High-precision processing method for graphite cutter

Abstract

The invention discloses a high-precision processing method for a graphite cutter. The high-precision processing method comprises the following steps: A, preparation of an alloy substrate which is a tungsten steel substrate; B, purification of the alloy substrate; and C, deposition of a monocrystal diamond coating on the surface of the substrate. The high-precision processing method provided by theinvention has the following beneficial effects: tungsten steel has a series of excellent properties like high hardness, wear resistance, good strength and toughness, heat resistance and corrosion resistance, and specifically, high hardness and wear resistance of the tungsten steel can increase the service life of a cutter; the connecting bond between carbon atoms in diamond is an sp<3> hybrid covalent bond, so strong binding force, stability and directionality are obtained; monocrystal diamond is insusceptible to sticking the cutter and generating built-up edges during cutting, so the qualityof the processing surface is good, and surface roughness is low during processing of non-ferrous metals; and compared with an ordinary diamond coating, the cutter prepared by using the method provided by the invention has a service life increased by 10 to 15 times, has higher processing precision, wear resistance and durability, and is an edge tool for processing of a silicon-aluminum material.

Description

technical field [0001] The invention relates to the field of tool processing, in particular to a high-precision machining method for graphite tools. Background technique [0002] Graphite has high hardness, good electrical conductivity, radiation protection, corrosion resistance, good thermal conductivity, low cost, and high temperature resistance. It has the opposite performance to metal temperature changes. The higher the temperature, the harder the body. Therefore, the glass hot bending mold is made of graphite material to reduce the deformation problem during the use of the product, which not only greatly reduces the production cost, but also greatly reduces the difficulty of mold processing. The glass hot bending mold made of graphite has the advantages of light and thin, transparent and clean, anti-fingerprint, anti-glare, hard, scratch-resistant, and good weather resistance. It can be molded to make a variety of 3D shapes, and it can also increase the curved edge touc...

AI Technical Summary

Problems solved by technology

[0004] In the existing diamond-coated cutting tools, the adhesion of the diamond coating is poor, the surface of the coating is rough, the finish is not up to standard, and the diamond coating on the surface is easy to oxidize

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