CN102227279A - End mill - Google Patents
End mill Download PDFInfo
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- CN102227279A CN102227279A CN2009801475700A CN200980147570A CN102227279A CN 102227279 A CN102227279 A CN 102227279A CN 2009801475700 A CN2009801475700 A CN 2009801475700A CN 200980147570 A CN200980147570 A CN 200980147570A CN 102227279 A CN102227279 A CN 102227279A
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- land
- notch
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- end mill
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
- B23C—MILLING
- B23C5/00—Milling-cutters
- B23C5/02—Milling-cutters characterised by the shape of the cutter
- B23C5/10—Shank-type cutters, i.e. with an integral shaft
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
- B23P—METAL-WORKING NOT OTHERWISE PROVIDED FOR; COMBINED OPERATIONS; UNIVERSAL MACHINE TOOLS
- B23P15/00—Making specific metal objects by operations not covered by a single other subclass or a group in this subclass
- B23P15/28—Making specific metal objects by operations not covered by a single other subclass or a group in this subclass cutting tools
- B23P15/34—Making specific metal objects by operations not covered by a single other subclass or a group in this subclass cutting tools milling cutters
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
- B23C—MILLING
- B23C2210/00—Details of milling cutters
- B23C2210/08—Side or top views of the cutting edge
- B23C2210/088—Cutting edges with a wave form
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
- B23C—MILLING
- B23C2220/00—Details of milling processes
- B23C2220/60—Roughing
- B23C2220/605—Roughing and finishing
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
- B23C—MILLING
- B23C2226/00—Materials of tools or workpieces not comprising a metal
- B23C2226/31—Diamond
- B23C2226/315—Diamond polycrystalline [PCD]
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
- B23C—MILLING
- B23C2226/00—Materials of tools or workpieces not comprising a metal
- B23C2226/37—Fibreglass
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- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Milling Processes (AREA)
Abstract
Disclosed is a router end mill which enables prevention of whitening of the cut surface, interlayer separation, and resin fusion during the milling, enables milling of FRP resin by fast rotation for a long time, and has an excellent durability. An odd number of lands (2) extending while meandering are formed by meandering grooves (1) between neighboring meandering grooves (1). First and second nicks (31, 32) forming apexes and arranged across the land width along a predetermined first direction (a1) are formed in each land of at least one pair of neighboring lands out of the odd number of lands (2). Finishing blades are formed on the other land (23) than the pair of lands out of the odd number of lands (2).
Description
Technical field
The milling cutter, the particularly front end that the present invention relates to use in the cutting that is cut part of FRP resin etc. are tack (channeling) end mill(ing) cutter of flush end or the end mill(ing) cutter that has drilling function (comprising radius end mill, ball end mill) that has blade at front end.
Background technology
The FRP(fiber-reinforced resin) because degree of specific gravity, elastic modelling quantity, fatigue strength and corrosion resistance is good, so except aircraft, boats and ships, automobile, also in each shaping resin of household appliances, sports goods etc., use.As the reinforcing fiber that in FRP, uses, generally be glass fibre (GFRP), but have more high-intensity carbon fiber to cooperate resin (CFRP), aramid fiber to cooperate resin (AFRP).
These various fibers cooperate resin because with cooperating the fiber solidified forming, if so with the processing of in the past the end mill(ing) cutter that has notch (for example with reference to patent documentation 1), albinism that the cutting face takes place or splitting are arranged then, because of deposited polished surface roughening of resin in the cutting or situation such as shorten life tools.
Particularly, deposited about above-mentioned resin, the pyroconductivity of FRP resin itself is the about 1/20th of for example carbon steel, compares very little with metal material.Therefore, the frictional heat that produces when cutting is not via cutting swarf and be cut the part heat radiation, and frictional heat accumulates in cutting edge easily and is cut in the part.At this moment, if above-mentioned " fluffing " takes place, then more difficult heat radiation, particularly frictional heat is gathered easily.And, if like this when cutting frictional heat gather, then become the resin heat fusing of FRP and change deposited state on the blade tip that is applied to cutting edge, so-called.The generation of deposited state brings obstruction, cutting face roughening as a result for the cutting function.Above-mentioned deposited state takes place when the cutting of the lower FRP resin of pyroconductivity easily, and the long cutting of being undertaken by the high speed rotation of cutting edge becomes difficult.
Patent documentation 1: the spy opens flat 2-198708 communique.
Summary of the invention
So, the purpose of this invention is to provide the deposited generation of the generation of a kind of albinism that suppresses the cutting face and splitting, the resin in preventing to cut, can realize the long cutting of being undertaken by the high speed rotation of FRP resin, end mill(ing) cutter with favorable durability.
(1) promptly, end mill(ing) cutter of the present invention by with front as blade, the clava of base end side as the rotating shaft S of shank constituted, according to the phase place that with rotating shaft S is the regulation at center be formed with the odd number bar from the front end of blade towards base end side on claval side face while reversing the helicla flute 1 that extends, between adjacent helicla flute 1, form odd number bar land 2 by this odd number bar helicla flute 1, it is characterized in that, at least one group of adjacent land group in odd number bar land 2 is (by first land 21, one or more groups land group that second land 22 constitutes) in, on each land that constitutes the land group, on the first direction a1 of regulation, spread all over first notch 31 at the top of margin width being formed with on first land 21 to have respectively, forming second notch 32 on second land 22 with the top that on the second direction a2 different, spreads all over margin width with above-mentioned first direction, on all the other lands 23 in odd number bar land 2 beyond the above-mentioned land group, be formed with the fine finishining sword.
If such structure, then pass through first notch of first land 21 of one group of land group of formation, second notch of second land 22, continue the discharge of the cutting swarf after different directions is cut or cut, so be difficult for residual cutting swarf on the part being cut.And, by first land 21, second land 22 during by the back, whenever the rotation of end mill(ing) cutter fine finishining sword 4 become when the discharge carried out to the cutting of different directions and cutting swarf, the fine finishining sword 4 by all the other lands 23 carries out fine finishining and handle by by bevel.This produces and carries out the identical action effect of situation that meticulous fine finishining continues the cutting of two directions all the time on one side, and produces inhibition all the time and cut the action effect of the rising of the frictional heat of bringing.
Thus, be difficult for " fluffing " takes place, can prevent " being cut the breach of thing ", can form exquisite polished surface more reliably, and be difficult for the deposited state that occurrence temperature rises and brings, the long cutting of being undertaken by the high speed rotation becomes easy.And, can suppress by the albinism of bevel and the splitting that is cut thing that constitutes by multilayer.
In addition,, compare the generation of the vibration (motility) in the time of can suppressing to rotate at a high speed with such in the past situation with many helicla flutes 1 and land by having odd number bar helicla flute 1 and land.This also helps the formation of exquisite polished surface and by the inhibition of the albinism of bevel, splitting.
In addition, two operations of the finishing step of the milling cutter by having fine finishining sword 4 in the past behind the cutting process that need carry out, at the end mill(ing) cutter of the notch by having all directions, with respect to this, structure according to the invention described above, cutting process and finishing step are finished by an operation, no longer need independent cutting process, working (machining) efficiency improves thus.
(2) in above-mentioned end mill(ing) cutter, preferably, the second direction a2 of the first direction a1 of the notch top 3t of first notch, the notch top 3t of second notch tilts with the angle of inclination that equates mutually axisymmetrically to the both sides that with rotating shaft S are the border respectively.
Promptly, the notch top 3t of first notch is along forming with the first direction that tiltangle tilts to an one-sided side with respect to rotating shaft S, and the second direction of the notch top 3t of second notch is along forming to another one-sided second direction that tilts with tiltangle with respect to rotating shaft S.
First notch and second notch tilt with rotating shaft S symmetry equal angles ground, blade in first land 21 and second land 22, be identical to the formation direction of the contact angle that is cut thing, relief angle, carry out the cutting of same efficiency continuously.Thus, carry out generation, the eliminating of cutting swarf symmetrically, can further suppress the generation of fluffing.
(3) in above-mentioned each end mill(ing) cutter, preferably, the fine finishining sword 4 of at least one all the other land 23 is many crystallizations diamond sintering swords.
By fine finishining sword 4 is made of other crystallization diamond sintering swords, can improve the fine finishining effect, further suppress the generation of fluffing and breach generation, can suppress the cutting burden that is cut part, the generation that suppresses albinism and splitting in addition.
In addition, contact successively by different pyroconductivity materials and to be cut on the part, frictional heat reduces effectively, can improve and suppress the effect that deposited state takes place.
And then, under situation with a plurality of all the other lands 23, for example make the structure that constitutes by many crystallizations diamond sintering sword by the fine finishining sword 4 of only inciting somebody to action some all the other lands 23 wherein, the fine finishining sword 4 of unlike material contacts successively and is being cut on the thing, can access thick fine finishining and thin accurately machined different fine finishining effect.
(4) in above-mentioned each end mill(ing) cutter, preferably, first notch 31 and second notch 32 be from as a side of the direction of rotation rear side of margin width 2w towards as another side of direction of rotation front side, notch top 3t shape height step-down, that implemented so-called back-off processing apart from rotating shaft.For example, if such structure, then each notch becomes the structure that forms the cross-sectional relief angle of looking of axle at its notch top 3t, can promote cutting swarf effective discharge, further suppress frictional heat and gather.
(5) in above-mentioned each end mill(ing) cutter, preferably, many helicla flutes 1 of formation are the groove width 1w that equates mutually, and to be formed on the rotating shaft be the center, with claval side face not on the phase position of five equilibrium.
If such structure, then each land axle is cross-sectional look in decentralized configuration on acyclic phase position, by form land in the position that is offset slightly from position, can prevent the generation of the resonance that the intrinsic frequency of end mill(ing) cutter is brought along claval circumference five equilibrium.Thus, no matter under any rotary speed, can both carry out the cutting of rotation at a high speed.
(6) preferably, at above-mentioned each the position of rotating shaft S direction of end mill(ing) cutter, all the other margin width 23w of the margin width 2w(of all the other lands 23) than each the margin width 2w(first margin width 21w, second margin width 22w of first land 21 and second land 22) any is all big.
If such structure, guarantee the time of contact that then 23 pairs of all the other lands in fine finishining cutting face is cut thing longlyer, fine finishining sword 4 is contacted on by bevel with period that the cutting period of first land 21, second land 22 staggers than the butt time of each notch of discharging with cutting and with cutting swarf.Therefore, can carry out the formation of polished surface more reliably, improve the polished surface roughness.
In addition, in above-mentioned, the margin width 2w(first margin width 21w, the second margin width 22w of first land 21 and second land 22) as described later embodiment be equal mutually like that, but in addition also can be for unequal mutually.In addition, when there is a plurality of land group like that in embodiment 3 as described later, can make a group first land 21, second land 22 is respectively and first land 21 of other groups, the different margin width of second land 22.Make like this under the unequal situation of the margin width 2w that has a plurality of lands, the period of cutting, becoming unequal, so produce different cutting effects according to land to the time of contact that is cut thing.
The present invention is by making structure as described above, by repeat successively that first notch, second notch, fine finishining sword 4 carry out to the contact that is cut thing, the albinism that suppresses the cutting face and the generation of splitting, can form polished surface more smoothly.In addition, the deposited generation of the resin in can preventing to cut, carry out the long cutting of rotation at a high speed of passing through of FRP resin, the end mill(ing) cutter with favorable durability can be provided.
Description of drawings
Fig. 1 is the perspective illustration of the end mill(ing) cutter of embodiments of the invention 1;
Fig. 2 be expression embodiment 1 end mill(ing) cutter each land configuration face key diagram;
Fig. 3 is the side-looking key diagram of the end mill(ing) cutter of embodiment 1;
Fig. 4 is that the axle of first notch in the end mill(ing) cutter of embodiment 1 is analysed and observe the part key diagram;
Fig. 5 is the perspective illustration of the end mill(ing) cutter of embodiments of the invention 2;
Fig. 6 be expression embodiment 2 end mill(ing) cutter each land configuration face key diagram;
Fig. 7 is the side-looking key diagram of the end mill(ing) cutter of embodiment 2;
Fig. 8 is the perspective illustration of the intermediate product when making the end mill(ing) cutter of embodiment 2;
Fig. 9 is the perspective illustration of the intermediate product when making the end mill(ing) cutter of embodiment 2;
Figure 10 be expression embodiment 3 end mill(ing) cutter each land configuration face key diagram;
Figure 11 is the side-looking key diagram of the end mill(ing) cutter of embodiment 4～6;
Figure 12 is that the axle of first notch in the end mill(ing) cutter of embodiment 4～6 is analysed and observe the part key diagram.
Description of reference numerals:
1: helicla flute;
2: land;
21: the first lands;
22: the second lands;
23: all the other lands;
2w: margin width;
21w: first margin width;
22w: second margin width;
23w: all the other margin widths;
First all the other lands 231;
Second all the other lands 232;
First direction a1;
31: the first notches;
Second direction a2;
32: the second notches;
Notch top 3t;
321: rake;
322: rake;
323: vertical component effect;
α: inclination angle;
4: the fine finishining sword;
40: clava;
41: helical groove;
42: sintered body;
43: many crystallizations diamond sintering portion;
51: central sword;
52: Zhou Ren;
S: rotating shaft.
The specific embodiment
Below, of the present invention with being used for implementing preferred embodiment with each figure explanation of representing as each embodiment.The end mill(ing) cutter of expression embodiments of the invention 1 in Fig. 1 to Fig. 4.Fig. 3 wherein represents the shaft section part enlarged drawing of notch, and Fig. 4 represents the intermediate product before cutting edge forms in the manufacture method of end mill(ing) cutter of embodiment 1.In addition, in Fig. 5, Fig. 6, represent respectively embodiment 2, embodiment 3 end mill(ing) cutter face front-end structure.
In any following embodiment, end mill(ing) cutter of the present invention all by with front as blade, the clava of base end side as the rotating shaft S of shank constituted, by on this clava, forming many helicla flutes 1, between helicla flute 1, form a plurality of lands.The formation number of these a plurality of helicla flutes 1, land is the odd number more than 3.
The odd number bar land 2 that forms with the phase intervals of regulation on claval circumference is made of the first adjacent land 21 and second land 22 and all the other lands 23 beyond their.
Constitute one group of land group by the first wherein adjacent land 21 and second land 22.
On first land 21, be formed with to have and on the first direction a1 of regulation, spread all over first notch 31 of the notch top 3t of margin width.First notch has the first notch top 3t that spreads all over margin width on the first direction of regulation.First direction is the direction that tilts with tilt angle alpha with respect to axial rotary one side in side-looking.
Second notch has the second notch top 3t that spreads all over margin width on the second direction of the regulation different with above-mentioned first direction.Have and spread all over the second notch top 3t to the margin width direction of the second direction inclination opposite with above-mentioned first direction with respect to rotating shaft S.First direction is different mutually with second direction.
And end mill(ing) cutter of the present invention has at least 1 group (one or more groups) land group in the odd number bar land 2 that forms around claval, and is formed with fine finishining sword 4 on all the other lands 23 beyond the above-mentioned land group in odd number bar land 2.
In the use of the end mill(ing) cutter of the invention described above, end mill(ing) cutter is inserted into to form porose be cut in the thing and it is rotated at a high speed by what the FRP resin constituted.Thus, can carry out the cutting of different both directions and the fine finishining in cutting face simultaneously, 3 operations of the other direction cutting process that can carry out a direction cutting process such in the past, that undertaken by a direction notch sword by an operation, is undertaken by other direction notch sword, the finishing step that undertaken by fine finishining sword 4.Below, each structure is described in detail.
(embodiment 1)
In the end mill(ing) cutter of embodiment 1, in Fig. 1, represent stereogram, in addition, expression (facing) and the helicla flute 1 of (side-looking) and structure key diagram of land 2 peripheries when observing when the front of blade is observed in Fig. 2 and Fig. 3 from the side.And the torsional direction of first notch of expression first land 21 is analysed and observe part and is amplified key diagram in Fig. 4, and, in Fig. 5 in the manufacture process of expression end mill(ing) cutter of the present invention the quarter of helicla flute 1 or notch 3 the diamond sintering state before establishing stereogram.
The end mill(ing) cutter of embodiment 1 front with the rotating shaft be the center separate 120 the degree central phase intervals (being meant the phase intervals of the middle position of each groove width 1w in the case) roughly equally spaced be formed with 3 helicla flutes 1, thus, 3 lands 2 of total that are made of one group of land group (the one group of land group that is made of first land 21 and second land 22) and all the other land 23 roughly equally spaced form.And, with the article one in 3 lands 2 as first land 21, with second as second land 22, with the 3rd as all the other lands 23, on first land 21, be formed with the first notch group of the notch top 3t with first direction a1, on second land 22, be formed with the second notch group of the notch top 3t with second direction a2, and on 1 all the other land 23, be formed with fine finishining sword 4 with many crystallizations diamond sintering portion 43.
The second direction a2 of the first direction a1 of the notch top 3t of first notch, the notch top 3t of second notch tilts with the angle of inclination that equates to the both sides that with rotating shaft S are the border respectively as shown in Figure 3 mutually axisymmetrically.In Fig. 3, the notch top 3t edge of first notch 31 forms with the first direction that inclination angle+α tilts to an one-sided side with respect to rotating shaft S, and the second direction of the notch top 3t of second notch is along one-sided with inclined angle alpha (the second direction formation of α) tilting to another with respect to rotating shaft S.Because first notch and second notch serve as that symmetry tilts with equal angles with rotating shaft S,, carry out the cutting of same efficiency continuously in first land 21 and second land 22 so blade is identical to the formation direction of the contact angle that is cut thing, relief angle.
(notch)
First notch 31 of first land 21 amplifies shown in the key diagram as the part of analysing and observe along torsional direction of Fig. 4, isosceles chevron by the lengthwise that extends equably along torsional direction constitutes, the bottom of a plurality of first notches is connected to each other, and is continuous on the torsional direction of first land 21.Second notch of second land 22 also forms identical size, identical shaped, uniform distances.Because two hypotenuses of the formation chevron of notch are direction expansion under the symmetrical forwards, backwards geosyncline in border with the notch top 3t of notch, so can be before and after torsional direction, promptly the prolonging direction of first land 21 does not have the cutting of bias.For example in the cross section of a notch, establish, then establish the side effect angular force is arranged to upright, become wearing and tearing or damaged reason in when cutting if certain of front or back approaches to stand vertically.In the present embodiment, because symmetric shape and identical size before and after first, second notch all made, so can carry out the less more uniform cutting of the bias of power, this has suppressed to the wearing and tearing burden of carrying out accurately machined fine finishining sword 4 simultaneously.
(back-off processing)
In addition, first notch and second notch form a side (direction of rotation front side) from margin width as shown in Figure 2 towards another side (direction of rotation rear side), notch top 3t height step-down apart from rotating shaft.This shape shows as the shape of having implemented so-called back-off processing.By the processing of this back-off, each notch becomes the structure that is formed with the cross-sectional relief angle of looking of axle at its notch top 3t, can promote the high efficiency discharge of cutting swarf and further suppresses frictional heat and gather.
(many crystallizations diamond sintering sword 43)
The fine finishining sword 4 of all the other lands 23 of Xing Chenging is for having many crystallizations diamond sintering sword of many crystallizations diamond sintering portion 43 in the bight in the present embodiment.It as shown in Figure 5, be the front end of periphery of preparing the clava 40 of the cemented carbide before be shaped be pre-formed helical groove 41 towards base end side, the position that is being formed with fine finishining sword 4, by carrying out sintering, be shaped sintered body 42(Fig. 9 of many crystallizations diamond sintering portion 43 integratedly after in this helical groove 41, burying many mat golds hard rock or ceramic powder underground), the mode that sets with the many crystallizations diamond sintering portion 43 with this sintered body 42 on the blade of fine finishining sword 4 forms groove shown in Figure 11 and notch 3.By fine finishining sword 4 is served as reasons structure that other crystallization diamond sintering swords constitute, form the higher fine finishining sword 4 of roughness of excelling in abrasion resistance, polished surface.
(margin width 2w)
The margin width 2w(first margin width 21w, the second margin width 22w of first land 21 of the end mill(ing) cutter of embodiment 1 and second land 22) on each position on the rotating shaft S, equate all the other margin width 23w of the margin width 2w(of all the other lands 23 of unique setting mutually) be margin width than the differential seat angle of above-mentioned first land 21 and all only big 1～2 degree of second margin width 22.More slightly than the time of contact that each notch 3 carries out by the fine finishining that fine finishining sword 4 is carried out, more emphasis ground carries out fine finishining in 1 cutting rotation, makes to be difficult for taking place the turned of each sword.
In addition, as other embodiments different, the margin width 2w(first margin width 21w, the second margin width 22w of the position of the rotating shaft S that also can make, first land 21 and second land 22 at above-mentioned end mill(ing) cutter with embodiment 1) not wide slightly structure.In the case, all the other margin width 23w of margin width 2w(of also preferred all the other lands 23) than the differential seat angle of above-mentioned first land 21 and all only big 1～2 degree of second margin width 22.For example notch top 3t towards the preceding extreme direction of end mill(ing) cutter equate mutually, all the other margin width 23w of margin width 2w(of all the other lands 23 of unique setting) than the margin width 2w(first margin width 21w, the second margin width 22w of these first lands 21 and second land 22) greatly.Other structures and embodiment 1 are same.
(embodiment 2)
To the end mill(ing) cutter of embodiment 2, in Fig. 6, represent stereogram, in addition, and in Fig. 7 and Fig. 8, (facing) and the helicla flute 1, the structure key diagram of land 2 of (side-looking) when observing when expression is observed from the front of blade from the side.Fig. 9 is the stereogram of the sintered body 42 in the manufacture process.
The end mill(ing) cutter of embodiment 2 front with the rotating shaft be the center separate 70 the degree～74 the degree center phase intervals (phase intervals of each groove width 1w middle position) roughly equally spaced be formed with 5 helicla flutes 1, thus, 5 lands 2 of total that are made of one group of land group and 3 all the other lands 23 are formed on and make on the not position of halving that each adjacent spaces increases and decreases slightly.And, with the article one in 3 lands 2 as first land 21, with second as second land 22, with the 3rd to the 5th as first all the other lands 231, second all the other lands 232, the 3rd all the other lands 233.On first land 21, be formed with the first notch group of the notch top 3t with first direction a1, on second land 22, be formed with the second notch group of the notch top 3t with second direction a2, and in 3 all the other lands 23, be formed with the fine finishining sword 4 that forms by many crystallizations diamond sintering on first all the other lands 231 and second all the other lands 232.
(many crystallizations diamond sintering sword 43)
The fine finishining sword 4 of first, second all the other lands 231,232 except the 3rd all the other lands 233 is respectively many crystallizations diamond sintering sword in three all the other lands 23 of Xing Chenging in the present embodiment.It is to prepare the front end of periphery of the clava 40 by the superhard system before be shaped towards base end side, being pre-formed the phase difference that leaves a center on the position that forms fine finishining sword 4 is two helical grooves 41 of 72 degree, carry out sintering after in each helical groove 41, burying many mat golds hard rock or ceramic powder underground, integrally formed while the sintered body 42(Fig. 9 that reverses the portion of crystallization diamond sintering more than two 43 of extending), on this sintered body 42, form groove 1 and notch 3, so that many crystallizations diamond sintering portion 43 is provided in first respectively, second all the other lands 231, structure on the blade of each fine finishining sword 4 of 232.In embodiment 2, make the structure that constitutes by many crystallizations diamond sintering sword for two with the direction of rotation front side in 3 fine finishining swords 4 with many crystallizations diamond sintering portion 43, when cutting, carry out fine finishining earlier continuously successively, then carry out the processing of the fine finishining sword of superhard system by two diamond sintering swords.Thus, form the excelling in abrasion resistance of fine finishining sword 4, the fine finishining sword 4 of fine finishining better effects if.
(the not five equilibrium of helicla flute 1)
Many the helicla flutes 1 that form in the end mill(ing) cutter of embodiment 2 are the groove width 1w that mutually equates, and are the center with the rotating shaft, are formed on claval side face not on the phase position of five equilibrium.If such structure, then each land axle is cross-sectional look in decentralized configuration on acyclic phase position, by forming land, can prevent the generation of the resonance that the intrinsic frequency of end mill(ing) cutter causes in the position that is offset slightly from position along claval circumference five equilibrium.Thus, under any rotary speed, can both carry out the cutting of rotation at a high speed.
(margin width 2w)
In addition, as the form different with embodiment 1, position at the rotating shaft S of end mill(ing) cutter, the margin width 2w(first margin width 21w, the second margin width 22w of first land 21 and second land 22) equate all the other margin width 23w of margin width 2w(of 3 all the other lands 23 beyond them mutually) equate mutually.The margin width 2w(first margin width 21w, the second margin width 22w of above-mentioned first land 21 and second land 22) than each margin width 2w(23w of 3 all the other lands 23) big.By making margin width 2w that is formed with notch and the margin width 2w(23w that is formed with the fine finishining sword like this) unequal, the generation of the resonance when suppressing to rotate at a high speed, by in 1 circle rotation, repeatedly repeating the fine finishining of respectively cutting the short time, on one side fair cutting face cuts on one side than first, second direction.Thus, alleviated, become the good structure of durability to the burden of notch.Other structures and embodiment 1 are same.
(embodiment 3)
About the end mill(ing) cutter of embodiment 3, in Figure 10 expression when the front of blade is observed helicla flute 1 and the structure key diagram of land 2 peripheries.
In the end mill(ing) cutter of embodiment 3, front with the rotating shaft be the center separate 70 the degree～74 the degree center phase intervals (phase intervals of each groove width 1w middle position) roughly equally spaced be formed with 5 helicla flutes 1, thus, 5 lands 2 of total that are made of two groups of land groups of A, B and 1 all the other land 23 are formed on the not position of halving that has increased and decreased each adjacent spaces slightly.With first land 21 of the article one in 5 lands 2 of total as first group, with second land 22 of second as first group, with the 3rd first land 21 as the 2nd group, with the 4th second land 22 as the 2nd group, and with the 5th as all the other lands 23.A group, B group are formed with the first notch group of the notch top 3t with first direction a1 respectively on first land 21, be formed with the second notch group of the notch top 3t with second direction a2 on second land 22.And, on 1 all the other land 23, be formed with the fine finishining sword 4 that forms by many crystallizations diamond sintering.
Margin width 2w be on first land 21 that constitutes each land group and second land 22, equate mutually, each land 2 of the land group of A group is the margin width 2w longer than each land 2 of the land group of B group.Contact is earlier discharged bigger cutting swarf at first, second land 21,22 that is cut A group on the thing, that be in the direction of rotation rear side in rotary cutting, so by making margin width 2w for the margin width than group leader B, make the discharge of cutting swarf become easy.
According to present embodiment, in the cutting of a circle rotation, after the two directions cutting of A group, then carry out the two directions cutting of B group, carry out fine finishining then by many crystallizations diamond sintering sword.Other structures and embodiment 1 are same.
(embodiment 4～6)
(other action effects)
End mill(ing) cutter of the present invention is by said structure, becomes the cutter of the machining of the FRP composite wood that is suitable for the FRP reinforcing fiber compound, plays the following effects effect.
First notch of the first direction that tilts symmetrically by rotating shaft, second notch of second direction, suppress the generation of following " fluffing ", " breach " " burr ", by by a series of cutting step of first cutting, second cutting and the repetition successively of the fine finishining step of after this cutting step, carrying out, fine carry out on one side fine finishining cutting fine at every turn equably on one side at every turn, suppress thus fine finishining FRP resin " albinism " generation and formed the FRP of multilayer " splitting ".
By in once (embodiment 1,3) or repeatedly must clip once (embodiment 1,2) or repeatedly fine finishining step after (embodiment 2) cutting step, step is cut successively repeatedly in one side and the fine finishining step advances cutting on one side, the release of promotion frictional heat with the contacting of fine finishining sword 4 time.In addition, even implement the processing of so-called back-off, also suppress frictional heat and accumulate in and be cut in thing and the end mill(ing) cutter self.Thus, can cut for a long time.
Be formed with the land of fine finishining sword 4 with the group of land owing to the cutting that constitutes adjacent to cutting edge by many groups symmetric shape, so being cut thing improves to the sword contact of cutting with land, even carry out high-speed cutting processing in addition, also can suppress the wearing and tearing of the notch of first, second land 22, become the good cutter of durability.
By a part of land is not disposed or a part of fine finishining is formed wide cut with land in five equilibrium ground, the resonance that can avoid intrinsic frequency to cause, meanwhile, can strengthen fine finishining sword 4 the fine finishining function, make fine finishining sword 4 parts become more nonabradable structure.
The operation of 3 operations of first cutting process that continuing in the past undertaken by first notch, second cutting process that is undertaken by second notch, the finishing step that undertaken by fine finishining sword 4 no longer needs, and comprises that the step of setting of preparation, the machinery of the rotation sword that each operation is used is just finished by a step that is made of cutting-accurately machined while operation of being undertaken by end mill(ing) cutter of the present invention.Thus, can carry out high efficiency manufacturing.
Be easier to, do not need to prepare many rotation swords owing to make, so can obtain cheaply.
In addition, the concrete structure of each several part is not limited to the foregoing description, can carry out without departing from the spirit and scope of the present invention the unit of each embodiment extraction, each unit combination or to the various distortion such as replacement of equivalent.
Claims (6)
1. end mill(ing) cutter, by with front as blade, the clava of base end side as the rotating shaft (S) of shank constituted, according to the phase place that with rotating shaft (S) is the regulation at center be formed with the odd number bar from the front end of blade towards base end side on claval side face while reversing the helicla flute (1) that extends, between adjacent helicla flute (1), form odd number bar land (2) by this odd number bar helicla flute (1), it is characterized in that, odd number bar land (2) is made of at least one group of adjacent land group, on each land that constitutes this land group, be formed with respectively and have first notch (31) that on the first direction (a1) of regulation, spreads all over the top of margin width, and have second notch (32) that on the second direction (a2) different, spreads all over the top of margin width with above-mentioned first direction, be formed with the fine finishining sword on all the other lands (23) in odd number bar land (2) beyond the above-mentioned land group.
2. end mill(ing) cutter as claimed in claim 1, it is characterized in that the second direction (a2) at the top of the first direction at the top of first notch (a1), second notch tilts with the angle of inclination that equates mutually axisymmetrically to the both sides that with rotating shaft (S) are the border respectively.
3. end mill(ing) cutter as claimed in claim 1 or 2 is characterized in that, the fine finishining sword (4) of at least one all the other land (23) is many crystallizations diamond sintering sword.
4. as each described end mill(ing) cutter in the claim 1～3, it is characterized in that first notch (31) and second notch (32) are from a side of the margin width shape towards the height step-down of another side, distance from top rotating shaft (S).
5. as each described end mill(ing) cutter in the claim 1～4, it is characterized in that many helicla flutes (1) are the groove widths (1w) that mutually equates, and be the center, be formed on claval side face not on the phase position of five equilibrium with the rotating shaft.
6. as each described end mill(ing) cutter in the claim 1～5, it is characterized in that, on each position of rotating shaft (S) direction, the margin width (2w) of all the other lands (23) forms greatlyyer than each margin width (2w) of first land (21) and second land (22).
Applications Claiming Priority (3)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP2008303169 | 2008-11-27 | ||
| JP2008-303169 | 2008-11-27 | ||
| PCT/JP2009/070064 WO2010061933A1 (en) | 2008-11-27 | 2009-11-27 | End mill |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN102227279A true CN102227279A (en) | 2011-10-26 |
Family
ID=42225802
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2009801475700A Pending CN102227279A (en) | 2008-11-27 | 2009-11-27 | End mill |
Country Status (4)
| Country | Link |
|---|---|
| JP (2) | JP5610292B2 (en) |
| CN (1) | CN102227279A (en) |
| CA (1) | CA2741681A1 (en) |
| WO (1) | WO2010061933A1 (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103071840A (en) * | 2013-01-31 | 2013-05-01 | 哈尔滨理工大学 | Pineapple end mill for carbon fiber reinforced composite |
| CN104249310A (en) * | 2013-06-25 | 2014-12-31 | 肖特公开股份有限公司 | Tool crown and glass or glass ceramic product which can be produced with the tool crown |
| CN105983719A (en) * | 2014-12-23 | 2016-10-05 | 张新添 | Spiral feed type drilling and milling cutter |
| CN113199068A (en) * | 2021-03-31 | 2021-08-03 | 成都飞机工业（集团）有限责任公司 | Machining method for sharp corner structure of glass fiber reinforced plastic part |
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| US9232952B2 (en) | 2012-04-16 | 2016-01-12 | Medtronic Ps Medical, Inc. | Surgical bur with non-paired flutes |
| DE102012019804B4 (en) * | 2012-10-10 | 2021-05-12 | Hufschmied Zerspanungssysteme Gmbh | Cutting tools, in particular end mills for processing fiber-reinforced materials |
| US9883873B2 (en) | 2013-07-17 | 2018-02-06 | Medtronic Ps Medical, Inc. | Surgical burs with geometries having non-drifting and soft tissue protective characteristics |
| US10335166B2 (en) | 2014-04-16 | 2019-07-02 | Medtronics Ps Medical, Inc. | Surgical burs with decoupled rake surfaces and corresponding axial and radial rake angles |
| US9955981B2 (en) | 2015-03-31 | 2018-05-01 | Medtronic Xomed, Inc | Surgical burs with localized auxiliary flutes |
| US10265082B2 (en) | 2015-08-31 | 2019-04-23 | Medtronic Ps Medical, Inc. | Surgical burs |
| DE102015119355B4 (en) | 2015-11-10 | 2018-09-20 | Albert Knebel Holding Gmbh | cutting tool |
| DE102016006995B3 (en) * | 2016-06-09 | 2017-10-19 | Hufschmied Zerspanungssysteme Gmbh | Electrode graphite cutter |
| WO2018198930A1 (en) * | 2017-04-27 | 2018-11-01 | 京セラ株式会社 | Rotary tool and method for manufacturing cut workpiece |
| DE102019211724A1 (en) * | 2019-08-05 | 2021-02-11 | Gühring KG | END MILL |
| CN118785987A (en) * | 2023-02-01 | 2024-10-15 | 住友电工硬质合金株式会社 | Cutting tool |
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- 2009-11-27 CA CA2741681A patent/CA2741681A1/en not_active Abandoned
- 2009-11-27 WO PCT/JP2009/070064 patent/WO2010061933A1/en active Application Filing
- 2009-11-27 JP JP2010540534A patent/JP5610292B2/en not_active Expired - Fee Related
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| JPS5269086A (en) * | 1975-12-06 | 1977-06-08 | Mitsubishi Metal Corp | Face milling cutter |
| JPS57138522A (en) * | 1981-02-16 | 1982-08-26 | Sumitomo Electric Ind Ltd | Compound rotary cutter |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN103071840A (en) * | 2013-01-31 | 2013-05-01 | 哈尔滨理工大学 | Pineapple end mill for carbon fiber reinforced composite |
| CN104249310A (en) * | 2013-06-25 | 2014-12-31 | 肖特公开股份有限公司 | Tool crown and glass or glass ceramic product which can be produced with the tool crown |
| CN104249310B (en) * | 2013-06-25 | 2018-02-13 | 肖特公开股份有限公司 | Tack cutter and the glass or glass and ceramic product of the tack cutter manufacture can be used |
| CN105983719A (en) * | 2014-12-23 | 2016-10-05 | 张新添 | Spiral feed type drilling and milling cutter |
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| CN113199068A (en) * | 2021-03-31 | 2021-08-03 | 成都飞机工业（集团）有限责任公司 | Machining method for sharp corner structure of glass fiber reinforced plastic part |
Also Published As
| Publication number | Publication date |
|---|---|
| WO2010061933A1 (en) | 2010-06-03 |
| CA2741681A1 (en) | 2010-06-03 |
| JPWO2010061933A1 (en) | 2012-04-26 |
| JP2014148041A (en) | 2014-08-21 |
| JP5610292B2 (en) | 2014-10-22 |
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Application publication date: 20111026 |