Processing method of coating microstructured bionic surface type diamond cutter

Abstract

The invention discloses a machining method of a coating microstructured bionic surface type diamond cutter. The method comprises the following steps of 1, surface treatment of a hard alloy base body;2, deposition of a diamond coating; 3, microstructural treatment of the surface of a cutter; and 4, preparation of a silicon carbide coating. By the adoption of the technical scheme, the lubricating capacity of the cutter can be improved through cutter surface microstructuring, friction among the cutter, scraps and the surface of a workpiece in the machining process of the cutter is reduced, and therefore the cutting force, the cutting temperature, friction factors, cutter abrasion and other aspects in the cutting process are reduced, the cutting mechanism is achieved; the microstructure shapeis a vein stem shape; researches show that vein stems have a heat transfer effect, so that the heat transfer of the cutter surface is more uniform, and the heat dissipation effect of the cutter is better; and the silicon carbide coating has excellent properties such as high hardness, high strength, high thermal conductivity, corrosion resistance and low expansion coefficient, and after coating, the cutter has higher hardness, strength, wear resistance, oxidation resistance and the like in performance.

Description

technical field [0001] The invention relates to a diamond tool, in particular to a method for processing a coated microstructured bionic surface diamond tool, and belongs to the technical field of tool metal processing. Background technique [0002] With the development of industrial technology in my country's manufacturing industry and other fields, it is necessary to process various difficult-to-machine materials, such as high-silicon-aluminum materials, high-wear-resistant materials, etc., which requires higher and higher performance of the tool. Its high hardness, wear resistance, high thermal conductivity, etc. have attracted people's attention. However, in the prior art, the adhesion between the diamond coating of the diamond tool and the cemented carbide substrate is relatively poor, and in the process of high temperature and high speed cutting The diamond coating is easy to soften, so that the abrasive grains of the diamond coating will fall off during the processing, ...

AI Technical Summary

Problems solved by technology

[0003] The technical problem to be solved by the present invention is to provide a method for processing a diamond tool with a coated microstructured bionic surface, by generating a bionic microstructure on the surface of the diamond tool and coating a new type of film on the surface to improve the performance of the diamond tool. Cutting performance and service life, effectively solve the above-mentioned problems of poor cutting performance and short service life of diamond tools on difficult-to-machine materials

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