WO2020063006A1 - 一种用于加工硬脆性难加工材料的金刚石切削刀具 - Google Patents

一种用于加工硬脆性难加工材料的金刚石切削刀具 Download PDF

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Publication number
WO2020063006A1
WO2020063006A1 PCT/CN2019/094444 CN2019094444W WO2020063006A1 WO 2020063006 A1 WO2020063006 A1 WO 2020063006A1 CN 2019094444 W CN2019094444 W CN 2019094444W WO 2020063006 A1 WO2020063006 A1 WO 2020063006A1
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Prior art keywords
cutting
cutting edge
edge
tool
edges
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PCT/CN2019/094444
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English (en)
French (fr)
Chinese (zh)
Inventor
李伟秋
颜炳姜
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汇专科技集团股份有限公司
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Priority claimed from CN201811330578.8A external-priority patent/CN109396558A/zh
Application filed by 汇专科技集团股份有限公司 filed Critical 汇专科技集团股份有限公司
Priority to JP2021500422A priority Critical patent/JP7112584B2/ja
Priority to KR1020217005808A priority patent/KR20210034663A/ko
Publication of WO2020063006A1 publication Critical patent/WO2020063006A1/zh

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    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
    • B23D—PLANING; SLOTTING; SHEARING; BROACHING; SAWING; FILING; SCRAPING; LIKE OPERATIONS FOR WORKING METAL BY REMOVING MATERIAL, NOT OTHERWISE PROVIDED FOR
    • B23D79/00—Methods, machines, or devices not covered elsewhere, for working metal by removal of material
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B28—WORKING CEMENT, CLAY, OR STONE
    • B28D—WORKING STONE OR STONE-LIKE MATERIALS
    • B28D1/00—Working stone or stone-like materials, e.g. brick, concrete or glass, not provided for elsewhere; Machines, devices, tools therefor
    • B28D1/18—Working stone or stone-like materials, e.g. brick, concrete or glass, not provided for elsewhere; Machines, devices, tools therefor by milling, e.g. channelling by means of milling tools

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  • the invention relates to the technical field of precision machining tools, in particular to a diamond cutting tool for processing hard and brittle materials.
  • brittle materials such as glass, ceramics, or sapphire, glass, ceramics, or sapphire need to be processed; accordingly, different types of cutting tools are required.
  • PCD Polycrystalline diamond
  • PCD cutting With the advent of tools, the limitations of traditional cutting tools have been broken.
  • the existing PCD cutting tool is to cut PCD into thin slices and then weld it to the cutting body of cemented carbide as the cutting edge.
  • the pad type PCD cutting tool is usually limited to at most.
  • the object of the present invention is to overcome the shortcomings of the existing technology and structure, and provide a cutting tool, a cutting edge portion thereof, and an ultrasonic tool assembly including the cutting tool.
  • the polycrystalline diamond cutting body is provided with a larger number of cutting edges, the form and structure of the cutting edges are more diversified, and the cutting effect can be improved.
  • a first aspect of the present invention provides a cutting edge portion for a cutting tool, the material of the cutting edge portion is polycrystalline diamond, and the cutting edge portion includes an integrally formed cutting body and a plurality of cutting edges, The cutting edges are helical, and each of the cutting edges is provided on the outer surface of the cutting body along the center axis of the cutting body, and a first chip discharge groove is provided between two adjacent cutting edges.
  • a first end portion of the cutting edge is provided on a front end surface of the cutting body, and the cutting edge extends along the front end surface of the cutting body and a side surface of the cutting body in order, so that the first The two ends are provided on the side of the cutting body.
  • the cutting edge portion further includes a smoothing edge integrally formed on the cutting body, and the smoothing edge is disposed at a first end portion of the cutting edge and smoothly transitions with the cutting edge.
  • the cutting body includes a cutting body end portion and a connecting portion fixedly connected through one end surface, a first end portion of the cutting edge is provided on a front end surface of the cutting body end portion, and the cutting edges are in turn Extending along the front end surface of the cutting body end portion and the side surface of the cutting body end portion, so that the second end portion of the cutting edge is provided on the side surface of the cutting body end portion, and the second edge of the cutting edge An end portion is located at a connection between the end portion of the cutting body and the connection portion.
  • the end of the cutting body includes a first cutting portion and a second cutting portion that are coaxially and fixedly connected to form a step, and an outer diameter of the first cutting portion is smaller than an outer diameter of the second cutting portion.
  • the second cutting portion is fixedly connected to the connecting portion.
  • a circle is used between the front end surface of the first cutting portion and its side surface, between the first cutting portion and the second cutting portion, and between the front end surface of the second cutting portion and its side surface. Arc transition connection.
  • a cooling groove is provided at the center of the front end surface of the cutting body, and a first end portion of the cutting edge is provided at an outer edge of the cooling groove.
  • the spiral direction of the cutting edge is left-handed or right-handed, and the spiral angle of the cutting edge is 15 ° -60 °.
  • the outer diameter of the cutting body is 0.5 mm to 135 mm
  • the number of the cutting edges is determined by the width of the cutting edge
  • the width of the cutting edge is 0.01 mm to 0.2 mm.
  • the cutting edge has a cutting edge length of 0.1mm to 15mm.
  • the groove depth of the first chip discharge groove is 0.05 mm to 0.3 mm.
  • the blade length of the smoothing blade is 0.01 mm to 3 mm.
  • the cutting body is provided with a plurality of spiral second chip evacuation grooves opposite to the cutting edge direction, and the second chip evacuation grooves extend from a front end surface of the cutting body to a side surface thereof, each The second chip evacuation groove is provided along a circumferential direction of the central axis of the cutting body; the second chip evacuation groove separates each of the cutting edges into a plurality of segments.
  • a spiral angle of the second chip discharge groove is 20 ° to 40 °.
  • an interval between two adjacent second chip discharge grooves is 0.25 mm to 0.75 mm, and a groove depth of the second chip discharge grooves is 0.05 mm to 0.15 mm.
  • the cutting edge portion further includes a base body, the base body is fixedly connected to the rear end surface of the cutting body, and the material of the base body is a tungsten carbide-based hard alloy.
  • a second aspect of the present invention provides a cutting tool, which includes a tool shank and the cutting edge portion as described above mounted on the front end of the tool shank, the tool shank and the cutting body Rear end connection.
  • the material of the tool shank is tungsten carbide-based hard alloy
  • the cutting edge portion further includes a base body, and the base body is fixedly connected to the rear end face of the cutting body, and the material of the base body is tungsten carbide.
  • Base cemented carbide; the tool shank and the rear end surface of the base body are vacuum welded.
  • the third aspect of the present invention also provides an ultrasonic tool assembly including the cutting tool as described above.
  • the present invention provides a cutting tool, a cutting edge portion of a cutting tool, and an ultrasonic tool assembly including the cutting tool. Compared with the prior art, it has the following beneficial effects:
  • the cutting edge part is made of polycrystalline diamond material, which can effectively improve the hardness and strength of the cutting edge, improve the machining accuracy and processing efficiency; and the cutting edge of the cutting edge part is provided on the surface of the cutting body through integral molding, which is opposite to the welding sheet
  • the PCD cutting tool can form a larger number of cutting edges on the polycrystalline diamond cutting body with the same outer diameter, and the form and structure design of the cutting edge are more diversified. Furthermore, several cutting edges are along the central axis of the cutting body. Circumferentially distributed, multiple cutting edges can bear large cutting forces together to ensure strength, and the cutting edges are helical, which can weaken the cutting force on each cutting edge, and can adapt to higher cutting speeds and larger feeds Volume to improve processing efficiency.
  • FIG. 1 is a schematic structural diagram of a cutting edge portion in an embodiment of the present invention.
  • FIG. 2 is a partially enlarged view of part A of FIG. 1;
  • FIG. 3 is a partially enlarged view of part B of FIG. 1;
  • FIG. 4 is a schematic structural view of a cutting body end portion of a cutting edge portion in an embodiment of the present invention.
  • FIG. 5 is a schematic diagram of a contour of a cutting edge and a smoothing edge of a cutting edge portion on a side in an embodiment of the present invention
  • FIG. 6 is a schematic structural diagram of a cutting tool according to an embodiment of the present invention.
  • FIG. 7 is a schematic structural diagram of a cutting tool in another perspective of the embodiment of the present invention.
  • FIG. 8 is a plan view of FIG. 7.
  • front end and rear end refer to the end of the cutting tool that is close to the processing workpiece during use, and the end that is away from the processing workpiece is “rear end”.
  • a first aspect of a preferred embodiment of the present invention provides a cutting edge portion 1 for a cutting tool.
  • the material of the cutting edge portion 1 is polycrystalline diamond, and the cutting edge portion 1
  • the cutting body 11 includes an integrally formed cutting body 11 and a plurality of cutting edges 12.
  • the cutting edges 12 are spiral. Each of the cutting edges 12 is provided on the outer surface of the cutting body 11 along the center axis of the cutting body 11.
  • a first chip discharge groove 13 is provided between two adjacent cutting edges 12; a first end portion of the cutting edge 12 is provided on a front end surface of the cutting body 11, and the cutting edges 12 are sequentially along A front end surface of the cutting body 11 and a side surface of the cutting body 11 are extended, and a second end portion of the cutting edge 12 is provided on a side surface of the cutting body.
  • the rotation of the cutting edge portion 1 drives each of the cutting edges 12 to rotate, and the material of the machining workpiece is removed.
  • the waste chips generated during the cutting process are discharged from the first chip discharge groove 13, which can avoid the waste generated by the machining process. Negative Effects.
  • the present embodiment provides a cutting edge portion 1 for a cutting tool, which is made of polycrystalline diamond material, and the cutting main body 11 and the cutting edge 12 are integrally formed.
  • the PCD cutting tool can be provided with a larger number of cutting edges 12 on the cutting body 11 with the same outer diameter, and the form and structure of the cutting edges 12 are more diversified.
  • the problem of insufficient strength can make full use of the characteristics of the polycrystalline diamond material to improve the cutting strength of the cutting edge portion 1, thereby effectively improving the cutting accuracy and cutting work efficiency, and extending the service life of the cutting tool.
  • the cutting edge 12 with a spiral shape is designed to adapt to higher cutting speeds and feeds, further improving machining efficiency.
  • the method of integrally forming the cutting body 11 and the cutting edge 12 mainly includes two categories: the first type is the accumulation of material molding, such as casting, additive manufacturing, etc .; the other is the cutting body After cutting the material on the blank of 11 to form a cutting edge 12, such as milling, electric spark cutting, laser cutting, chemical corrosion, etc.
  • the cutting edge portion 1 is a milling cutter, and can be specifically used for milling a processing object to form a contour required.
  • the processing object is mainly a glass product, a ceramic product, or a sapphire product. Wait.
  • the cutting edge portion 1 further includes a trimming edge 17 integrally formed on the cutting body 11.
  • the trimming edge 17 is disposed at a first end portion of the cutting edge 12 and is connected to the cutting edge 12.
  • the cutting edge 12 transitions smoothly, and the smoothing edge 17 is disposed on the front end surface of the cutting edge portion 1, which can remove the machining blade pattern on the workpiece and improve the surface smoothness.
  • the smoothing edge 17 is tangent to the cutting edge 12
  • the trimming blade 17 is close to a horizontal setting; as shown in FIG. 5, one end of the trimming blade 17 is evacuated, and the angle ⁇ in the illustration is an obtuse angle, which can prevent stress concentration.
  • the cutting edges 12 are arranged tangentially.
  • the cutting body 11 includes a cutting body end portion 111 and a connecting portion 112 fixedly connected through one end surface, and a first end portion of the cutting edge 12 is provided on a front end surface of the cutting body end portion 111.
  • the cutting edge 12 extends along the front end surface of the cutting body end portion 111 and the side surface of the cutting body end portion 111 in order, so that the second end portion of the cutting edge 12 is provided on the cutting body end portion 111.
  • Side of the cutting edge 12, and the second end of the cutting edge 12 is located at the connection between the cutting body end 111 and the connecting portion 112; only the cutting edge 12 is covered on the outer surface of the cutting body end 111, which can satisfy Cutting requirements and simplify the machining of the cutting edge 12.
  • the cutting body end portion 111 includes a first cutting portion 1111 and a second cutting portion 1112 which are coaxially and fixedly connected and formed in a step shape.
  • the outer diameter is smaller than the outer diameter of the second cutting portion 1112.
  • the second cutting portion 1112 is fixedly connected to the connecting portion 112.
  • the first end portion of the cutting edge 12 is provided on the first cutting portion 1111.
  • a front end surface, and the cutting edge 12 along the front end surface of the first cutting portion 1111, the side surface of the first cutting portion 1111, the protruding portion of the front end surface of the second cutting portion 1112, and the The side of the second cutting portion 1112 extends so that the second end portion of the cutting edge 12 is provided on the side of the second cutting portion 1112. Since the contour line of the cutting edge 12 is more complicated, it can meet the processing accuracy requirements More demanding situations to improve cutting capacity.
  • the front end surface of 1112 and its side are connected by circular arcs, which can be seen by referring to FIG. 3 in detail.
  • the outline of the side of the cutting body 11 is a curved shape including multiple arcs and straight lines.
  • the cutting edge 12 formed on the surface of the cutting body 11 is a spline curve connected by a plurality of arcs and straight lines.
  • the shape of the cutting edge 12 is more complicated, which is suitable for processing brittle workpieces.
  • a cooling groove 14 is provided at a center of a front end surface of the cutting body 11, and a first end portion of the cutting edge 12 is provided at an outer edge of the cooling groove 14; the cooling groove 14 can Cooling the cutting edge 12 effectively reduces the thermal damage of the cutting edge 12, and the cooling groove 14 is provided at the center of the front end surface of the cutting body 11, which can make the cooling of the cooling groove 14 more uniform and the cooling effect is ideal.
  • spiral direction of the cutting edge 12 in this embodiment may be left-handed or right-handed.
  • the helix angle of the cutting edge 12 is 15 ° to 60 °. Increasing the helix angle appropriately can reduce the cutting force of the tool during processing, has strong impact resistance of the tool, and prevents vibration. It can also ensure better surface processing quality and increase the service life of the cutting tool. Based on the above-mentioned spiral angle, the strength of the cutting edge 12, the degree of sharpness, the size of the cutting force, and the discharge speed of waste chips are all ideal.
  • the outer diameter of the cutting body 11 of the cutting edge portion 1 is 0.5 to 135 mm, and the number of the cutting edges 12 is determined by the width of the cutting edge 12. After the outer diameter of 11 is determined, the smaller the width of the cutting edge 12 is, the more the number of the cutting edges 12 is; the width of the cutting edge 12 is 0.01 mm to 0.2 mm, and the length of the cutting edge 12 is 0.1 mm to 15 mm, based on the above restrictions on the outer diameter of the cutting body 11 and the cutting edge width of the cutting edge 12, 3 to 150 or more cutting edges 12 may be provided on the cutting edge portion 1. Specifically, in this embodiment, the cutting edge width of the cutting edge 12 refers to the distance between the two sides of the cutting edge 12.
  • a is the cutting edge width of the cutting edge 12.
  • the edge length refers to the distance between one end of the cutting edge 12 located on the side of the cutting body 11 and the front end surface of the cutting body 11.
  • L is the cutting edge 12.
  • the blade is long. Properly increasing the number of cutting edges 12 can evenly distribute the cutting force to each cutting edge 12 so that the cutting tool can withstand greater cutting forces and can adapt to higher cutting speeds and feeds, while reducing the edge width will improve processing Precision and cutting length determine the effective range of the cutting edge 12. Using the above-mentioned matching number of cutting edges 12, the width of the cutting edge and the length of the cutting edge, the cutting tool can have ideal processing accuracy while ensuring processing efficiency.
  • the surface roughness of the cutting edge 12 ranges from 0.2 to 0.4 ⁇ m, and the smaller the value, the smoother it is. Under the aforementioned surface roughness, the cutting edge of the cutting edge 12 is smooth and sharp, making the cutting process The surface accuracy of the object is guaranteed.
  • the depth of the first chip evacuation slot 13 should match the cutting edge width and edge length of the corresponding cutting edge 12.
  • the groove depth of the first chip evacuation slot 13 is preferably It is 0.05mm ⁇ 0.3mm, which makes the machining accuracy and machining effect better, and can also improve the machining efficiency and prolong the service life of the cutting tool.
  • the length of the smoothing blade 17 is 0.01 mm to 3 mm. Referring to FIG. 3 and FIG. 5, the length of the smoothing blade 17 refers to the diameter of the smoothing blade 17 along the cutting body 11. Projection length b in the direction.
  • the cutting body 11 is provided with a plurality of spiral second chip evacuation grooves 15 opposite to the cutting edge 12 direction.
  • the second chip evacuation grooves 15 extends from the front end surface to the side surface of the cutting body 11, and each of the second chip discharge grooves 15 is provided along a circumferential direction of the central axis of the cutting body 11;
  • the blade 12 is divided into several sections, which can be seen in detail with reference to FIG. 2.
  • the related parameters of the second chip discharge slot 15 are matched with the above-mentioned parameters of the cutting edge 12.
  • the specific parameters of the second chip discharge slot 15 in this embodiment are preferably: the helix angle of the second chip discharge slot 15 is 20 ° ⁇ 40 °, the interval between two adjacent second chip removing grooves 15 is 0.25mm to 0.75mm, and the groove depth of the second chip removing grooves 15 is less than or equal to the cutting edge width, specifically It is 0.05 to 0.15.
  • the cutting edge portion 1 further includes a base body 16 which is fixedly connected to the rear end surface of the cutting body 11.
  • the material of the base body 16 is a tungsten carbide-based hard alloy.
  • the specific forming process of the cutting edge portion 1 is as follows: first, the tungsten carbide-based hard alloy base 16 is used as a base, and natural or diamond powder and a binder are used at a high temperature (1000 ° C to 2000 ° C) and a high pressure (5 The cutting body 11 is sintered on the base 16 under a pressure of 100,000 atmospheres), and then the material is removed to form a cutting edge 12 on the outer surface of the cutting body 11.
  • the second aspect of this embodiment also proposes a cutting tool, as shown in FIG. 5 to FIG. 7, which includes a tool shank 2 and a cutting edge 1 as described above mounted on the front end of the tool shank 2.
  • the tool shank portion 2 is connected to the rear end surface of the cutting body 11; since it includes the cutting edge portion 1 described above, it is an integral PCD cutting tool and has all the beneficial effects of the cutting edge portion 1, here No one by one statement.
  • the material of the tool shank portion 2 is a tungsten carbide-based hard alloy
  • the cutting edge portion 1 further includes a base body 16.
  • the material of the base body 16 is a tungsten carbide based hard alloy, and the base body 16 is fixedly connected.
  • the tool shank 2 and the rear end surface of the base body 16 are vacuum welded.
  • the base 16 of the cutting edge 1 and the tool shank 2 are made of the same tungsten carbide-based hard alloy material, they have the same material characteristics. , Making the welding structure stability more ideal to ensure welding strength.
  • the tool shank 2 and the base body 16 are welded by a silver brazing layer; wherein the silver brazing layer is solidified by the silver brazing material, and the silver brazing material is melted during the welding process to make the base body 16 and the tool
  • the handle 2 is connected, and the latter two are fixed after being cured; specifically, the silver brazing material is made of silver as a base material and combined with other alloys.
  • the tool shank 2 and the base body 16 can have a better welding and fixing effect.
  • the tungsten carbide-based hard alloys used in the above-mentioned base 16 and tool shank 2 are sintered materials composed of tungsten carbide as a hard phase and a metal bonding phase; further, cobalt in the sintered material The mass percentage does not exceed 12%.
  • the contour of the cutting tool is less than 0.01%; wherein, the contour refers to the change of the measured actual contour relative to the ideal contour, with or without a reference; the limitation of the contour of the cutting tool can be further This makes the cutting tool have better machining accuracy and machining effect.
  • an ultrasonic tool assembly is also provided, which includes the cutting tool described above. Since the cutting tool is included, it has all the beneficial effects of the cutting tool, and will not be described here one by one.
  • Specific embodiment 1 provides a cutting tool.
  • the chip edge portion 1 includes 60 cutting edges 12.
  • the above-mentioned cutting tools are used to process the glass, and the use parameters of the existing pad-type PCD cutting tools (including 3 cutting edges) and the diamond grinding head (600 #) and The comparison of service life is shown in the table below.
  • the above-mentioned cutting tools are used to process ceramic workpieces, and the parameters of use with the existing pad-type PCD cutting tools (including 3 cutting edges) and diamond grinding heads (600 #) And the comparison of service life is shown in the table below.
  • the above-mentioned cutting tools are used to finish the end face of sapphire. It is similar to the existing pad-type PCD cutting tools (including 3 cutting edges) and the diamond grinding head (600 #). The comparison of operating parameters and service life is shown in the table below.
  • the cutting tool in this embodiment is under the limited conditions based on the cutting edge 12 described above.
  • the cutting tool in this embodiment is used to process glass, ceramic and sapphire workpieces, compared with the existing Welded PCD cutting tools and commonly used diamond grinding heads have superior machining results, higher machining efficiency and longer service life.
  • Specific embodiment 2 provides a cutting tool.
  • the cutting edge portion 1 includes 70 of the cutting edges 12, a helix angle of the cutting edge 12 is 58 °, a cutting edge width of the cutting edge 12 is 0.10 mm, and a cutting edge of the cutting edge 12 is provided.
  • the length is 2mm, the surface roughness of the cutting edge 12 is 0.3 ⁇ m; the groove depth of the first chip discharge groove 13 is 0.10mm; the helix angle of the second chip discharge groove 15 is 26 °, and the groove depth of the second chip discharge groove 15 It is 0.10 mm, and the interval between two adjacent second chip removal grooves 15 is 0.55 mm.
  • the cutting tools in the embodiment of the present invention can achieve better results in machining accuracy and processing effect, higher processing efficiency, and a longer service life than traditional hard tools. Carbide cutting tools and existing pad-type PCD cutting tools are longer.
  • This specific embodiment provides a cutting tool, which includes 80 cutting edges 12, a helix angle of the cutting edge 12 is 52 °, a cutting edge 12 has a width of 0.06 mm, a cutting edge 12 has a cutting length of 1.6 mm, and a cutting edge.
  • the surface roughness of 12 is 0.2 ⁇ m; the groove depth of the first chip removing groove 13 is 0.08 mm; the helix angle of the second chip removing groove 15 is 22 °; the groove depth of the second chip removing groove 15 is 0.08 mm, adjacent The interval between the two second chip removal grooves 15 is 0.40 mm.
  • the cutting tools in the embodiments of the present invention have superior cutting tool processing effects, higher processing accuracy, higher processing efficiency, and a longer service life than traditional carbide cutting tools and existing The solder pad PCD cutting tool is longer.
  • This embodiment provides a cutting tool, which includes 64 cutting edges 12, the helix angle of the cutting edge 12 is 66 °, the width of the cutting edge 12 is 0.14 mm, the length of the cutting edge 12 is 2.8 mm, and the cutting edge 12
  • the surface roughness is 0.36 ⁇ m; the groove depth of the first chip removal groove 13 is 0.12mm; the helix angle of the second chip removal groove 15 is 38 °, and the groove depth of the second chip removal groove 15 is 0.12mm.
  • the interval between the two second chip discharge grooves 15 is 0.65 mm.
  • the cutting tool in the embodiment of the present invention has a superior cutting tool processing effect, higher processing accuracy, higher processing efficiency, and a longer service life than traditional carbide cutting tools and existing cutting tools. Some pad-type PCD cutting tools are longer.
  • the embodiment of the present invention provides a cutting tool, a cutting edge portion 1 thereof, and an ultrasonic tool assembly including the cutting tool.
  • the material of the cutting edge portion 1 of the cutting tool is polycrystalline diamond, and a plurality of cutting edges 12 are provided by integral molding.
  • a cutting edge portion 1 is formed on the outer surface of the cutting body 11. Compared with the conventional pad-type PCD cutting tool, a larger number of cutting edges 12 can be provided on the cutting body 11 with the same outer diameter.
  • the structure and design of the structure are more diversified.
  • the cutting strength and hardness of the cutting tool can be improved, thereby improving the machining accuracy of the cutting tool, and extending the service life;
  • a plurality of helical cutting edges 12 are provided in the circumferential direction of the central axis, which can adapt to higher rotation speeds and knife consumption, thereby improving processing efficiency.

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  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Mining & Mineral Resources (AREA)
  • Physics & Mathematics (AREA)
  • Optics & Photonics (AREA)
  • Milling Processes (AREA)
  • Processing Of Stones Or Stones Resemblance Materials (AREA)
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PCT/CN2019/094444 2018-09-25 2019-07-02 一种用于加工硬脆性难加工材料的金刚石切削刀具 WO2020063006A1 (zh)

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JP2021500422A JP7112584B2 (ja) 2018-09-25 2019-07-02 硬脆性難削材加工用ダイヤモンド切削工具
KR1020217005808A KR20210034663A (ko) 2018-09-25 2019-07-02 경취성 난가공재용 다이아몬드 절삭 공구

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CN201811330578.8A CN109396558A (zh) 2018-09-25 2018-11-09 一种用于加工硬脆性难加工材料的金刚石切削刀具
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WO2023088840A1 (en) * 2021-11-16 2023-05-25 Element Six (Uk) Limited Milling tool
WO2023203115A1 (en) * 2022-04-21 2023-10-26 Element Six (Uk) Limited Method of milling brittle materials using a polycrystalline diamond end milling tool

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