CN108214958B - Coated cutter shaft with diamond abrasive particle layer and manufacturing method thereof - Google Patents
Coated cutter shaft with diamond abrasive particle layer and manufacturing method thereof Download PDFInfo
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- CN108214958B CN108214958B CN201810181796.3A CN201810181796A CN108214958B CN 108214958 B CN108214958 B CN 108214958B CN 201810181796 A CN201810181796 A CN 201810181796A CN 108214958 B CN108214958 B CN 108214958B
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- cutter shaft
- brazing
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- 239000010432 diamond Substances 0.000 title claims abstract description 164
- 229910003460 diamond Inorganic materials 0.000 title claims abstract description 164
- 239000002245 particle Substances 0.000 title claims abstract description 150
- 238000004519 manufacturing process Methods 0.000 title claims abstract description 23
- 238000005219 brazing Methods 0.000 claims abstract description 97
- 238000000034 method Methods 0.000 claims abstract description 37
- MTPVUVINMAGMJL-UHFFFAOYSA-N trimethyl(1,1,2,2,2-pentafluoroethyl)silane Chemical compound C[Si](C)(C)C(F)(F)C(F)(F)F MTPVUVINMAGMJL-UHFFFAOYSA-N 0.000 claims abstract description 37
- 239000000463 material Substances 0.000 claims description 29
- 239000006061 abrasive grain Substances 0.000 claims description 19
- 229910045601 alloy Inorganic materials 0.000 claims description 13
- 239000000956 alloy Substances 0.000 claims description 13
- 238000005240 physical vapour deposition Methods 0.000 claims description 12
- 229910000679 solder Inorganic materials 0.000 claims description 9
- 238000010438 heat treatment Methods 0.000 claims description 8
- 239000000203 mixture Substances 0.000 claims description 8
- PXHVJJICTQNCMI-UHFFFAOYSA-N Nickel Chemical compound [Ni] PXHVJJICTQNCMI-UHFFFAOYSA-N 0.000 claims description 6
- 238000002156 mixing Methods 0.000 claims description 5
- RTAQQCXQSZGOHL-UHFFFAOYSA-N Titanium Chemical compound [Ti] RTAQQCXQSZGOHL-UHFFFAOYSA-N 0.000 claims description 4
- 239000004519 grease Substances 0.000 claims description 4
- VYZAMTAEIAYCRO-UHFFFAOYSA-N Chromium Chemical compound [Cr] VYZAMTAEIAYCRO-UHFFFAOYSA-N 0.000 claims description 3
- RYGMFSIKBFXOCR-UHFFFAOYSA-N Copper Chemical compound [Cu] RYGMFSIKBFXOCR-UHFFFAOYSA-N 0.000 claims description 3
- BQCADISMDOOEFD-UHFFFAOYSA-N Silver Chemical compound [Ag] BQCADISMDOOEFD-UHFFFAOYSA-N 0.000 claims description 3
- 229910052802 copper Inorganic materials 0.000 claims description 3
- 239000010949 copper Substances 0.000 claims description 3
- 229910052759 nickel Inorganic materials 0.000 claims description 3
- 229910052709 silver Inorganic materials 0.000 claims description 3
- 239000004332 silver Substances 0.000 claims description 3
- 238000005520 cutting process Methods 0.000 abstract description 35
- 239000011521 glass Substances 0.000 abstract description 33
- 229910052751 metal Inorganic materials 0.000 abstract description 10
- 239000002184 metal Substances 0.000 abstract description 10
- 239000002994 raw material Substances 0.000 abstract description 3
- 238000000151 deposition Methods 0.000 abstract 1
- 230000008569 process Effects 0.000 description 7
- 150000002500 ions Chemical class 0.000 description 4
- 239000010936 titanium Substances 0.000 description 4
- QVGXLLKOCUKJST-UHFFFAOYSA-N atomic oxygen Chemical compound [O] QVGXLLKOCUKJST-UHFFFAOYSA-N 0.000 description 3
- 238000006243 chemical reaction Methods 0.000 description 3
- 238000009826 distribution Methods 0.000 description 3
- 229910052760 oxygen Inorganic materials 0.000 description 3
- 239000001301 oxygen Substances 0.000 description 3
- 239000000126 substance Substances 0.000 description 3
- CURLTUGMZLYLDI-UHFFFAOYSA-N Carbon dioxide Chemical compound O=C=O CURLTUGMZLYLDI-UHFFFAOYSA-N 0.000 description 2
- XEEYBQQBJWHFJM-UHFFFAOYSA-N Iron Chemical compound [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 description 2
- 239000011248 coating agent Substances 0.000 description 2
- 238000000576 coating method Methods 0.000 description 2
- 238000010891 electric arc Methods 0.000 description 2
- 238000000227 grinding Methods 0.000 description 2
- 230000002045 lasting effect Effects 0.000 description 2
- VNWKTOKETHGBQD-UHFFFAOYSA-N methane Chemical compound C VNWKTOKETHGBQD-UHFFFAOYSA-N 0.000 description 2
- PWHULOQIROXLJO-UHFFFAOYSA-N Manganese Chemical compound [Mn] PWHULOQIROXLJO-UHFFFAOYSA-N 0.000 description 1
- 229910000831 Steel Inorganic materials 0.000 description 1
- ATJFFYVFTNAWJD-UHFFFAOYSA-N Tin Chemical compound [Sn] ATJFFYVFTNAWJD-UHFFFAOYSA-N 0.000 description 1
- 238000005299 abrasion Methods 0.000 description 1
- 230000009471 action Effects 0.000 description 1
- 229910002092 carbon dioxide Inorganic materials 0.000 description 1
- 239000001569 carbon dioxide Substances 0.000 description 1
- 230000003247 decreasing effect Effects 0.000 description 1
- 238000007599 discharging Methods 0.000 description 1
- 239000000428 dust Substances 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 230000008020 evaporation Effects 0.000 description 1
- 238000001704 evaporation Methods 0.000 description 1
- 239000000945 filler Substances 0.000 description 1
- 230000004907 flux Effects 0.000 description 1
- 239000007789 gas Substances 0.000 description 1
- 239000008187 granular material Substances 0.000 description 1
- 229910052742 iron Inorganic materials 0.000 description 1
- 230000008018 melting Effects 0.000 description 1
- 238000002844 melting Methods 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000007254 oxidation reaction Methods 0.000 description 1
- 238000004321 preservation Methods 0.000 description 1
- 239000011343 solid material Substances 0.000 description 1
- 238000004544 sputter deposition Methods 0.000 description 1
- 239000010959 steel Substances 0.000 description 1
- 238000006467 substitution reaction Methods 0.000 description 1
- 239000000758 substrate Substances 0.000 description 1
- 238000011282 treatment Methods 0.000 description 1
- WFKWXMTUELFFGS-UHFFFAOYSA-N tungsten Chemical compound [W] WFKWXMTUELFFGS-UHFFFAOYSA-N 0.000 description 1
- 239000012808 vapor phase Substances 0.000 description 1
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B28—WORKING CEMENT, CLAY, OR STONE
- B28D—WORKING STONE OR STONE-LIKE MATERIALS
- B28D7/00—Accessories specially adapted for use with machines or devices of the preceding groups
-
- C—CHEMISTRY; METALLURGY
- C23—COATING METALLIC MATERIAL; COATING MATERIAL WITH METALLIC MATERIAL; CHEMICAL SURFACE TREATMENT; DIFFUSION TREATMENT OF METALLIC MATERIAL; COATING BY VACUUM EVAPORATION, BY SPUTTERING, BY ION IMPLANTATION OR BY CHEMICAL VAPOUR DEPOSITION, IN GENERAL; INHIBITING CORROSION OF METALLIC MATERIAL OR INCRUSTATION IN GENERAL
- C23C—COATING METALLIC MATERIAL; COATING MATERIAL WITH METALLIC MATERIAL; SURFACE TREATMENT OF METALLIC MATERIAL BY DIFFUSION INTO THE SURFACE, BY CHEMICAL CONVERSION OR SUBSTITUTION; COATING BY VACUUM EVAPORATION, BY SPUTTERING, BY ION IMPLANTATION OR BY CHEMICAL VAPOUR DEPOSITION, IN GENERAL
- C23C14/00—Coating by vacuum evaporation, by sputtering or by ion implantation of the coating forming material
- C23C14/06—Coating by vacuum evaporation, by sputtering or by ion implantation of the coating forming material characterised by the coating material
- C23C14/0635—Carbides
Landscapes
- Chemical & Material Sciences (AREA)
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Materials Engineering (AREA)
- Metallurgy (AREA)
- Organic Chemistry (AREA)
- Polishing Bodies And Polishing Tools (AREA)
Abstract
The application provides a coated cutter shaft with a diamond abrasive particle layer, which comprises a cutter shaft body and the diamond abrasive particle layer fixedly arranged on the surface of the cutter shaft body, wherein the coated cutter shaft has higher holding force on a cutter wheel, and compared with a common metal cutter shaft, the coated cutter shaft with the diamond abrasive particle layer has good wear resistance and long service life, and the cutter wheel mounted by using the coated cutter shaft is more stable in cutting glass. The application also provides a method for manufacturing the coated arbor, in particular to a method for brazing a brazing sub-layer on the surface of the arbor body and then physically vapor depositing a titanium carbide sub-layer on the brazing sub-layer, wherein the method has wide sources of raw materials, the method provided by the application can be used for uniformly brazing diamond abrasive particles on the surface of the cutter shaft body, and the titanium carbide sub-layer can be uniformly arranged on the surface of the brazing sub-layer, so that the method is simple and convenient, the condition is mild, and the diamond abrasive particles are firmly and stably in the brazing sub-layer and the titanium carbide sub-layer.
Description
Technical Field
The application belongs to the field of diamond grinding tools, and particularly relates to a coated cutter shaft with a diamond abrasive particle layer and a manufacturing method thereof.
Background
The cutter body for cutting glass mainly comprises a cutter wheel, a cutter shaft and a cutter rest, wherein the cutter wheel with the cutting function is arranged on the cutter rest through the cutter shaft, the cutter shaft is arranged on the cutter rest, and the cutter wheel rotates around the cutter shaft along with the movement of the cutter body on the surface of glass, so that scratches are formed on the surface of the glass, and then the glass is cut through other treatments.
The cutter shaft is usually made of hard metal, alloy or PCD material, glass scraps generated in the glass cutting process can enter a gap between the cutter shaft and the cutter wheel, and the glass scraps clamped between the cutter shaft and the cutter wheel abrade the metal cutter shaft or the PCD cutter shaft along with the rotation of the cutter wheel, so that the running track of the cutter wheel deviates from a straight line, and further the cutting precision and the cutting quality are reduced.
Therefore, development of a cutter shaft which is strong in wear resistance and low in price is desired.
Disclosure of Invention
In order to solve the problem of poor wear resistance of a cutter shaft, the application provides a coated cutter shaft with diamond abrasive particle layers, which comprises a cutter shaft body and the diamond abrasive particle layers fixedly arranged on the surface of the cutter shaft body, wherein the exposed heights of diamond abrasive particles in the diamond abrasive particle layers are similar, and at least one diamond abrasive particle layer can be arranged between the diamond abrasive particle layers and the cutter shaft body. The application also provides a method for preparing the coated cutter shaft, which comprises the steps of brazing a brazing sub-layer on the cutter shaft body, and preparing a titanium carbide layer on the brazing layer by using a physical vapor deposition method.
The application aims to provide a coated cutter shaft with a diamond abrasive particle layer, which comprises the following components: the cutter shaft comprises a cutter shaft body 1 and a diamond abrasive particle layer 2 arranged on the surface of the cutter shaft body 1, wherein the diamond abrasive particle layer 2 comprises a brazing sub-layer 21 brazed on the cutter shaft body 1, a titanium carbide sub-layer 22 arranged on the brazing sub-layer 21 through a physical vapor deposition method and diamond abrasive particles 23 inlaid in the brazing sub-layer 21 and the titanium carbide sub-layer 22, and the outer ends of the diamond abrasive particles 23 extend out of the titanium carbide sub-layer 22.
In one implementation, the particle size of the diamond abrasive particles 23 is 5-50 μm, the tolerance range of the particle size is ±2 μm, the length L1 of the diamond abrasive particles 23 extending out of the brazing sub-layer 21 is 40% -60% of the thickness D of the diamond abrasive particle layer 2, and the thickness D of the diamond abrasive particle layer 2 is the distance between the outer end of the diamond abrasive particles 23 and the side of the brazing sub-layer 21 close to the arbor body 1.
In one possible manner, the outer diameter of the coated arbor is 0.77-0.79 mm, wherein the outer diameter of the coated arbor is calculated by the diameter of the largest circumscribed circle where the outer ends of the diamond abrasive particles are located.
In one implementation, the brazing material used to manufacture the brazing sub-layer 21 is selected from one of copper-based alloy solders containing active elements, silver-based alloy solders containing active elements, and nickel-based alloy solders containing active elements, wherein the active elements include titanium element and chromium element.
Because the hardness of diamond abrasive particles is great, the cutting wheel install in behind the coating arbor, in the clearance between diamond abrasive particles can be got into to the glass bits that produces in cutting glass in-process, along with the continuous rotation of cutting wheel, the glass bits are smashed into the glass bits that the particle diameter is less by diamond abrasive particles, compare in simple metal arbor, alloy arbor or PCD arbor, the glass bits after being smashed cause wearing and tearing very little to diamond abrasive particles, in addition, most glass bits can be discharged the cutting wheel hole, thereby the glass bits that cutting glass produced can not cause the hindrance to the rotation of cutting wheel. Therefore, the coated cutter shaft provided by the application can provide lasting high cutting precision and excellent cutting quality in the process of cutting glass.
The diamond abrasive particles in the partially exposed state are arranged in the diamond braze layer, and the friction coefficient between the diamond abrasive particles and the cutter wheel is larger than that between the common metal cutter shaft and the cutter wheel, so that the coated cutter shaft provided by the embodiment of the application has higher holding force on the cutter wheel. The titanium carbide sub-layer further strengthens the bonding strength between the brazing material and the diamond abrasive particles, and strengthens the holding force of the brazing material on the diamond abrasive particles, so that the diamond abrasive particles are embedded in the brazing sub-layer more firmly and are not easy to fall off. Meanwhile, compared with a common metal cutter shaft, an alloy cutter shaft or a PCD cutter shaft, the coated cutter shaft with the diamond abrasive particle layer has good wear resistance and long service life, and the cutter wheel arranged by using the coated cutter shaft is more stable for cutting glass; compared with PCD (polycrystalline diamond) cutter shafts, the coated cutter shafts provided by the embodiment of the application are low in price and high in fracture resistance.
In one possible manner, a plurality of diamond abrasive particle layers 2 may be provided on the surface of the arbor body 1.
The application also provides a method for manufacturing the coated cutter shaft, which comprises the following steps:
Step 1, pretreating a cutter shaft body 1, removing surface grease and other dirt, and uniformly mixing diamond abrasive particles and brazing materials to prepare a mixture;
step 2, mounting the cutter shaft body 1 treated in the step 1 in a brazing mold, wherein a gap exists between the cutter shaft body 1 and the brazing mold, and adding the mixture prepared in the step 1 into the gap;
Step 3, in an aerobic environment, heating the die provided with the cutter shaft body 1 and the brazing material and obtained in the step 2;
step 4, continuously heating the workpiece obtained in the step 3 in an oxygen-free environment, such as a vacuum furnace;
step 5, manufacturing a titanium carbide sub-layer on the surface of the workpiece obtained in the step 4 by using a physical vapor deposition method;
And 6, removing the titanium carbide deposited on the surface of the diamond abrasive particles in the workpiece obtained in the step 5, exposing the part of the diamond abrasive particles extending out of the titanium carbide sublayer, and enabling the outer diameter of the prepared coated cutter shaft to be uniform.
In one possible manner, the weight ratio of diamond abrasive particles to braze is 1 (3-30).
In one realizable mode, in the step 3, the die provided with the cutter shaft body (1) and the brazing material and obtained in the step 2 is heated to 50-150 ℃ and kept at the temperature for 5-10 min.
In one possible mode, in step 4, the workpiece obtained in step 3 is continuously heated to 800-1100 ℃ and kept at that temperature for 10-60 s.
In one possible manner, after steps 1 to 6 are completed, steps 1 to 6 are continued on the surface of the diamond abrasive particle layer, and a coated arbor having multiple diamond abrasive particle layers can be obtained.
The diamond has larger hardness, so that the wear resistance of the coated cutter shaft is obviously improved, glass scraps clamped between the coated cutter shaft and the cutter wheel can be crushed into scraps with smaller particle sizes through the diamond abrasive particles, the cutting is smoother, the abrasion of the glass scraps to the coated cutter shaft can be further reduced, and the cutting precision and the cutting quality are further improved.
The method for manufacturing the coated arbor has the advantages that the sources of the used raw materials are wide, the diamond abrasive particles can be uniformly brazed on the surface of the arbor body by using the method provided by the application, the titanium carbide sub-layer can be uniformly arranged on the surface of the brazing sub-layer, and the method is simple and convenient, the condition is mild, and the diamond abrasive particles are firmly and stably in the brazing sub-layer and the titanium carbide sub-layer.
According to the embodiment of the application, brazing is realized through chemical reaction between the diamond abrasive particles and the brazing material, and meanwhile, the brazing sub-layer further improves the bonding strength of the diamond abrasive particles and the brazing sub-layer, so that the risk of falling of the diamond abrasive particles in the using process is reduced, the high-precision production requirement of a coated cutter shaft process is realized, and the production cost of the coated cutter shaft is reduced.
Drawings
Fig. 1 is a cross-sectional view of a coated arbor with a diamond abrasive layer according to an embodiment of the present application;
Fig. 2 is a cross-sectional view of another coated arbor with a layer of diamond abrasive particles according to an embodiment of the present application.
Description of the reference numerals
1-Arbor body, 2-diamond abrasive particle layer, 21-brazing sub-layer, 22-titanium carbide sub-layer, 23-diamond abrasive particle.
Detailed Description
The following description of the embodiments of the present invention will be made clearly and completely with reference to the accompanying drawings, in which it is apparent that the embodiments described are only some embodiments of the present invention, but not all embodiments. All other embodiments, which can be made by those skilled in the art based on the embodiments of the invention without making any inventive effort, are intended to be within the scope of the invention.
The present invention is described in detail below.
Fig. 1 is a cross-sectional view of a coated arbor with a diamond abrasive layer according to an embodiment of the present application, with reference to fig. 1, the coated arbor includes: the diamond abrasive particle cutter comprises a cutter shaft body 1 and a diamond abrasive particle layer 2 arranged on the surface of the cutter shaft body 1.
The cutter shaft body 1 may be any cutter shaft used for mounting a cutter wheel on a cutter holder in the prior art, for example, the cutter shaft body 1 may be a cutter shaft including a cone and a cylinder which are coaxial and integrally formed as shown in fig. 1, and the outer diameter of the cutter shaft body 1 is slightly smaller than the outer diameter of a common cutter shaft, so that after the diamond abrasive particle layer is arranged on the surface of the cutter shaft body, the outer diameter of the coated cutter shaft is equal to the outer diameter of the common cutter shaft. In the present application, the outer diameter of the coated arbor means the outer diameter of the portion around which the cutter wheel rotates, for example, the coated arbor as shown in fig. 1, and the outer diameter of the coated arbor means the outer diameter of the cylindrical portion of the coated arbor.
In one possible way, the arbor body 1 may be made of steel, iron or an alloy or the like.
The diamond abrasive particle layer 2 comprises a brazing sub-layer 21 brazed on the cutter shaft body 1, a titanium carbide sub-layer 22 arranged on the brazing sub-layer 21 through a physical vapor deposition method, and diamond abrasive particles 23 inlaid in the brazing sub-layer 21 and the titanium carbide sub-layer 22, wherein the outer ends of the diamond abrasive particles 23 extend out of the titanium carbide sub-layer 22.
In one possible implementation, the diamond abrasive particles 23 have a particle size of 5 μm to 50 μm and a tolerance of ±2 μm. The amount and the particle size of glass dust generated by cutting glass are different under different cutting requirements, so that diamond abrasive particles with different particle sizes can be used as the filler of the diamond abrasive particle layer for different cutting requirements. However, for the same coated arbor, the grain size of the diamond abrasive grains is relatively uniform, for example, if the diamond abrasive grains with the grain size of 5 μm are selected, the diamond abrasive grains with the grain size range of 5+/-2 μm can be selected, so that the height uniformity of the diamond abrasive grains arranged on the surface of the arbor body is ensured, and the distribution of the diamond abrasive grains on the arbor body is relatively uniform.
In one implementation manner, the length L1 of the diamond abrasive particles 23 extending out of the brazing sub-layer 21 is 40% -60% of the thickness D of the diamond abrasive particle layer 2, and the thickness D of the diamond abrasive particle layer 2 is the distance between the outer ends of the diamond abrasive particles 23 and the side of the brazing sub-layer 21 close to the arbor body 1. If the length L1 of the diamond abrasive particles 23 extending out of the brazing sub-layer 21 is less than 40% of the thickness D of the diamond abrasive particle layer 2, the part of the diamond abrasive particles exposed out of the titanium carbide sub-layer is too small to obviously reflect the action of the diamond abrasive particles; if the length L1 of the diamond abrasive grains 23 extending out of the brazing sub-layer 21 is greater than 60% of the thickness D of the diamond abrasive grain layer 2, the diamond abrasive grains 23 are unstable in the brazing sub-layer 21, and may be caused to fall off during cutting of glass, thereby causing uneven outer diameter of the coated arbor and further reducing cutting accuracy and cutting quality.
In one possible manner, the outer diameter of the coated arbor is 0.77-0.79 mm, wherein the outer diameter of the coated arbor is calculated by the diameter of the largest circumscribed circle where the outer ends of the diamond abrasive particles are located. For different cutter wheels, coated cutter shafts with different outer diameters can be used, and the outer diameter of the coated cutter shaft provided by the application is 0.77-0.79 mm, so that the normal use of the cutter wheels can be ensured, and the function of diamond abrasive particles can be fully reflected in use.
In the present application, the thickness ratio of the brazing sub-layer 21 to the titanium carbide sub-layer 22 is not limited, and may be one that can be achieved in the prior art. For example, the brazing sub-layer has a thickness of 0.01mm to 0.1mm, and the titanium carbide sub-layer has a thickness of 0.5 μm to 5 μm.
In one realisable manner, the brazing sub-layer 21 is provided on the surface of the arbor body by means of brazing, in particular the method comprises:
Step 1, pretreating the cutter shaft body 1, removing surface grease and other dirt, and uniformly mixing diamond abrasive particles and brazing flux to prepare the mixture.
In one possible way, the brazing material used for manufacturing the brazing sub-layer 21 is selected from one of copper-based alloy solders containing active elements, silver-based alloy solders containing active elements, nickel-based alloy solders containing active elements, including titanium element, chromium element, and may also include other chemically active elements, such as manganese element, tin element, etc. According to the application, the titanium element in the brazing material and the diamond abrasive particles are subjected to chemical reaction in the brazing process, so that titanium carbide is generated in the brazing sub-layer 21, and the generated titanium carbide and the diamond abrasive particles have stronger acting force, so that the diamond abrasive particles can be firmly inlaid in the brazing sub-layer 21.
In one possible form, the braze used in the present application is a granular material for mixing with diamond abrasive particles and for use in a braze die.
In one possible manner, the weight ratio of diamond abrasive particles to braze is 1 (3-30). Since the inner diameter of the die for brazing in the present application is not adjustable, the density of diamond abrasive particles embedded in the coated arbor can be adjusted by adjusting the weight ratio of diamond abrasive particles to brazing material after the particle size of the diamond abrasive particles is selected. Specifically, the weight ratio of the brazing material is increased to reduce the distribution density of the diamond abrasive particles, and the weight ratio of the brazing material is decreased to increase the distribution density of the diamond abrasive particles.
And 2, installing the cutter shaft body 1 treated in the step 1 in a brazing mold, wherein a gap exists between the cutter shaft body 1 and the brazing mold, and adding the mixture prepared in the step 1 into the gap.
In one possible manner, the present application selects braze of a particle size similar to that of the selected diamond abrasive particles so that the braze and diamond abrasive particles can be more thoroughly and uniformly mixed.
In one implementation, the shape of the inner hole of the die is similar to the shape of the cutter shaft body, and the difference is that the size of the inner hole of the die is slightly larger than that of the cutter shaft body, so that a gap can be formed between the cutter shaft body and the inner wall of the die after the cutter shaft body is arranged in the die.
Further, after the cutter shaft body is arranged in the die, the cutter shaft body is coaxial with the die, so that the distance between the cutter shaft body and the inner wall of the die is equal, and the thickness of a brazing layer formed on the surface of the cutter shaft body is uniform. Optionally, the distance between the arbor body and the inner wall of the mold is slightly greater than the particle size of the diamond abrasive particles, so that the diamond abrasive particles can be uniformly distributed between the arbor body and the inner wall of the mold without being mostly clamped at the top of the gap due to the overlarge particle size.
And 3, heating the die provided with the cutter shaft body 1 and the brazing material and obtained in the step 2 in an aerobic environment.
In one possible way, the mould with the arbor body 1 and braze obtained in step 2 is heated to 50-150 ℃ and kept at that temperature for 5-10 min.
The step is operated in an aerobic environment, and the low-melting-point material in the brazing material is melted at the temperature and reacts with oxygen to generate oxide, so that diamond abrasive particles are sintered on the surface of the cutter shaft body 1.
And 4, continuously heating the workpiece obtained in the step 3 in an oxygen-free environment.
In one possible mode, in step 4, the workpiece obtained in step 3 is continuously heated to 800-1100 ℃ and kept at that temperature for 10-60 s. Under the above temperature conditions, the high melting point substances in the brazing material melt and are uniformly coated on the surface of the arbor body 1. After heat preservation, the workpiece is cooled, so that the brazing of the diamond abrasive particles is completed.
And 4, operating in an anaerobic environment, and avoiding oxidation reaction of brazing material and diamond in contact with oxygen, so that the state of a brazing material simple substance is maintained, and more importantly, carbon dioxide generated by contact of diamond with oxygen is avoided under a high-temperature condition, so that the shape integrity of diamond abrasive particles is maintained.
In this step, the oxygen-free environment may be, for example, in a vacuum furnace.
In one possible embodiment, the titanium carbide sub-layer 22 is arranged on the brazing sub-layer 21 by means of a physical vapor deposition method (Physical Vapor Deposition, PVD).
Physical vapor deposition is a film manufacturing method in which a solid material is converted into a vapor phase substance in an atomic, molecular or ionic state by physical form such as evaporation or sputtering under vacuum conditions, and then these evaporated particles carrying energy are deposited on the surface of a substrate or a part to form a film layer.
The method for manufacturing the TiC sub-layer by adopting the PVD method in the embodiment of the application comprises the following steps: discharging the electric arc on the Ti target in the vacuum furnace, and ionizing metal Ti to generate Ti ions; meanwhile, methane or C 2H2 gas is introduced into the furnace chamber, and under the discharge effect of the tungsten wire, the diamond abrasive particles ionize to obtain C ions. The Ti ions and C ions are attracted by the place where the bias is present (in the embodiment of the application, specifically the placement of the arbor body, the surface of the brazing sublayer) and create motion. TiC is generated on the surface of the brazing sub-layer, and the quantity of generated TiC gradually increases along with continuous discharge of the electric arc, so that the TiC sub-layer with the preset thickness is formed on the surface of the brazing layer.
In the embodiment of the application, a TiC sub-layer is further arranged on the brazing sub-layer, the bonding force between the brazing material and the diamond abrasive particles is further improved by increasing the number of TiC molecules on the surface of the brazing sub-layer, and the uniformity of the total thickness of the brazing sub-layer and the titanium carbide sub-layer is higher.
Fig. 2 is a schematic view of another coated arbor provided in an embodiment of the present application, and referring to fig. 2, a plurality of diamond abrasive grain layers 2 are disposed on the surface of the arbor body 1. For example, the coated arbor as shown in fig. 2 includes two diamond abrasive grain layers, wherein the diamond abrasive grain layer near the arbor body is a first diamond abrasive grain layer, and the diamond abrasive grain layer far from the arbor body is a second diamond abrasive grain layer.
The thickness of the first diamond abrasive particle layer may be the same as or different from the thickness of the second diamond abrasive particle layer, and the particle diameter of the diamond abrasive particles embedded in the first diamond abrasive particle layer may be the same as or different from the particle diameter of the diamond abrasive particles embedded in the second diamond abrasive particle layer.
As the coated arbor is continuously used, the second diamond abrasive particle layer on the surface of the coated arbor may fall off to expose the first diamond abrasive particle layer, thereby increasing the service life of the coated arbor. And if the outer diameter of the cutter shaft body is smaller than that of the preset cutter shaft body, the outer diameter of the preset cutter shaft body can be increased by adding the first diamond abrasive particle layer, so that the outer diameter of the manufactured coated cutter shaft can reach the target outer diameter.
Because the hardness of diamond abrasive particles is great, the cutting wheel install behind the coating arbor, in the clearance between diamond abrasive particles can be got into to the glass bits that produces in cutting glass in-process, along with the continuous rotation of cutting wheel, the glass bits are smashed into the glass bits that the particle diameter is less by diamond abrasive particles, compare in simple metal arbor, the glass bits after being smashed cause wearing and tearing very little to diamond abrasive particles, in addition, most glass bits can be discharged the cutting wheel hole to the glass bits that cutting glass produced can not cause the hindrance to the rotation of cutting wheel. Therefore, the coated cutter shaft provided by the application can provide lasting high cutting precision and excellent cutting quality in the process of cutting glass.
The diamond abrasive particles in the partially exposed state are arranged in the diamond brazing layer, and the friction coefficient between the diamond abrasive particles and the cutter wheel is larger than that between the common metal cutter shaft and the cutter wheel, so that the coated cutter shaft provided by the embodiment of the application has higher holding force on the cutter wheel, and the titanium carbide sub-layer further enhances the bonding strength between brazing material and the diamond abrasive particles, so that the holding force of the brazing material on the diamond abrasive particles is enhanced, and the diamond abrasive particles are embedded in the brazing sub-layer more firmly and are not easy to fall off. Meanwhile, compared with a common metal cutter shaft, the coated cutter shaft with the diamond abrasive particle layer has good wear resistance and long service life, and the cutter wheel arranged by using the coated cutter shaft is more stable for cutting glass; compared with PCD (polycrystalline diamond) cutter shafts, the coated cutter shafts provided by the embodiment of the application are low in price and high in fracture resistance.
The application also provides a method for manufacturing the coated arbor, which comprises the following steps:
Step 1, pretreating a cutter shaft body 1, removing surface grease and other dirt, and uniformly mixing diamond abrasive particles and brazing materials to prepare a mixture;
step 2, mounting the cutter shaft body 1 treated in the step 1 in a brazing mold, wherein a gap exists between the cutter shaft body 1 and the brazing mold, and adding the mixture prepared in the step 1 into the gap;
Step 3, in an aerobic environment, heating the die provided with the cutter shaft body 1 and the brazing material and obtained in the step 2;
Step 4, in an oxygen-free environment, continuously heating the workpiece obtained in the step 3;
step 5, manufacturing a titanium carbide sub-layer on the surface of the workpiece obtained in the step 4 by using a physical vapor deposition method;
And 6, removing the titanium carbide deposited on the surface of the diamond abrasive particles in the workpiece obtained in the step 5, exposing the part of the diamond abrasive particles extending out of the titanium carbide sublayer, and enabling the outer diameter of the prepared coated cutter shaft to be uniform.
The specific implementation manner of the steps 1 to 4 of the method can be referred to the foregoing description of the manufacturing process of the brazing sub-layer, and will not be repeated here.
The specific implementation manner of the step 5 of the method can be referred to the foregoing description of the manufacturing process of the titanium carbide sub-layer, and will not be repeated here.
Step 6 of the method can be to use a grinding tool to grind away the titanium carbide deposited on the surface of the diamond abrasive particles to expose the diamond abrasive particle bodies.
In one possible manner, steps 1-6 are continued on the surface of the diamond abrasive particle layer to obtain a coated arbor with multiple diamond abrasive particle layers.
The method for manufacturing the coated arbor has the advantages that the sources of the used raw materials are wide, the diamond abrasive particles can be uniformly brazed on the surface of the arbor body by using the method provided by the application, the titanium carbide sub-layer can be uniformly arranged on the surface of the brazing sub-layer, and the method is simple and convenient, the condition is mild, and the diamond abrasive particles are firmly and stably in the brazing sub-layer and the titanium carbide sub-layer.
According to the embodiment of the application, brazing is realized through chemical reaction between the diamond abrasive particles and the brazing material, and meanwhile, the brazing sub-layer further improves the bonding strength of the diamond abrasive particles and the brazing sub-layer, so that the risk of falling of the diamond abrasive particles in the using process is reduced, the high-precision production requirement of a coated cutter shaft process is realized, and the production cost of the coated cutter shaft is reduced.
The application has been described in detail in connection with the specific embodiments and exemplary examples thereof, but such description is not to be construed as limiting the application. It will be understood by those skilled in the art that various equivalent substitutions, modifications or improvements may be made to the technical solution of the present application and its embodiments without departing from the spirit and scope of the present application, and these fall within the scope of the present application. The scope of the application is defined by the appended claims.
Claims (4)
1. A coated arbor having a layer of diamond abrasive particles, comprising: the diamond abrasive particle cutter comprises a cutter shaft body (1) and a diamond abrasive particle layer (2) arranged on the surface of the cutter shaft body (1), wherein the diamond abrasive particle layer (2) comprises a brazing sub-layer (21) brazed on the cutter shaft body (1), a titanium carbide sub-layer (22) arranged on the brazing sub-layer (21) through a physical vapor deposition method and diamond abrasive particles (23) inlaid in the brazing sub-layer (21) and the titanium carbide sub-layer (22), and the outer ends of the diamond abrasive particles (23) extend out of the titanium carbide sub-layer (22); the grain diameter of the diamond abrasive grains (23) is 5-50 mu m, the grain diameter tolerance range is +/-2 mu m, the length L1 of the diamond abrasive grains (23) extending out of the brazing sub-layer (21) is 40-60% of the thickness D of the diamond abrasive grain layer (2), and the thickness D of the diamond abrasive grain layer (2) is the distance between the outer end of the diamond abrasive grains (23) and one side of the brazing sub-layer (21) close to the cutter shaft body (1);
The surface of the cutter shaft body (1) is provided with a plurality of diamond abrasive particle layers (2).
2. A coated arbor as defined in claim 1, wherein the coated arbor has an outer diameter of 0.77-0.79 mm, wherein the coated arbor has an outer diameter measured as the diameter of the largest circumscribed circle about which the outer ends of the diamond abrasive particles are located.
3. Coated arbor according to any of the claims 1 or 2, characterised in that the braze used for manufacturing the braze sublayer (21) is selected from one of copper-based alloy solders containing active elements, silver-based alloy solders containing active elements, nickel-based alloy solders containing active elements, the active elements comprising titanium element, chromium element.
4. A method of manufacturing a coated arbor as defined in any one of claims 1-3, comprising:
step 1, pretreating a cutter shaft body (1), removing surface grease and other dirt, and uniformly mixing diamond abrasive particles and brazing materials to prepare a mixture;
step 2, mounting the cutter shaft body (1) treated in the step 1 in a brazing mold, wherein a gap exists between the cutter shaft body (1) and the brazing mold, and adding the mixture prepared in the step 1 into the gap;
step3, in an aerobic environment, heating the die provided with the cutter shaft body (1) and the brazing material and obtained in the step 2;
Step 4, in an oxygen-free environment, continuously heating the workpiece obtained in the step 3;
step 5, manufacturing a titanium carbide sub-layer on the surface of the workpiece obtained in the step 4 by using a physical vapor deposition method;
Step 6, removing titanium carbide deposited on the surface of the diamond abrasive particles in the workpiece obtained in the step 5, exposing the part of the diamond abrasive particles extending out of the titanium carbide sub-layer, and enabling the outer diameter of the prepared coated cutter shaft to be uniform; wherein, in the step 1, the weight ratio of diamond abrasive particles to brazing material is 1 (3-30);
in the step 3, the die provided with the cutter shaft body (1) and the brazing material and obtained in the step 2 is heated to 50-150 ℃ and kept at the temperature for 5-10 min;
In the step 4, the workpiece obtained in the step 3 is continuously heated to 800-1100 ℃, and the temperature is kept for 10-60 s;
and (3) after the steps 1-6 are completed, continuing the steps 1-6 on the surface of the diamond abrasive particle layer to obtain the coated cutter shaft with the multi-layer diamond abrasive particle layer.
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| CN201810181796.3A CN108214958B (en) | 2018-03-06 | 2018-03-06 | Coated cutter shaft with diamond abrasive particle layer and manufacturing method thereof |
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| CN201810181796.3A CN108214958B (en) | 2018-03-06 | 2018-03-06 | Coated cutter shaft with diamond abrasive particle layer and manufacturing method thereof |
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| US10786875B2 (en) * | 2014-07-02 | 2020-09-29 | Raytheon Technologies Corporation | Abrasive preforms and manufacture and use methods |
| CN113664411B (en) * | 2021-08-25 | 2024-02-13 | 上海科弗新材料科技有限公司 | Dental needle |
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| US5833021A (en) * | 1996-03-12 | 1998-11-10 | Smith International, Inc. | Surface enhanced polycrystalline diamond composite cutters |
| CN1229709A (en) * | 1998-02-23 | 1999-09-29 | 信越化学工业株式会社 | Abrasive-bladed multiple cutting wheel assembly |
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| US5398455A (en) * | 1993-01-14 | 1995-03-21 | United Technologies Corporation | Grinding tool |
| US5762660A (en) * | 1996-04-03 | 1998-06-09 | Regents Of The University Of California | Precision replenishable grinding tool and manufacturing process |
| JP3482321B2 (en) * | 1996-10-15 | 2003-12-22 | 新日本製鐵株式会社 | Dresser for polishing cloth for semiconductor substrate and method of manufacturing the same |
| JP3482322B2 (en) * | 1996-11-25 | 2003-12-22 | 新日本製鐵株式会社 | Dresser for polishing cloth for semiconductor substrate and method of manufacturing the same |
| JP2017113858A (en) * | 2015-12-25 | 2017-06-29 | 新日鉄住金マテリアルズ株式会社 | Diamond grindstone having carbide layer, and method of manufacturing the same |
| CN206986028U (en) * | 2017-03-10 | 2018-02-09 | 北京沃尔德金刚石工具股份有限公司 | A kind of cutter head of band coating alloy cutter shaft and glass-cutting |
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| US5833021A (en) * | 1996-03-12 | 1998-11-10 | Smith International, Inc. | Surface enhanced polycrystalline diamond composite cutters |
| CN1229709A (en) * | 1998-02-23 | 1999-09-29 | 信越化学工业株式会社 | Abrasive-bladed multiple cutting wheel assembly |
| US5997597A (en) * | 1998-02-24 | 1999-12-07 | Norton Company | Abrasive tool with knurled surface |
| CN201915843U (en) * | 2011-01-25 | 2011-08-03 | 中国石油集团渤海石油装备制造有限公司 | Radial polycrystalline diamond bearing for spiral drilling rig transmission shaft |
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