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Method for manufacturing ultra-hard composite blade

A technology of compound blades and manufacturing methods, which is applied in the direction of manufacturing tools, accessories of tool holders, and tools used in lathes, etc., can solve the problems of easy falling off and high production costs of superhard tools, and achieve increased strength, reduced production costs, and reduced The effect of 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 superhard polycrystalline composite blade is not welded firmly and is easy to fall off, and the production cost of the integral machine-clamped superhard cutter is high. By adopting the preformed hole one-time sintering method to manufacture the superhard polycrystalline composite blade, It 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

Examples

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Effect test

Embodiment 1

[0012] The manufacturing method of the present invention is as follows: firstly, the hard alloy or the high-speed steel plate (2) prepared as the blade base are drilled into the preformed hole to form the preformed hole (1), and then directly to the preformed hole under the protection of the sintering mould. (1) Add superhard material and binder powder into it, and convert the superhard material and binder powder in the preformed hole into superhard polycrystalline material after high temperature and high pressure sintering; the size and spacing of the preformed hole (1) should be based on Determine the shape and size of the blade to be produced, and then cut along the center of the preformed hole (1) to make the required blade specification. After the above cutting, the original superhard polycrystalline material in the preformed hole becomes the tip of the blade. The hard alloy or high-speed steel plate between the preformed holes (1) is the base of the blade, and then underg...

Embodiment 2

[0014] The manufacturing method of the present invention is as follows: firstly, the hard alloy or the high-speed steel plate (2) prepared as the blade base are drilled into the preformed hole to form the preformed hole (1), and then directly to the preformed hole under the protection of the sintering mould. (1) Add superhard material and binder powder into it, and convert the superhard material and binder powder in the preformed hole into superhard polycrystalline material after high temperature and high pressure sintering; the size and spacing of the preformed hole (1) should be based on Determine the shape and size of the blade to be produced, and then cut along the center of the preformed hole (1) to make the required blade specification. After the above cutting, the original superhard polycrystalline material in the preformed hole becomes the tip of the blade. The cemented carbide or high-speed steel plate between the preformed holes (1) is the base of the blade, and then ...

Embodiment 3

[0016] The manufacturing method of the present invention is as follows: firstly, the hard alloy or the high-speed steel plate (2) prepared as the blade base are drilled into the preformed hole to form the preformed hole (1), and then directly to the preformed hole under the protection of the sintering mould. (1) Add superhard material and binder powder into it, and convert the superhard material and binder powder in the preformed hole into superhard polycrystalline material after high temperature and high pressure sintering; the size and spacing of the preformed hole (1) should be based on Determine the shape and size of the blade to be produced, and then cut along the center of the preformed hole (1) to make the required blade specification. After the above cutting, the original superhard polycrystalline material in the preformed hole becomes the tip of the blade. The cemented carbide or high-speed steel plate between the preformed holes (1) is the base of the blade, and then ...

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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 seat of the cutting blade is proceeded the treatment of drilling prepared forming openings, thereby prepared forming openings are formed. Secondly, super-hard materials and composite powder are directly added into the inner of the prepared forming openings under the protection of a sintering mold, and the materials installed inside the prepared forming openings are transformed into super-hard polycrystalline materials after being sintered under high temperature and high pressure. Thirdly, the demanded size of the cutting blade is made by cutting along the centre of the prepared forming openings, the super-hard polycrystalline materials installed inside the original prepared forming openings b a cutting tip, and the carbide alloy or high-speed steel sheets mounted between each prepared forming opening is used as a cutting base body. 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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IPC IPC(8): B23P15/28B22F7/08B23P5/00B23B27/14
Inventor 李和鑫
Owner FUNIK ULTRAHARD MATERIAL
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