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Method for manufacturing ultra-hard composite blade

A composite blade and manufacturing method technology, applied in the direction of manufacturing tools, accessories of toolholders, tools for lathes, etc., can solve the problems of high production cost and easy falling off of superhard tools, so as to improve strength, reduce production costs, The effect of reducing dosage

Inactive Publication Date: 2008-04-30
FUNIK ULTRAHARD MATERIAL
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] The purpose of the present invention is to solve the problem that the super-hard polycrystalline composite blade is not welded firmly and is easy to fall off, and the production cost of the integral machine-clamped super-hard cutting tool is high. The polycrystalline composite blade not only improves the strength of the composite superhard tool, but also greatly reduces the amount of superhard material powder and reduces production costs

Method used

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  • Method for manufacturing ultra-hard composite blade
  • Method for manufacturing ultra-hard composite blade

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Effect test

Embodiment 1

[0012] The manufacturing method of the present invention is as follows: firstly, the cemented carbide or high-speed steel plate prepared as the blade substrate 1 is divided into required specifications and shapes, then the tip part 2 is cut off and its side is processed into a curved shape, and then the formed blade is processed The matrix is ​​placed in the corresponding sintering mold, and the superhard material and binder powder are added to the missing tip, and the superhard material and binder powder are converted into superhard polycrystalline material through high temperature and high pressure sintering, and are firmly combined with the blade matrix. Then, after grinding and sharpening, the superhard polycrystalline composite blade is made. The corresponding sintering mold is a conventional container, which is used to hold the blade matrix, superhard material and binder powder.

Embodiment 2

[0014] The manufacturing method of the present invention is as follows: firstly, the cemented carbide or high-speed steel plate prepared as the base of the blade is divided into required specifications and shapes, then the tip of the knife is cut off and its side is processed into a curved shape, and then the formed blade base is placed In the corresponding sintering mold, superhard material and binder powder are added to the missing blade tip, and the superhard material and binder powder are converted into superhard polycrystalline material through high-temperature and high-pressure sintering, which is firmly combined with the blade matrix, and then After conventional processes such as grinding and sharpening, it is made into a superhard polycrystalline composite blade.

[0015] The curved shape of the blade base body 1 after cutting off the knife tip part 2 is arc-shaped or zigzag-shaped or a convex-concave curved surface.

Embodiment 3

[0017] The manufacturing method of the present invention is as follows: firstly, the cemented carbide or high-speed steel plate prepared as the base of the blade is divided into required specifications and shapes, then the tip of the knife is cut off and its side is processed into a curved shape, and then the formed blade base is placed In the corresponding sintering mold, superhard material and binder powder are added to the missing blade tip, and the superhard material and binder powder are converted into superhard polycrystalline material through high-temperature and high-pressure sintering, which is firmly combined with the blade matrix, and then After grinding and sharpening, it is made into a superhard polycrystalline composite blade.

[0018] The superhard polycrystalline material is composed of artificial diamond or cubic boron nitride and a small amount of binder, the binder is selected from aluminum nitride, titanium nitride, molybdenum nitride, magnesium nitride, zir...

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Abstract

The invention discloses a method for manufacturing a super-hard composite cutting blade. Firstly, carbide alloy or high-speed steel sheets prepared to be a base body of the cutting blade is cut into the needed size and shape. Secondly, the cutting tip portion is cut down, and the lateral surface of base body is manufactured with curve lines. Thirdly, the manufactured and formed base body of the cutting blade is placed inside a corresponding sintering mold, super-hard materials and composite powder are added into the missing cutting tip portion, and the super-hard materials and composite powder are transformed into super-hard polycrystalline materials and are fixedly combined with the base body of the cutting blade after being sintered under high temperature and high pressure. Fourthly, the super-hard polycrystalline cutting blade is made through the procedures of abrasive fabrication and blade-opening. The invention resolves problems of un-solid welding, easy peeling and high manufacture cost of an integral tool-holder super-hard cutter of the existing super-hard composite cutting blade. The invention not only increases the rigidity of the composite super-hard cutters, but also greatly reduces the using amount of super-hard material powder, and lowers the manufacture cost.

Description

technical field [0001] The invention relates to a method for manufacturing a cutting tool, in particular to a method for manufacturing a superhard composite blade. Background technique [0002] Artificial diamond and cubic boron nitride are the two materials with the highest hardness in the world, among which diamond has the highest hardness among all known substances, and the hardness of cubic boron nitride is second only to diamond, but its heat resistance and chemical resistance to ferrous metals Greater stability. The superhard polycrystalline material, which is sintered by superhard material powder and a small amount of binder at high temperature and high pressure, has good performance and is widely used in the field of machining tools. However, at present, the superhard polycrystalline composite blades all adopt the welding method between the cemented carbide substrate and the cutter body. This method has insufficient welding fastness, and the superhard material layer...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B23P15/28B22F7/08B23P5/00B23B27/14
Inventor 李和鑫
Owner FUNIK ULTRAHARD MATERIAL
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