PCD cutting drill bit and machining method with same applied

Abstract

The invention relates to the field of superhard cutting tools, in particular to a PCD cutting drill bit and a machining method with the PCD cutting drill bit applied. The PCD cutting drill bit comprises a working part connected with a body of a cutting tool and further comprises a plurality of cutting parts arranged at the end, away from the body, of the working part; and a plurality of cutting teeth are arranged on the end surface of one end, away from the working part, of each cutting part. According to the PCD cutting drill bit, the multiple cutting teeth can increase the contact area between the PCD cutting drill bit and a silicon carbide base body blank, the cutting teeth can slightly beat, extrude and grind the surface of the silicon carbide base body blank in the high-frequency vibration and rotation process of the cutting tool, and therefore micropore machining of the silicon carbide base body blank is achieved, the possibility that the silicon carbide base body blank is broken in the machining process is reduced, precision machining and fine machining of the silicon carbide base body blank are achieved, and meanwhile the machining efficiency is greatly improved.

Description

technical field [0001] The present application relates to the field of superhard cutting tools, in particular to a PCD cutting drill bit and a processing method using the same. Background technique [0002] In the 21st century, with the increasingly higher requirements for product performance in the industrial field, people also put forward higher requirements for the use of materials. Materials with high strength, high hardness, and high wear resistance are widely used in various extreme service environments. However, when this type of material is processed precisely, it will be difficult to process, brittle in processing, and low in processing accuracy. And other issues. [0003] As an inorganic non-metallic material, silicon carbide has been known for its high specific strength, high specific modulus, high temperature resistance, corrosion resistance, fatigue resistance, good damping and shock absorption, and has been widely used in functional Ceramics, advanced refract...

AI Technical Summary

Problems solved by technology

However, the prerequisite for the application of silicon carbide materials is the processing of silicon carbide materials. Due to the high hardness and high brittleness of silicon carbide materials, when using the drill bit in the related art to process holes on it, the silicon carbide material will be greatly produced. The damage of the silicon carbide material is easy to cause the collapse of the silicon carbide material, resulting in the loss and waste of the silicon carbide material

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