Preparation method of textured coating for diamond tools based on micro-blocking method

Abstract

The invention discloses a preparation method for a diamond cutter texture coating based on a micro-region blocking method. The preparation method is characterized by mainly comprising the steps that,1, a micro-hole and / or a micro-groove array are machined in a metal film to serve as a mask; 2, a tool base body undergoes pretreatment; 3, the mask is fixed on the surface of the cutter base body subjected to pretreatment; 4, a micro-region barrier film is deposited on the surface of the cutter covered with the mask by adopting a surface coating technology, the mask is removed after the film is prepared, micro-region protrusions with texture features and with the function of restraining the growth of a diamond are formed on the surface of the cutter; 5, a diamond texture coating is selectively grown on the surface of the cutter with the micro-region protrusions by adopting a CVD method; and 6, the micro-region protrusions which are formed on the surface of the cutter base body in a depositing mode and have the texture features in the step 4 are removed. The method is simple, convenient and rapid and relatively low in cost, the growth efficiency and the success rate are relatively high, the cutter cannot be damaged, and the strength of the cutter can not be reduced.

Description

technical field [0001] The invention relates to a cutting tool preparation technology, in particular to a diamond cutting tool preparation technology, in particular to a preparation method of a diamond cutting tool texture coating based on a micro-area blocking method. Background technique [0002] As we all know, the micro-texture on the surface of the tool has the functions of reducing friction and wear resistance, anti-sticking, and reducing the cutting temperature of the tool. It has a significant effect on increasing cutting efficiency and tool life. If it is applied to diamond-coated tools, it will be more excellent However, the processing of diamond is difficult and the technology is immature. At present, few people have studied the diamond-coated textured tool, and there is no suitable method to prepare diamond coating with textured morphology. Contents of the invention [0003] The purpose of the present invention is to address the gaps in the above research field...

AI Technical Summary

Problems solved by technology

[0002] As we all know, the micro-texture on the surface of the tool has the functions of reducing friction and wear resistance, anti-sticking, and reducing the cutting temperature of the tool. It has a significant effect on increasing cutting efficiency and tool life. If it is applied to diamond-coated tools, it will be more excellent However, the processing of diamond is difficult and the technology is immature. At present, few people have studied the diamond-coated textured tool, and there is no suitable method to prepare diamond-coated diamond with textured morphology.

Images