Method for preparing sector-shaped diamond tool bit

A diamond cutter head and fan-shaped technology, which is applied in metal processing equipment, manufacturing tools, grinding/polishing equipment, etc., to achieve the effect of good alloying, high hardness and stable batch

Active Publication Date: 2019-01-18
杨凌美畅新材料股份有限公司
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  • Abstract
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Problems solved by technology

The preparation method solves some technical problems that cannot be overcome by using graphite molds to produce fan-shaped diamond cutter heads. The method of the invention can improve the thickness and dimensional accuracy of fan-shaped cutter heads, the hardness and sintering density of the cutter head, and the stability of the quality of the cutter head. And significantly improve the service life of the tool head mold and reduce the cost of mold use

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  • Method for preparing sector-shaped diamond tool bit
  • Method for preparing sector-shaped diamond tool bit

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Embodiment 1

[0030] The invention provides a method for preparing a fan-shaped diamond cutter head, which includes forming, molding, sintering in a furnace, and demoulding, specifically:

[0031] (1) Molding: Mix diamond and metal powder evenly, and after granulation, press the mixed powder on a press to form a fan-shaped rough cutter head. When designing the forming mold of the fan-shaped blank cutter head, the height and length of the fan-shaped blank cutter head are slightly smaller than the size of the finished cutter head. The size of the work difference should be considered according to the elastic aftereffect of different diamond cutter head powders to ensure the shape of the blank cutter. The head can be smoothly loaded into the sintered steel mold.

[0032] (2) Die loading: Coat the contact surface between the heat-resistant steel mold and the fan-shaped blank cutter head, and the contact surface between the fan-shaped blank cutter head and the fan-shaped blank cutter head (that i...

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Abstract

The invention provides a method for preparing a sector-shaped diamond tool bit. The method specifically comprises the steps that firstly, diamond and metal powder are mixed to be uniform, the mixed powder is pressed into a sector-shaped blank too bit, then the sector-shaped blank tool bit is put in a heat-resistant steel mold, sintering is carried out in a bell jar hot pressing sintering furnace,and the sector-shaped diamond too bit is prepared. By means of the process method, the thickness size precision of the sector-shaped tool bit, the hardness and sintering density of the tool bit and the stability of the quality of the tool bit can be improved, the service life of a tool bit mold is remarkably prolonged, and the mold use cost is reduced.

Description

technical field [0001] The invention relates to the technical field of diamond cutter production, in particular to a method for preparing a fan-shaped diamond cutter head. Background technique [0002] In order to improve the trimming effect of cutting some hard and brittle materials such as ceramics and marble, the cutter head of the diamond saw blade generally adopts a fan-shaped cutter head, as described in the ZL96237478.4 patent. This kind of cutter head requires high dimensional accuracy, especially in terms of the thickness of the cutter head, the tolerance is required to be ≤0.05mm. At present, the sintering production technology of fan-shaped cutter head mainly adopts to put diamond powder or green compact in graphite mold, and then put it between the upper and lower pressure heads of the resistance sintering machine. Add a certain pressure for sintering. [0003] The patent No. ZL200810071444.9 discloses "a method for producing diamond segments", which uses an el...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B24D3/10B24D18/00
CPCB24D3/10B24D18/0009
Inventor 刘少华贾海波柳成渊李新龙赵瑜易嘉阳
Owner 杨凌美畅新材料股份有限公司
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