Diamond coating cutter, and preparation method and application thereof in high speed graphite processing

A diamond coating and cutting tool technology, which is applied in the field of mechanical processing, can solve problems such as tool wear, no significant increase in service life, and difficulty in meeting complex electrode requirements for tool shapes, so as to overcome friction and wear, improve cutting performance, and ensure stability. Effect

Active Publication Date: 2016-05-11
GUANGDONG UNIV OF TECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

Cemented carbide tools have serious tool wear when milling graphite at high speed. It is necessary to check the tool wear condition in time and replace the tool frequently. It has limited application in large-size or precision electrode pro

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  • Diamond coating cutter, and preparation method and application thereof in high speed graphite processing
  • Diamond coating cutter, and preparation method and application thereof in high speed graphite processing
  • Diamond coating cutter, and preparation method and application thereof in high speed graphite processing

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[0039] In order to make the objectives, technical solutions and advantages of the present invention clearer, the following further describes the present invention in detail with reference to the accompanying drawings and embodiments.

[0040] Such as figure 1 , figure 2 As shown, the present invention discloses a diamond-coated tool, which includes a cutting tip 1, an edge 2 and a clamping shank 3. The clamping shank 3 is a cemented carbide substrate, and the cutting tip 1 and the cutting edge 2 are The base material is coated with a diamond coating. The base material of the cutting tip 1 and the cutting edge 2 is tungsten carbide cemented carbide, in which the mass percentage of cobalt does not exceed 6%; the proportion of vanadium carbide or titanium carbide or other mixtures is not more than 1%. The thickness of the diamond coating is 7-20μm. The cutting tip 1 is provided with a number of dust chip removal grooves 4 along the cutting direction, which facilitates the effectiv...

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Abstract

The invention discloses a diamond coating cutter, and a preparation method and the application thereof in high speed graphite processing. The diamond coating cutter comprises a cutter tip, a blade and a clamping cutter holder, wherein the clamping cutter holder is made of a hard alloy matrix, the cutter tip and the blade are coated with diamond coatings on matrix materials, the diamond coating cutter is characterized in that the end cutting edge front angle gamma o1 of the blade is 2 to 6 degrees, the end cutting edge rear angle alpha 1 is 5 to 13 degrees, the peripheral cutting edge front angle gamma o2 is 5 to 15 degrees, the peripheral cutting edge rear angle alpha 2 is 10 to 14 degrees, and the helical angle beta is 15 to 45 degrees. The diamond coating cutter provided by the invention has the characteristics of high hardness, wear resistance, low friction coefficient, good heat conduction and the like, is suitable for high speed graphite processing, can effectively overcome frictional wear caused by graphite dust to the surface of the cutter, and is classified as an ideal cutter for cutting graphite.

Description

technical field [0001] The invention relates to the field of machining, in particular to a diamond-coated tool, its preparation method and its application in high-speed machining of graphite. Background technique [0002] Isotropic cold isostatic graphite has better mechanical and physical properties than ordinary molded graphite. Its particles have no preferred orientation, so its strength and conductivity are consistent in all directions. It is one of the fastest-growing industrial materials in the world today. Isotropic graphite has the advantages of high high temperature strength, low thermal expansion coefficient, good processability, good thermal and electrical conductivity, high temperature resistance, stable chemical properties, plasticity, and good thermal shock resistance. Widely used in mold EDM electric spark discharge, solar graphite thermal field, metallurgy, machinery, construction, electrical, electronics, aerospace, nuclear industry, non-ferrous and precious...

Claims

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Application Information

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IPC IPC(8): B28D1/18C23C16/27C23C16/48
CPCB28D1/186C23C16/271
Inventor 王成勇周玉海郑李娟王启民代伟
Owner GUANGDONG UNIV OF TECH
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