order to solve the above problems, and improves the electric discharge machining speed, has a small amount of deposits on a workpiece, and has a high temperature strength electrode for wire electric discharge machining. An object of the present invention is to provide a wire electric discharge machining electrode wire made of a material that exhibits excellent wire drawing characteristics when manufacturing the wire electric discharge machining electrode wire.

[0032]

Means for Solving the Problems For many years, the inventors of the present invention have continued research on materials for electrode wires for wire electric discharge machining which have both excellent electric discharge machining characteristics and superior wire drawing characteristics. .

More specifically, the present inventors have found that the element contributing to the improvement of the electric discharge machining characteristics and the wire drawing characteristics is A
It is thought that the elements are not limited to 1, Si, Ni, Mn, Mg, and rare earth elements, and the additive elements to be added to brass have been screened based on the following criteria.

(1) It is an element that contributes to the improvement of electric discharge machining characteristics and the improvement of wire drawing characteristics.

(2) An element with low toxicity. According to this standard, beryllium (Be), which is highly toxic, is excluded.

(3) A material that easily forms an alloy.
According to this standard, calcium (Ca) and the like, which are hard to form an alloy, are excluded.

As a result, brass, B, In, Ge, S
The inventors have found that the addition of n, Ti, Fe, P or Sb can improve the electric discharge machining characteristics and the wire drawing characteristics, and have completed the first invention.

That is, the electrode wire for wire electric discharge machining according to the first invention contains Zn in an amount of 34% by weight or more and 50% by weight or less, and B, In, Ge, Sn, Ti, F as additive elements.
At least one element selected from the group consisting of e, P, and Sb is contained so as to satisfy the range of 0.005% by weight or more and 5.00% by weight or less as the total of additional elements,
Cu-Zn system, Cu-Fe system, Fe-Zn system, and C
It further contains at least one u-Fe-Zn-based intermetallic compound , and the balance thereof is Cu and unavoidable impurities.

The electrode wire for wire electric discharge machining according to the first invention is preferably characterized in that the additive element is Fe.

The inventors of the present invention further added B, In, Ge, Sn, Ti, M to a material obtained by adding Al to brass.
It has been found that the addition of n, Fe, Ni, Mg, P or Sb makes it possible to improve the electric discharge machining characteristics and the wire drawing characteristics as compared with a material in which only Al is added to brass.
The second invention has been completed.

That is, the electrode wire for wire electric discharge machining according to the second invention comprises Zn in an amount of 34 wt% to 50 wt% and Al in an amount of 0.01 wt% to 1.0 wt%.
B, In, Ge, Sn, Ti, Mn, Fe, Ni, M
0.005 wt% or more and 4.0 wt% or less of at least one element selected from the group consisting of g, P, and Sb,
Cu-Zn is contained so as to satisfy the range of 0.05% by weight or more and 5.00% by weight or less as a total of additional elements.
System, Cu-Fe system, Fe-Zn system, Cu-Fe-Zn
-Based, Ti-Ni-based, and Al-Ni-based intermetallic compounds
Of at least one of the above , with the balance being Cu and inevitable impurities.

In the electrode wire for wire electric discharge machining according to the second invention, preferably, the additive elements other than Al are B, In and
It is characterized by being composed of Fe, Ni, Mg, P, and Sb.

More preferably, B is 0.005% by weight.
Or more and 1.0 wt% or less, and In is 0.005 wt%
1.0 wt% or less, Fe is 0.005 wt%
Or more and 0.5 wt% or less, Ni is 0.01 wt% or more and 0.5 wt% or less, Mg is 0.01 wt% or more and 4.0 wt% or less, and P is 0.005 wt% % Or more and 0.5 wt% or less, and Sb is 0.01 wt% or more and 1.0 wt% or less.

Further, the wire electric discharge machining electrode wire according to the second invention is preferably characterized in that the additive element other than Al is constituted by Mg.

More preferably, Mg is 0.01% by weight.
It is characterized in that it is at least 4.0% by weight.

The electrode wire for wire electric discharge machining according to the second invention is preferably characterized in that the additive element other than Al is composed of Fe.

More preferably, Fe is 0.005% by weight or more and 0.5% by weight or less.

Further, the inventors of the present invention have further added B, In, Ge, Sn, Ti,
If Mn, Fe, Ni, Mg, P or Sb is added,
The inventors have found that the electric discharge machining characteristics and the wire drawing characteristics can be improved as compared with a material in which Si is added to brass, and have completed the third invention.

That is, in the electrode wire for wire electric discharge machining according to the third invention, Zn is 34 wt% or more and 50 wt% or less, and Si is 0.01 wt% or more and 1.0 wt% or more as an additive element.
%, B, In, Ge, Sn, Ti, Mn, F
At least one element selected from the group consisting of e, Ni, Mg, P, and Sb is 0.005% by weight or more and 4.0% by weight or less, and 0.05% by weight or more 5 It is contained so as to satisfy the range of 0.000% by weight or less,
Cu-Zn system, Cu-Fe system, Fe-Zn system, Cu-F
e-Zn-based, Ti-Ni-based, and Ni-Si-based metals
It further contains at least one kind of intercalation compound , and the balance consists of Cu and inevitable impurities.

The electrode wire for wire electric discharge machining according to the third invention is preferably such that the additive elements other than Si are B and Ti.
And Mg.

More preferably, B is 0.005% by weight.
1.0 wt% or less, Ti is 0.01 wt% or more and 1.0 wt% or less, and Mg is 0.01 wt% or more and 4.0 wt% or less.

Further, the wire electric discharge machining electrode wire according to the third invention is characterized in that the additive element other than Si is preferably composed of Ni.

More preferably, Ni is 0.04% by weight.
It is characterized in that it is at least 4.0% by weight.

Further, the present inventors have found that brass and Al and Si
In addition to B, In, Ge, Sn,
By adding Ti, Mn, Fe, Ni, Mg, P or Sb, the electric discharge machining characteristics and the wire drawing characteristics can be improved as compared with a material in which only Al and Si are added to brass. Based on this finding, the inventors have completed the fourth invention.

That is, in the electrode wire for wire electric discharge machining according to the fourth invention, Zn is 34 wt% or more and 50 wt% or less, and Al is 0.01 wt% or more and 1.0 wt% or more as an additive element.
% By weight and 0.01% by weight to 1.0% by weight of Si
The following, B, In, Ge, Sn, Ti, Mn, Fe, N
0.05% by weight or more and 5.0% by weight or more and 4.0% by weight or less of at least one element selected from the group consisting of i, Mg, P, and Sb as a total of added elements.
It is contained so as to satisfy the range of not more than 00% by weight, Cu-
Zn-based, Cu-Fe-based, Fe-Zn-based, Cu-Fe-Z
n system, Ti-Ni system, Ni-Si system, Al-Si system, A
1-Ni-Si based and Al-Ni based intermetallic compounds
Of at least one of the above , with the balance being Cu and inevitable impurities.

The wire electric discharge machining electrode wire according to the fourth invention is preferably characterized in that the additive element other than Al and Si is constituted by Ni.

More preferably, Ni is 0.04% by weight.
It is characterized in that it is at least 4.0% by weight.

Further, in the wire electric discharge machining electrode wire according to the fourth invention, preferably, an additive element other than Al and Si is added.
In, Ge, Sn, Fe, Ni, Mg, S
and b.

More preferably, In is 0.005 wt% or more and 1.0 wt% or less, Ge is 0.005 wt% or more and 0.5 wt% or less, and Sn is 0.01 wt% or less.
Or more and 2.0 wt% or less, Fe is 0.005 wt%
Or more and 0.5 wt% or less, Si is 0.01 wt% or more and 0.5 wt% or less, Mg is 0.01 wt% or more and 4.0 wt% or less, and Sb is 0.01 wt% or less. % Or more and 1.0% by weight or less.

The inventors of the present invention further added B, Al, In, Si, Ge and S to a material obtained by adding Ni to brass.
It has been found that the addition of n, Ti, Mn, Fe, Mg, P or Sb makes it possible to improve the electric discharge machining characteristics and the wire drawing characteristics as compared with a material in which only Ni is added to brass. Then, the fifth invention was completed.

That is, in the electrode wire for wire electric discharge machining according to the fifth invention, Zn is 34 wt% or more and 50 wt% or less, and Ni is 0.01 wt% or more and 2.0 wt% or more as an additive element.
%, B, Al, In, Si, Ge, Sn, T
3. 0.005 wt% or more of at least one element selected from the group consisting of i, Mn, Fe, Mg, P, and Sb
0% by weight or less is contained so as to satisfy a range of 0.05% by weight or more and 5.00% by weight or less as a total of additional elements, and Cu-Zn system, Cu-Fe system, Fe-Zn system, C
u-Fe-Zn system, Ti-Ni system, Ni-Si system, Al
-Si system, Al-Ni-Si system, and Al-Ni system
It further comprises at least one kind of intermetallic compound , and the balance is C
u and inevitable impurities.

The electrode wire for wire electric discharge machining according to the fifth invention is preferably characterized in that the additive element other than Ni is composed of Ti.

More preferably, Ti is 0.01% by weight.
It is characterized in that it is not less than 2.0% by weight.

In the wire electric discharge machining electrode wire according to the fifth aspect of the invention, preferably, the additive element other than Ni is In.
And Mg.

More preferably, In is 0.005% by weight or more and 1.0% by weight or less, and Mg is 0.01% by weight.
It is characterized in that it is at least 4.0% by weight.

The inventors of the present invention further added B, Al, In, Si, Ge and S to a material obtained by adding Mn to brass.
It was found that the addition of n, Ti, Fe, Ni, P or Sb makes it possible to improve the electric discharge machining characteristics and the wire drawing characteristics as compared with a material in which only Mn is added to brass. The sixth invention has been completed.

That is, the electrode wire for wire electric discharge machining according to the sixth invention is such that Zn is 34 wt% or more and 50 wt% or less, and Mn is 0.01 wt% or more and 1.0 wt% or less,
B, Al, In, Si, Ge, Sn, Ti, Fe, N
at least one element selected from the group consisting of i, P, and Sb in an amount of 0.005% by weight or more and 3.0% by weight or less,
It is contained so as to satisfy a range of 0.02% by weight or more and 4.0% by weight or less as a total of additional elements ,
Cu-Fe system, Fe-Zn system, Cu-Fe-Zn system, T
i-Ni system, Ni-Si system, Al-Si system, Al-Ni
-Si-based and Al-Ni-based intermetallic compounds are less
Both further contain one kind , and the balance consists of Cu and unavoidable impurities.

Further, the electrode wire for wire electric discharge machining according to the sixth invention is characterized in that the additive element other than Ni is preferably composed of Ge.

More preferably, Ge is 0.005% by weight or more and 0.5% by weight or less.

The inventors of the present invention further added B, Al, In, Si, Ge and S to a material obtained by adding Mg to brass.
It was found that the addition of n, Ti, Fe, Ni, P or Sb makes it possible to improve the electric discharge machining characteristics and the wire drawing characteristics as compared with a material in which only Mg is added to brass. The seventh invention has been completed.

That is, in the electrode wire for wire electric discharge machining according to the seventh invention, Zn is 34 wt% or more and 50 wt% or less, and Mg is 0.05 wt% or more and 4.5 wt% or more as an additive element.
%, B, Al, In, Si, Ge, Sn, T
The total amount of at least one element selected from the group consisting of i, Fe, Ni, P, and Sb is 0.005 wt% or more and 3.0 wt% or less, and 0.05 wt% or more 5 wt% C content of 0.0% by weight or less,
u-Zn system, Cu-Fe system, Fe-Zn system, Cu-Fe
-Zn system, Ti-Ni system, Ni-Si system, Al-Si
Between Al-Ni-Si and Al-Ni-based metals
It further contains at least one kind of compound , and the balance consists of Cu and inevitable impurities.

Further, the present inventors have found that brass has Mn and Mg.
In addition to B, Al, In, Si,
When Ge, Sn, Ti, Fe, Ni, P or Sb is added, the electrical discharge machining characteristics and the wire drawing characteristics can be improved as compared with a material in which Mn and Mg are simply added to brass. As a result, they have completed the eighth invention.

That is, in the electrode wire for wire electric discharge machining according to the eighth invention, Zn is 34 wt% or more and 50 wt% or less, and Mn is 0.01 wt% or more and 1.0 wt% or more as an additive element.
% By weight and 0.05% by weight to 4.5% by weight of Mg
The following, B, Al, In, Si, Ge, Sn, Ti, F
0.1 wt% or more and 5.0 wt% or more and 3.0 wt% or less of at least one element selected from the group consisting of e, Ni, P, and Sb as the total of added elements
Cu-Zn is contained so as to satisfy the range of not more than wt%.
System, Cu-Fe system, Fe-Zn system, Cu-Fe-Zn
System, Ti-Ni system, Ni-Si system, Al-Si system, Al
-Ni-Si-based and Al-Ni-based intermetallic compounds
At least one kind is further contained, and the balance is composed of Cu and unavoidable impurities.

In the electrode wire for wire electric discharge machining according to the eighth aspect of the invention, preferably, the additive elements other than Mn and Mg are Ge.
, Sn, and P.

More preferably, Ge is 0.005% by weight or more and 0.5% by weight or less, and Sn is 0.01% by weight.
Or more and 2.0 wt% or less, and P is 0.005 wt% or more and 0.5 wt% or less.

[0076]

In addition, the present inventors added B, Al, In, Si, Ge, Sn, Ti and M to brass as additional elements.
When at least two kinds of elements selected from the group consisting of n, Fe, Ni, Mg, P, and Sb are added, some of at least two kinds of the added elements form fine precipitates of intermetallic compounds. It was found that the electrical discharge machining characteristics are remarkably improved when formed, and the ninth invention was completed.

That is, in the electrode wire for wire electric discharge machining according to the ninth invention, Zn is contained in an amount of 34% by weight or more and 50% by weight or less and B, Al, In, Si, Ge, S as additional elements.
At least two kinds of elements selected from the group consisting of n, Ti, Mn, Fe, Ni, Mg, P, and Sb are added in a total amount of 0.05% by weight or more and 5.00% by weight or less. Satisfactorily contained and Cu-Zn based, C
u-Fe system, Fe-Zn system, Cu-Fe-Zn system, Ti
-Ni system, Ni-Si system, Al-Si system, Al-Ni-
At least Si-based and Al-Ni-based intermetallic compounds
Also contains one kind , and the balance consists of Cu and unavoidable impurities.

The electrode wire for wire electric discharge machining according to the present invention is preferably characterized in that the melting point of the intermetallic compound is 500 ° C. or higher and 3000 ° C. or lower.

The electrode wire for wire electric discharge machining according to the present invention preferably has a strength ratio ((200
Tensile strength at ℃) / (Tensile strength at room temperature)
X100 % ) is 40% or more, more specifically 40%
It is characterized by being 90% or less.

The electrode wire for wire electric discharge machining according to the present invention is more preferably characterized by containing Zn in an amount of more than 40% by weight and 45% by weight or less.

[0082]

In the first aspect of the invention, in addition to Cu and Zn,
At least one element selected from the group consisting of B, In, Ge, Sn, Ti, Fe, P, and Sb is allowed to coexist, and Cu—Zn system, Cu—Fe system, Fe—Zn system,
And at least Cu—Fe—Zn intermetallic compounds
With the configuration including one further, particularly, the electric discharge machining characteristics at the time of wire electric discharge machining as the electrode wire for wire electric discharge machining are significantly improved, and at the same time, the wire drawing characteristics at the time of manufacturing the electrode wire for wire electric discharge machining are improved. This is a significant improvement.

The second aspect of the present invention is Cu, Zn, Al, and B, In, Ge, Sn, Ti, M.
At least one element selected from the group consisting of n, Fe, Ni, Mg, P, and Sb coexists, and Cu
-Zn system, Cu-Fe system, Fe-Zn system, Cu-Fe-
At least Zn-based and Ti-Ni-based intermetallic compounds
In addition, by further including one type , especially, the electric discharge machining characteristics at the time of wire electric discharge machining as an electrode wire for wire electric discharge machining is significantly improved, and at the same time, the wire drawing characteristics at the time of manufacturing the electrode wire for wire electric discharge machining Is significantly improved.

The third aspect of the present invention is Cu, Zn, Si, and B, In, Ge, Sn, Ti, M.
At least one element selected from the group consisting of n, Fe, Ni, Mg, P, and Sb coexists, and Cu
-Zn system, Cu-Fe system, Fe-Zn system, Cu-Fe-
Zn-based, Ti-Ni-based, and Ni-Si-based intermetallicization
Due to the composition further containing at least one compound ,
In particular, it significantly improves the electrical discharge machining characteristics during wire electrical discharge machining as an electrode wire for wire electrical discharge machining,
The wire drawing characteristics of the electrode wire for wire electric discharge machining are remarkably improved.

Further, the fourth invention is Cu, Zn, Al.
And Si, in addition to B, In, Ge, Sn, T
At least one element selected from the group consisting of i, Mn, Fe, Ni, Mg, P, and Sb is allowed to coexist, and Cu—Zn system, Cu—Fe system, Fe—Zn system, Cu
-Fe-Zn system, Ti-Ni system, Ni-Si system, Al-
Si-based, Al-Ni-Si-based, and Al-Ni-based gold
With the configuration that at least one kind of intergeneric compound is further included, particularly, the electric discharge machining characteristics at the time of wire electric discharge machining as the electrode wire for wire electric discharge machining is remarkably improved, and at the same time when the electrode wire for wire electric discharge machining is manufactured. The wire drawing properties have been remarkably improved.

The fifth aspect of the present invention is Cu, Zn, and Ni, and further B, Al, In, Si, Ge, and S.
At least one element selected from the group consisting of n, Ti, Mn, Fe, Mg, P, and Sb is allowed to coexist, and Cu—Zn system, Cu—Fe system, Fe—Zn system, Cu
-Fe-Zn system, Ti-Ni system, Ni-Si system, Al-
Si-based, Al-Ni-Si-based, and Al-Ni-based gold
With the configuration that at least one kind of intergeneric compound is further included, particularly, the electric discharge machining characteristics at the time of wire electric discharge machining as the electrode wire for wire electric discharge machining is remarkably improved, and at the same time when the electrode wire for wire electric discharge machining is manufactured. The wire drawing properties have been remarkably improved.

The sixth aspect of the present invention is Cu, Zn, and Mn, and further B, Al, In, Si, Ge, and S.
At least one element selected from the group consisting of n, Ti, Fe, Ni, P and Sb coexists, and Cu
-Zn system, Cu-Fe system, Fe-Zn system, Cu-Fe-
Zn-based, Ti-Ni-based, Ni-Si-based, Al-Si-based,
Al-Ni-Si-based and Al-Ni-based intermetallic compounds
In particular, the structure including at least one kind of material significantly improves the electric discharge machining characteristics during wire electric discharge machining as an electrode wire for wire electric discharge machining, and at the same time, draws wire during manufacturing of the electrode wire for wire electric discharge machining. The processing characteristics are remarkably improved.

The seventh aspect of the present invention is Cu, in addition to Zn and Mg, B, Al, In, Si, Ge and S.
At least one element selected from the group consisting of n, Ti, Fe, Ni, P and Sb coexists, and Cu
-Zn system, Cu-Fe system, Fe-Zn system, Cu-Fe-
Zn-based, Ti-Ni-based, Ni-Si-based, Al-Si-based,
Al-Ni-Si-based and Al-Ni-based intermetallic compounds
In particular, the structure including at least one kind of material significantly improves the electric discharge machining characteristics during wire electric discharge machining as an electrode wire for wire electric discharge machining, and at the same time, draws wire during manufacturing of the electrode wire for wire electric discharge machining. The processing characteristics are remarkably improved.

In the eighth invention, Cu, Zn, Mn are used.
In addition to Mg and Mg, B, Al, In, Si, G
At least one element selected from the group consisting of e, Sn, Ti, Fe, Ni, P, and Sb is allowed to coexist, and Cu--Zn system, Cu--Fe system, Fe--Zn system, Cu
-Fe-Zn system, Ti-Ni system, Ni-Si system, Al-
Si-based, Al-Ni-Si-based, and Al-Ni-based gold
With the configuration that at least one kind of intergeneric compound is further included, particularly, the electric discharge machining characteristics at the time of wire electric discharge machining as the electrode wire for wire electric discharge machining is remarkably improved, and at the same time when the electrode wire for wire electric discharge machining is manufactured. The wire drawing properties have been remarkably improved.

Next, in the first to ninth inventions, Z
The reason for limiting the content of n will be described.

In the first to ninth inventions, the content of Zn is set to be 34% by weight or more and 50% by weight or less.
When the content of n is less than 34% by weight, the electric discharge machining speed during wire electric discharge machining does not show a significant improvement as compared with the conventional electrode wire for wire electric discharge machining, while the content of Zn is This is because if it exceeds 50% by weight, the wire drawing characteristics at the time of manufacturing the electrode wire for wire electric discharge machining deteriorates, and it becomes difficult to manufacture the electrode wire for wire electric discharge machining.

In the first to ninth inventions, the content of Zn is more preferably more than 40% by weight and 50% by weight.
Or less, more preferably more than 40% by weight and 45
It is less than or equal to wt.

In the first to ninth inventions, the Zn content is preferably in the range of more than 40% by weight because the conventional electrode wire for wire electric discharge machining in which the Zn content exceeds 40% by weight, More specifically, as compared with a brass (Cu-Zn alloy) wire having a Zn content of more than 40% by weight, a remarkable improvement in the wire drawing characteristics at the time of manufacturing an electrode wire for wire electric discharge machining. Because it is recognized.

In the first to ninth inventions, Z
This is because when the content of n exceeds 40% by weight, the electrode wire for wire electric discharge machining exhibits excellent electric discharge machining characteristics during wire electric discharge machining.

In addition, in the first to ninth inventions, the content of each additional element is limited so long as the content of each additional element is within the range specified in the first to ninth inventions. For example, in comparison with the conventional wire electric discharge machining electrode wire, a breakthrough improvement was observed in the electric discharge machining characteristics during wire electric discharge machining as a wire electric discharge machining electrode wire.
In addition, a remarkable improvement in wire drawing characteristics in the production of the electrode wire for wire electric discharge machining is recognized.

[0096] Further, in the invention of the first to eighth, contain an intermetallic compound as a component part of the additional element
As a result , as compared with the conventional wire electric discharge machining electrode wire, an epoch-making improvement in electric discharge machining characteristics during wire electric discharge machining as the wire electric discharge machining electrode wire is recognized.

The term "intermetallic compound having a part of the additive element as a constituent element" used in the present specification more specifically means, for example, C other than CuZn intermetallic compound.
Intermetallic compound of u and additional element, intermetallic compound of Zn and additional element, intermetallic compound of additional elements, or C
It means an intermetallic compound of u, Zn and an additional element.

In the ninth invention, Cu is replaced by Zn
In addition to B, Al, In, Si, Ge, Sn, Ti, M
at least two elements selected from the group consisting of n, Fe, Ni, Mg, P, and Sb coexist, and Cu-Z
n-based, Cu-Fe-based, Fe-Zn-based, Cu-Fe-Zn
System, Ti-Ni system, Ni-Si system, Al-Si system, Al
-Ni-Si-based and Al-Ni-based intermetallic compounds
When at least one kind is further included, an epoch-making improvement in the electric discharge machining characteristics at the time of wire electric discharge machining as a wire electric discharge machining electrode wire is recognized as compared with the conventional wire electric discharge machining electrode wire.

The term “intermetallic compound having a part of at least two kinds of elements as constituent elements” used in the present specification is more specifically, for example, at least two kinds other than CuZn intermetallic compounds. An intermetallic compound of the additional elements, an intermetallic compound of Cu and the at least two additional elements, an intermetallic compound of Zn and the at least two additional elements, or Cu and Zn and the at least two of the additional elements. It means an intermetallic compound with an additional element.

[0100]

EXAMPLES Preferred examples will be described below, but the present invention is not limited to the following examples.

First, using a graphite crucible, Cu (purity 9
9.99%) and Zn (purity 99.99%) is added, followed by B, Al, Si, Ge, Sn, Ti, M.
At least one element selected from n, Fe, Ni, Mg, P, and Sb was added to produce ingots (alloy materials) having various compositions shown in Tables 1 and 2. Ingot (alloy material)
When producing, the surface of the molten metal is preferably covered with charcoal powder. The size of each ingot (alloy material) was 40 mm in diameter and 400 mm in length.

Next, each ingot (alloy material) was hot extruded into a roughly drawn wire having a diameter of 8 mm, and then wire drawing and heat treatment (annealing) were repeated to obtain a wire discharge having a diameter of 0.2 mm. A processing electrode wire was manufactured.

Further, in order to eliminate the wire habit, at the final stage of the wire drawing step, light electricity and heat treatment were performed.

The wire drawing characteristics of each alloy material in the manufacturing process of the electrode wire for wire electric discharge machining were evaluated.

More specifically, regarding the wire drawing characteristics of each alloy material, the heat treatment necessary for drawing a wire having a diameter of 8 mm into a wire having a desired wire diameter, more specifically, a wire having a diameter of 0.2 mm. The number of times (annealing) (workability (time)) was evaluated.
Further, a wire rod having a diameter of 0.2 mm has many defects and many wire breakages in the wire drawing step, and as a result, a wire rod having a diameter of 0.2 mm could not be formed.

The wire drawing characteristics of the alloy material are better as the number of heat treatments (annealing) is smaller.

The results are shown in Table 4. Next, the wire electric discharge machining electrode wire obtained through the above steps was attached to a wire electric discharge machine, and wire electric discharge machining was performed under the following conditions.

Conditions for wire electric discharge machining: Work piece: SKD-11 (heat treated material) 50 mm in diameter Electrode wire diameter for wire electric discharge machining: 0.2 mm Electric discharge machining characteristics of electrode wire for wire electric discharge machining during wire electric discharge machining Was evaluated.

More specifically, the electric discharge machining characteristics of the electrode wire for wire electric discharge machining include the electric discharge machining speed, the amount of scattered material from the electrode wire to the work piece, the surface texture of the work piece, and the wire electric discharge machining electrode. The wire was evaluated by the state of disconnection during wire electric discharge machining and the automatic connection property of the electrode wire for wire electric discharge machining after wire breakage.

The term "electric discharge machining rate" used in this specification means a machining cross-sectional area per unit time (product of machining feed rate and thickness of workpiece). In the present embodiment, the electrical discharge machining speed is the same as that of the conventional alloy material (No. 3 in Table 3).
When the electric discharge machining speed of the conventional wire electric discharge machining electrode wire made of the alloy material shown in 7) is set to 1, the electric discharge machining speed of each wire electric discharge machining electrode wire is shown as a ratio (machining speed ratio). ing.

Regarding the amount of the scattered material from the electrode wire attached to the work piece, the conventional alloy material (No. 37 in Table 3) was used.
When the amount of adhered substances from the conventional wire electric discharge machining electrode wire made of the alloy material) is set to 100, the amount of scattered matter adhered from each wire electric discharge machining electrode line is relative. Shown as a ratio.

The surface texture of the workpiece is A when the surface of the workpiece after processing is very smooth and has no dimensional difference in the thickness direction, and the surface is smooth. B is good with little dimensional difference in the thickness direction, and C is slightly rough surface with slight dimensional difference in the thickness direction.
In the figure, D shows a rough surface and a Tyco-like shape in the middle portion in the thickness direction.

Further, the electrode wire for wire electric discharge machining is at 200 ° C.
Strength ratio at ((tensile strength at 200 ° C) /
(Tensile strength at room temperature (20 ° C)) x 100
(%)) Was measured.

The above results are shown in Tables 4 and 5. In the same manner as in the conventional example, it has the composition shown in Table 3,
After producing a conventional alloy material, a conventional wire electric discharge machining electrode wire was produced in the same manner as in the example.

In the manufacturing process of these conventional electrode wires for wire electric discharge machining, the degree of difficulty of wire drawing of each alloy material was evaluated by the same method as in the example.

Next, a conventional wire electric discharge machining electrode wire was attached to a wire electric discharge machine, and electric discharge machining was carried out under the same conditions as in the embodiment. The electric discharge characteristics, more specifically, the electric discharge machining speed, the electrode to be machined The amount of scattered matter from the wire, the surface property of the workpiece, the disconnection state of the electrode wire for wire electrical discharge machining during electric discharge machining, and the automatic wire connection property after the wire breakage were evaluated.

The results are shown in Table 6.

[0118]

[Table 1]

[0119]

[Table 2]

[0120]

[Table 3]

[0121]

[Table 4]

[0122]

[Table 5]

[0123]

[Table 6]

With reference to Tables 1 to 6, the alloy material Nos. 1-No. The electrode wire for wire electric discharge machining manufactured from No. 12 of the conventional alloy material No.
37-No. Compared to the conventional wire electric discharge machining electrode wire manufactured from No. 41, the electric discharge machining characteristics during wire electric discharge machining are significantly improved.

More specifically, alloy materials No. 1 to No. 1 shown in Table 1 were used. The electrode wire for wire electric discharge machining manufactured from No. 12 is a conventional alloy material No. 37-No. Compared with the electrode wire for wire electric discharge machining manufactured from No. 41, the electric discharge machining speed ratio is remarkably improved, and the amount of the scattered matter from the electrode wire for wire electric discharge machining attached to the workpiece is significantly reduced. The surface shape after machining is remarkably improved, the number of breaks in the wire electric discharge electrode wire during electric discharge machining is significantly reduced, and there is no problem with the automatic wire connection after the wire electric discharge machining electrode wire is broken. I understand.

Further, it should be noted that alloy material No.
1-No. No. 12 has a Zn content of 37% by weight or more,
It is preferably 40% by weight or more and 50% by weight or less, and more preferably 40% by weight or more and 45% by weight or less, because wire drawing is possible up to a wire having a diameter of 0.2 mm.

That is, in the present invention, the Zn content is 37
It is in the point that it is possible to provide an electrode wire for wire electric discharge machining which is more than 40% by weight, and more preferably more than 40% by weight.

Further, alloy material Nos. Listed in Table 2 were used. Thirteen
~ No. 36 indicates an alloy material as a comparative example,
More specifically, the critical value of the content of the additional element, or,
It shows the critical value of the content of Zn.

More specifically, in Table 2, alloy material No. Thirteen
~ No. The alloy material shown in 24 is an example of the alloy material showing the critical value of the content of the additional element.

That is, the alloy material No. 22, refer to
An alloy material having a total content of additive elements of 0.004% by weight or less has a conventional wire drawing property (No. 3 in Table 3).
7, No. 38, No. 39 or No. 40) and the content of the additional element is 0.
The electrode wire for wire electric discharge machining manufactured from an alloy material of 004% by weight or less is a conventional alloy material (No. 37 to N in Table 3).
o. Compared with the electrode wire for wire electric discharge machining manufactured from the alloy material 41), the electric discharge machining characteristics are not so much improved.

On the other hand, in Table 2, alloy material No. 16, alloy material No. 19, or alloy material No. 23, there is a problem in the wire drawing property in the alloy material in which the total content of the additional elements is 6% by weight or more.

Further, in Table 2, alloy material No. 25-No.
The alloy material described in No. 36 is an example of an alloy material showing a critical value of Zn content.

In Table 2, alloy material No. 26, alloy material No.
28, alloy material No. 30, alloy material No. 31 or alloy material No. 33, the Zn content is 50% by weight
The above alloy materials have problems in wire drawing properties.

On the other hand, in Table 2, alloy material No. 32, in the alloy material having a Zn content of about 34% by weight, there is no problem in wire drawing characteristics, but the Zn content is 3
The electrode wire for wire electric discharge machining manufactured from an alloy material of about 4 wt% is a conventional alloy material (No. 37 to No. 37 in Table 3).
It cannot be said that the electric discharge machining characteristics are improved as compared with the conventional electrode wire for wire electric discharge machining manufactured from the alloy material 41).

From the above facts, the content of Zn in the electrode wire for wire electric discharge machining according to the present invention is not particularly limited to the following cases, but it can be said that it is preferably 34% by weight or more.

In this example, the alloy material No. 1 was used as the wire electric discharge machining electrode wire according to the first invention. The example of the electrode wire for wire electric discharge machining manufactured from No. 10 is shown.
The electrode wire for wire electric discharge machining according to the invention of No. 1 is an alloy material No.
It is needless to say that the present invention is not limited to the wire electric discharge machining electrode wire manufactured from 10.

That is, the electrode wire for wire electric discharge machining according to the first invention contains Zn in an amount of 34 wt% or more and 50 wt% or less and B, In, Ge, Sn, Ti, F as additive elements.
At least one element selected from the group consisting of e, P, and Sb is contained so as to satisfy the range of 0.05% by weight or more and 5.00% by weight or less as the total of additive elements, and C
u-Zn system, Cu-Fe system, Fe-Zn system, and Cu
It should be additionally noted that the same effect as that of the example is exhibited as long as it further contains at least one kind of —Fe—Zn-based intermetallic compound , and the balance is made of Cu and unavoidable impurities. In addition, B, In, Ge, Sn, Ti, Fe, P,
Sb may be used alone or in combination of two or more kinds.

Further, in this embodiment, as the electrode wire for wire electric discharge machining according to the second invention, the alloy material No. 4, alloy material No. 5, alloy material No. Although the example of the wire electric discharge machining electrode wire manufactured from No. 9 is shown, the wire electric discharge machining electrode wire according to the second invention is limited to the wire electric discharge machining electrode wire manufactured from these alloy materials. Note that this is not the case.

That is, in the electrode wire for wire electric discharge machining according to the second invention, Zn is 34 wt% or more and 50 wt% or less, and Al is 0.01 wt% or more and 1.0 wt% or more as an additive element.
%, B, In, Ge, Sn, Ti, Mn, F
At least one element selected from the group consisting of e, Ni, Mg, p, and Sb is 0.005% by weight or more and 4.0% by weight or less, and the total of the additive elements is 0.05% by weight or more and 5% by weight or more. It is contained so as to satisfy the range of 0.000% by weight or less,
Cu-Zn system, Cu-Fe system, Fe-Zn system, Cu-F
Small amount of e-Zn-based and Ti-Ni-based intermetallic compounds
It is additionally noted that the same effect as that of the embodiment is obtained as long as at least one kind is further contained and the balance is Cu and inevitable impurities.

Further, in this embodiment, as the electrode wire for wire electric discharge machining according to the third invention, the alloy material No. Although the example of the wire electric discharge machining electrode wire manufactured from No. 7 is shown, the wire electric discharge machining electrode wire according to the third invention is the alloy material No. 7
Needless to say, the present invention is not limited to the wire electric discharge machining electrode wire manufactured from.

That is, in the electrode wire for wire electric discharge machining according to the third invention, Zn is 34 wt% or more and 50 wt% or less, and Si is 0.01 wt% or more and 1.0 wt% or more as an additive element.
%, B, In, Ge, Sn, Ti, Mn, F
At least one element selected from the group consisting of e, Ni, Mg, P, and Sb is 0.005% by weight or more and 4.0% by weight or less, and 0.05% by weight or more 5 It is contained so as to satisfy the range of 0.000% by weight or less,
Cu-Zn system, Cu-Fe system, Fe-Zn system, Cu-F
e-Zn-based, Ti-Ni-based, and Ni-Si-based metals
It should be additionally noted that the same effect as that of the example is obtained as long as it further contains at least one kind of intercalation compound and the balance is Cu and inevitable impurities.

Further, in this embodiment, as the wire electrode for wire electric discharge machining according to the fourth invention, the alloy material No. 2, alloy material No. Although the example of the wire electric discharge machining electrode wire manufactured from No. 11 is shown, the wire electric discharge machining electrode wire according to the fourth invention is limited to the wire electric discharge machining electrode wire manufactured from these alloy materials. Not to mention.

That is, in the electrode wire for wire electric discharge machining according to the fourth invention, Zn is 34 wt% or more and 50 wt% or less, and Al as an additive element is 0.01 wt% or more and 1.0 wt% or more.
% By weight and 0.01% by weight to 1.0% by weight of Si
The following, B, In, Ge, Sn, Ti, Mn, Fe, N
0.05% by weight or more and 5.0% by weight or more and 4.0% by weight or less of at least one element selected from the group consisting of i, Mg, P, and Sb as a total of added elements.
It is contained so as to satisfy the range of not more than 00% by weight, Cu-
Zn-based, Cu-Fe-based, Fe-Zn-based, Cu-Fe-Z
n system, Ti-Ni system, Ni-Si system, Al-Si system, A
1-Ni-Si based and Al-Ni based intermetallic compounds
It should be additionally noted that the same effect as that of the example is exerted as long as it further contains at least one of the above , and the balance consists of Cu and unavoidable impurities.

Further, in this embodiment, as the electrode wire for wire electric discharge machining according to the fifth invention, the alloy material No. 1, alloy material No. 2, alloy material No. 4, alloy material No. 6, alloy material N
o. 8, alloy material No. 11 or alloy material No. 12
Although the example of the wire electric discharge machining electrode wire manufactured from is shown, the wire electric discharge machining electrode wire according to the fifth invention is not limited to the wire electric discharge machining electrode wire manufactured from these alloy materials. Needless to say

That is, in the electrode wire for wire electric discharge machining according to the fifth invention, Zn is 34 wt% or more and 50 wt% or less, and Ni as an additive element is 0.01 wt% or more and 2.0 wt% or less.
%, B, Al, In, Si, Ge, Sn, T
0.05% by weight or more and 4.0 or more of at least one element selected from the group consisting of i, Mn, Fe, Mg, P, and Sb.
% Or less, so as to satisfy the range of 0.05% by weight or more and 5.00% by weight or less, as a total of additional elements, Cu-Zn system, Cu-Fe system, Fe-Zn system, Cu
-Fe-Zn system, Ti-Ni system, Ni-Si system, Al-
Si-based, Al-Ni-Si-based, and Al-Ni-based gold
Further containing at least one kind of intergeneric compound , the balance Cu
It should be additionally noted that the same effect as that of the embodiment is obtained as long as it is composed of unavoidable impurities.

Further, in this embodiment, as the electrode wire for wire electric discharge machining according to the seventh invention, the alloy material No. 4, alloy material No. 5, alloy material No. 7, alloy material No. 8 or
Alloy material No. Although an example of the wire electric discharge machining electrode wire manufactured from No. 9 is shown, the wire electric discharge machining electrode wire according to the seventh invention is limited to the wire electric discharge machining electrode wire manufactured from these alloy materials. Not to mention.

That is, in the electrode wire for wire electric discharge machining according to the seventh invention, Zn is 34 wt% or more and 50 wt% or less, and Mg is 0.05 wt% or more and 4.5 wt% or more as an additive element.
%, B, Al, In, Si, Ge, Sn, T
The total amount of at least one element selected from the group consisting of i, Fe, Ni, P, and Sb is 0.005 wt% or more and 3.0 wt% or less, and 0.05 wt% or more 5 wt% C content of 0.0% by weight or less,
u-Zn system, Cu-Fe system, Fe-Zn system, Cu-Fe
-Zn system, Ti-Ni system, Ni-Si system, Al-Si
Between Al-Ni-Si and Al-Ni-based metals
It is additionally noted that the same effect as that of the example is exerted as long as the compound further contains at least one kind of compound , and the balance consists of Cu and unavoidable impurities. Further, in the present embodiment, as the wire electric discharge machining electrode wire according to the eighth invention,
Alloy material No. Although the example of the wire electric discharge machining electrode wire manufactured from No. 3 is shown, the wire electric discharge machining electrode wire according to the eighth invention is made of alloy material No. Needless to say, the present invention is not limited to the wire electric discharge machining electrode wire manufactured from No. 3.

That is, in the electrode wire for wire electric discharge machining according to the eighth invention, Zn is 34 wt% or more and 50 wt% or less, and Mn is 0.01 wt% or more and 1.0 wt% or more as an additive element.
% By weight or less and 0.05% by weight or more and 4.5% by weight or less of Mg, B, Al, In, Si, Ge, Sn, Ti, F
0.1 wt% or more and 5.0 wt% or more and 3.0 wt% or less of at least one element selected from the group consisting of e, Ni, P, and Sb as the total of added elements
Cu-Zn is contained so as to satisfy the range of not more than wt%.
System, Cu-Fe system, Fe-Zn system, Cu-Fe-Zn
System, Ti-Ni system, Ni-Si system, Al-Si system, Al
-Ni-Si-based and Al-Ni-based intermetallic compounds
It should be additionally noted that the same effect as that of the example is obtained as long as it further contains at least one kind and the balance is made of Cu and unavoidable impurities.

In this embodiment, the example of the wire electrode for wire electric discharge machining according to the sixth invention is not shown, but the sixth embodiment
As an example of the electrode wire for wire electric discharge machining according to the invention of No. 3, the alloy material No. An electrode wire for wire electric discharge machining was produced in the same manner as in Example except that Ti of No. 1 was changed to Mn. The same wire drawing characteristics as those of No. 1 and the electrode wire for wire electric discharge machining manufactured from this alloy material are alloy material No. It should be additionally noted that the same effect as that of the wire electric discharge machining electrode wire manufactured from No. 1 was exhibited.

Further, in the electrode wire for wire electric discharge machining according to the sixth invention, Zn is 34 wt% or more and 50 wt% or less, and Mn is 0.01 wt% or more and 1.0 wt% as an additive element.
The following, B, Al, In, Si, Ge, Sn, Ti, F
3. At least one element selected from the group consisting of e, Ni, P, and Sb is 0.005 wt% or more and 3.0 wt% or less, and 0.02 wt% or more as a total of additive elements.
Cu-Z is contained so as to satisfy the range of 0% by weight or less.
n-based, Cu-Fe-based, Fe-Zn-based, Cu-Fe-Zn
System, Ti-Ni system, Ni-Si system, Al-Si system, Al
-Ni-Si-based and Al-Ni-based intermetallic compounds
It should be additionally noted that the same effect as that of the example is obtained as long as it further contains at least one kind and the balance is made of Cu and unavoidable impurities.

Further, the inventors of the present invention observed and analyzed the structure of the electrode wire for wire electric discharge machining according to the first to eighth inventions by a transmission electron microscope, and as a result, added elements were added to the electrode wire for wire electric discharge machining. this fine crystalline material made of the intermetallic compound be part components are uniformly formed
From this, it was found that the electrical discharge machining characteristics were remarkably improved.

More specifically, for example, alloy material No.
In the electrode wire for wire electric discharge machining manufactured from 10,
Α phase, β phase, Cu in the structure of the electrode wire for wire electric discharge machining
In addition to the intermetallic compound of Zn, an intermetallic compound having Cu and Fe as constituent elements, an intermetallic compound having Fe and Zn as constituent elements, and / or CuFeZn having Cu, Fe, and Zn as constituent elements, and the like. in particular there is an intermetallic compound
Ri has led to the finding that the electric discharge machining characteristics are remarkably improved.

Further, alloy material No. In wire electric discharge machining electrode wire manufactured from 1, the tissue of the wire electrical discharge machining electrode wire, alpha-phase, beta-phase, in addition to the intermetallic compound of CuZn, due to the presence of intermetallic compounds such as TiNi, We have found that the electrical discharge machining characteristics have been remarkably improved.

Further, alloy material No. 2 to alloy material No. 9,
Alloy material No. 11, or alloy material No. In the electrode wire for wire electric discharge machining manufactured from No. 12, one of the additive elements added as an additive element in addition to the intermetallic compounds of α phase, β phase, and CuZn in the structure of the electrode wire for wire electric discharge machining. It has been found that the electric discharge machining characteristics are remarkably improved due to the presence of the intermetallic compound having the part as a constituent element.

Further, in this embodiment, as the electrode wire for wire electric discharge machining according to the ninth invention, the alloy material No. 1 to alloy material No. 9, alloy material No. 11 or alloy material No. 1
Although an example of the wire electric discharge machining electrode wire manufactured from No. 2 is shown, among the wire electric discharge machining electrode wire manufactured from these alloy materials, a part of at least two kinds of elements added as additional elements by intermetallic compound component is formed, more specifically, in the wire electric discharge machining electrode wire, made of intermetallic compound component part of at least two elements of the additive elements fine It has been found that the electric discharge machining characteristics are remarkably improved because the crystalline material is evenly dispersed and formed.

More specifically, for example, alloy material No.
In the structure of the electrode wire for wire electric discharge machining manufactured from No. 2, in addition to the α phase, β phase, and CuZn intermetallic compound, for example, silicide containing Al and Si, Ni,
Containing Si and Si as constituent elements, Al, Si and N
silicide as a component a i, The presence of the intermetallic compound elements Al and Ni, a significant improvement in discharge machining characteristics have led to findings to be seen.

When the melting point of the fine precipitate formed in the electrode wire for wire electric discharge machining according to the first to ninth inventions was measured, the melting point of the fine precipitate (intermetallic compound) was
In all cases, it has been found that the temperature is 500 ° C. or higher and 3000 ° C. or lower.

Further, alloy material No. 1 to alloy material No. 12
The strength ratio at 200 ° C. ((tensile strength at 200 ° C.) / (Tensile strength at room temperature) × 100 % ) of the electrode wire for wire electric discharge machining manufactured from
40% or more and 90% or less, more specifically 50%
It was found that the ratio was from 90% to 90%.

In Table 2, alloy material No. 15 or alloy material No. 17, the electrode wire for wire electric discharge machining manufactured from these alloy materials has a strength ratio at 200 ° C. of less than 40%, and as is clear from Table 2, the surface of the workpiece after machining is processed. The property is poor, the number of breaks in the wire electric discharge electrode wire during wire electric discharge machining is large, and the automatic wire connection property of the wire electric discharge machining electrode wire after wire breakage is poor.

Further, in the electrode wire for wire electric discharge machining carried out by the present inventors, the strength ratio at 200 ° C. was 90%.
More than 10% could not be manufactured.

[0161]

As described above in detail, the wire electric discharge machining electrode wires according to the first to ninth aspects of the invention have the following effects as a result of having the above configuration.

(1) At the time of electric discharge machining, by using the electrode wire for wire electric discharge machining according to the present invention, the surface property of the object to be machined after machining becomes good.

(2) In the wire electric discharge machining electrode wire according to the present invention, scattered matter from the wire electric discharge machining electrode wire is unlikely to adhere to the workpiece.

(3) When the wire electric discharge machining electrode wire according to the present invention is used, the electric discharge machining speed is improved as compared with the conventional wire electric discharge machining electrode wire. That is, the electric discharge machining time can be shortened.

(4) During wire electric discharge machining, the wire electric discharge machining electrode wire according to the present invention is unlikely to be broken. That is, the electrode wire for wire electric discharge machining according to the present invention has high high-temperature strength.

(5) Even when the wire electric discharge machining electrode wire is broken during wire electric discharge machining, the wire electric discharge machining electrode wire according to the present invention is excellent in automatic connection property, so that troubles during use are extremely great. Few.

(6) The material for the electrode wire for wire electric discharge machining according to the present invention is the same as the material for the electrode wire for wire electric discharge machining when manufacturing the electrode wire for wire electric discharge machining, more specifically in the step of forming a wire rod. The material has high wire drawing properties.

In particular, referring to the examples, the material of the electrode wire for wire electric discharge machining according to the present invention has a Zn content of 34% by weight or more, more preferably 37% by weight or more, and further preferably 40% by weight. %, The wire drawing properties do not deteriorate so much.

That is, according to the present invention, as a result of having the above-mentioned constitution, a wire discharge having a Zn content of more than 40% by weight and having a diameter of about 0.2 mm, which has hitherto been impossible to put into practical use. There is an effect that a processing electrode wire can be provided.

Further, in the wire electric discharge machining electrode wire according to the present invention, since the material of the wire electric discharge machining electrode wire is made of a material having low toxicity, it is excellent in work safety during wire electric discharge machining, and Also, the surface safety of the processed object is excellent.

Further, in the wire electric discharge machining electrode wire according to the present invention, since the material of the electrode wire is made of a material which easily forms an alloy, the manufacturing cost of the wire electric discharge machining electrode wire is kept low. It also has the effect of being able to.

As described above, the electrode wire for wire electric discharge machining according to the present invention is used in the field of wire electric discharge machining technology.
Request for reduction of machining cost by shortening the electric discharge machining time,
It is a wire electric discharge machining electrode wire that is extremely useful industrially in response to a request for reduction of manufacturing cost of the wire electric discharge machining electrode wire.

─────────────────────────────────────────────────── ─── Continuation of the front page (72) Taichiro Nishikawa, 1-3-1, Shimaya, Konohana-ku, Osaka City Sumitomo Electric Industries, Ltd. Osaka Works (72) Inventor, Shigeo Ezaki 1-3-1, Shimaya, Konohana-ku, Osaka No. Sumitomo Electric Industries, Ltd. Osaka Works (72) Inventor Toshihiro Kume 1-3-3 Shimaya, Konohana-ku, Osaka Sumitomo Electric Industries Co., Ltd. (56) Reference JP-A-63-22222 (JP, A) ) JP-A-59-143034 (JP, A) JP-A-59-143033 (JP, A) JP-A-59-19639 (JP, A) JP-A-3-236431 (JP, A) JP-A-3- 97817 (JP, A) JP 59-50142 (JP, A) JP 62-57822 (JP, A) JP 5-311282 (JP, A) (58) Fields investigated (Int.Cl. ⁷ , DB name) B23H 7/08

Claims (12)

(57) [Claims] 1. Zn in an amount of 34% by weight or more and 50% by weight or less, and as an additive element, at least one element selected from the group consisting of B, In, Ge, Sn, Ti, Fe, P and Sb, It is contained so as to satisfy a range of 0.005% by weight or more and 5.00% by weight or less as a total of additional elements, and Cu-Zn system, Cu-Fe system, Fe-Zn system, and C
An electrode wire for wire electric discharge machining, further comprising at least one u-Fe-Zn-based intermetallic compound , and the balance being Cu and unavoidable impurities. 2. Zn in an amount of 34% by weight or more and 50% by weight or less, as an additive element, Al in an amount of 0.01% by weight or more and 1.0% by weight or less, and B, In, Ge, Sn, Ti, Mn, Fe. , Ni, M
At least one element selected from the group consisting of g, P, and Sb is 0.005 wt% or more and 4.0 wt% or less, and 0.05 wt% or more and 5.00 wt% as the total of additive elements. Contains so as to satisfy the following range, Cu-Zn system, Cu-Fe system, Fe-Zn system, Cu-F
e-Zn-based, Ti-Ni-based, and Al-Ni-based metals
An electrode wire for wire electric discharge machining, further comprising at least one kind of intermetallic compound , and the balance being Cu and inevitable impurities. 3. Zn of 34% by weight or more and 50% by weight or less, as an additive element, Si of 0.01% by weight or more and 1.0% by weight or less, B, In, Ge, Sn, Ti, Mn, Fe. , Ni, M
At least one element selected from the group consisting of g, P, and Sb is 0.005 wt% or more and 4.0 wt% or less, and 0.05 wt% or more and 5.00 wt% as the total of additive elements. Contains so as to satisfy the following range, Cu-Zn system, Cu-Fe system, Fe-Zn system, Cu-F
e-Zn-based, Ti- Ni-based, and Ni-Si-based metals
An electrode wire for wire electric discharge machining, further comprising at least one kind of intermetallic compound , and the balance being Cu and inevitable impurities. 4. Zn of 34 wt% or more and 50 wt% or less, Al as an additive element of 0.01 wt% or more and 1.0 wt% or less, and Si of 0.01 wt% or more and 1.0 wt% or less The following, B, In, Ge, Sn, Ti, Mn, Fe, Ni, M
At least one element selected from the group consisting of g, P, and Sb is 0.005 wt% or more and 4.0 wt% or less, and 0.05 wt% or more and 5.00 wt% as the total of additive elements. Contains so as to satisfy the following range, Cu-Zn system, Cu-Fe system, Fe-Zn system, Cu-F
e-Zn system, Ti-Ni system, Ni-Si system, Al-Si
Between Al-Ni-Si and Al-Ni-based metals
An electrode wire for wire electric discharge machining, further comprising at least one compound , and the balance being Cu and unavoidable impurities. 5. Zn in an amount of 34% by weight or more and 50% by weight or less; Ni as an additive element; 0.01% by weight or more and 2.0% by weight or less; B, Al, In, Si, Ge, Sn, Ti , Mn, F
0.005 wt% or more and 4.0 wt% or less of at least one element selected from the group consisting of e, Mg, P, and Sb, and 0.05 wt% or more and 5.00 wt% as a total of additive elements. Contains so as to satisfy the range of not more than wt%, Cu-Zn system, Cu-Fe system, Fe-Zn system, Cu-F
e-Zn system, Ti-Ni system, Ni-Si system, Al-Si
Between Al-Ni-Si and Al-Ni-based metals
An electrode wire for wire electric discharge machining, further comprising at least one compound , and the balance being Cu and unavoidable impurities. 6. Zn in an amount of 34 wt% or more and 50 wt% or less, as an additive element, Mn in an amount of 0.01 wt% or more and 1.0 wt% or less, B, Al, In, Si, Ge, Sn, Ti. , Fe, N
At least one element selected from the group consisting of i, P, and Sb is 0.005% by weight or more and 3.0% by weight or less, and as a total of additional elements, 0.02% by weight or more and 4.0% by weight Contains so as to satisfy the following range, Cu-Zn system, Cu-Fe system, Fe-Zn system, Cu-F
e-Zn system, Ti-Ni system, Ni-Si system, Al-Si
Between Al-Ni-Si and Al-Ni-based metals
An electrode wire for wire electric discharge machining, further comprising at least one compound , and the balance being Cu and unavoidable impurities. 7. Zn in an amount of 34 wt% or more and 50 wt% or less, Mg as an additive element in an amount of 0.05 wt% or more and 4.5 wt% or less, B, Al, In, Si, Ge, Sn, Ti , Fe, N
At least one element selected from the group consisting of i, P, and Sb is 0.005% by weight or more and 3.0% by weight or less, and 0.05% by weight or more and 5.0% by weight as the total of additional elements Contains so as to satisfy the following range, Cu-Zn system, Cu-Fe system, Fe-Zn system, Cu-F
e-Zn system, Ti-Ni system, Ni-Si system, Al-Si
Between Al-Ni-Si and Al-Ni-based metals
An electrode wire for wire electric discharge machining, further comprising at least one compound , and the balance being Cu and unavoidable impurities. 8. Zn of 34 wt% or more and 50 wt% or less, as additive elements, Mn of 0.01 wt% or more and 1.0 wt% or less, and Mg of 0.05 wt% or more and 4.5 wt% or less. The following, B, Al, In, Si, Ge, Sn, Ti, Fe, N
At least one element selected from the group consisting of i, P, and Sb is 0.005% by weight or more and 3.0% by weight or less, and 0.1% by weight or more and 5.0% by weight as a total of additional elements
Contains so as to satisfy the following range, Cu-Zn system, Cu-Fe system, Fe-Zn system, Cu-F
e-Zn system, Ti-Ni system, Ni-Si system, Al-Si
Between Al-Ni-Si and Al-Ni-based metals
An electrode wire for wire electric discharge machining, further comprising at least one compound , and the balance being Cu and unavoidable impurities. 9. Zn in an amount of 34% by weight or more and 50% by weight or less, and as an additive element, B, Al, In, Si, Ge, Sn, Ti, Mn, F
At least two elements selected from the group consisting of e, Ni, Mg, P, and Sb are contained so as to satisfy the range of 0.05 wt% or more and 5.00 wt% or less as the total of the additive elements. And, Cu-Zn system, Cu-Fe system, Fe-Zn system, Cu-F
e-Zn system, Ti-Ni system, Ni-Si system, Al-Si
Between Al-Ni-Si and Al-Ni-based metals
An electrode wire for wire electric discharge machining, further comprising at least one compound , and the balance being Cu and unavoidable impurities. 10. The melting point of the intermetallic compound is 500 ° C.
The temperature is not lower than 3000 ° C and not higher than 3000 ° C.
10. The electrode wire for wire electric discharge machining according to any one of 1 to 9. 11. The strength ratio at 200 ° C. ((200 ° C.
(Tensile strength at room temperature) / (tensile strength at room temperature) ×
100 % ) is 40% or more, The electrode wire for wire electric discharge machining according to any one of claims 1 to 10, wherein. 12. The electrode wire for wire electric discharge machining according to claim 1, wherein the content of Zn is more than 40% by weight and 45% by weight or less.