High-precision processing method for graphite cutter

A processing method and high-precision technology, applied in the field of tool processing, can solve the problems of easy oxidation of the diamond coating on the surface, poor adhesion of the diamond coating, substandard finish, etc., to achieve good strength and toughness, good surface quality, surface The effect of low roughness

Inactive Publication Date: 2018-10-12
DONGGUAN LINGJIE PRECISION MACHINING TECH CO LTD
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Problems solved by technology

[0004] In the existing diamond-coated cutting tools, the adhesion of the diamond coating is poor, the surface ...

Method used

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  • High-precision processing method for graphite cutter

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Embodiment Construction

[0022] The present invention will be described in further detail below.

[0023] The invention provides a high-precision machining method for graphite cutting tools, comprising:

[0024] A, prepare the alloy substrate, the alloy substrate is a tungsten steel substrate;

[0025] B. Purify the alloy substrate;

[0026] C. Depositing a single crystal diamond coating on the surface of the substrate.

[0027] Among them, tungsten steel has a series of excellent properties such as high hardness, wear resistance, good strength and toughness, heat resistance and corrosion resistance, especially its high hardness and wear resistance, which can increase the service life of the tool. The linkage of carbon atoms in polycrystalline diamond coatings includes some sp 3 and some sp 2 Hybridization, since the bonds between carbon atoms in diamond are all sp 3 Compared with the diamond coating in the prior art, the hybrid covalent bond has strong binding force, stability and directionality...

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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...

Claims

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Application Information

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IPC IPC(8): C30B25/02C30B29/04C23C14/06C23C16/02C23C16/27C23C16/56C23C28/04
CPCC23C14/0641C23C16/0227C23C16/27C23C16/56C23C28/044C30B25/02C30B29/04
Inventor 郜晋锋刘佳廖春生
Owner DONGGUAN LINGJIE PRECISION MACHINING TECH CO LTD
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