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Hard alloy cutter with diamond coating and preparation method thereof

A diamond coating and cemented carbide technology, which is applied in metal material coating technology, coating, metal processing equipment and other directions, can solve the problems affecting the performance of diamond coated micro tools, the decrease in the strength of the tool matrix, and the easy breaking of the tool. question

Inactive Publication Date: 2011-11-23
SHENZHEN JINZHOU PRECISION TECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

However, when this method is applied to cemented carbide tools, there are relatively large defects. The main performance is that the strength of the tool matrix decreases significantly after the surface is corroded. Broken knife seriously affects the performance of diamond-coated micro-knife

Method used

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  • Hard alloy cutter with diamond coating and preparation method thereof
  • Hard alloy cutter with diamond coating and preparation method thereof
  • Hard alloy cutter with diamond coating and preparation method thereof

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Embodiment Construction

[0016] The present invention will be described in detail below in conjunction with the accompanying drawings and specific embodiments.

[0017] In the present invention, before the diamond coating, the transition layer is prepared on the tool substrate, and there are two ways to realize it: ion implantation and physical vapor deposition. There are three ways to carry out the diamond coating process by means of transition layer pretreatment: first, ion implantation-transition layer quality inspection-diamond coating preparation; second, physical vapor deposition transition layer-transition layer quality inspection-diamond coating preparation ; Third, ion implantation-physical vapor deposition transition layer-transition layer quality inspection-diamond coating preparation.

[0018] The first embodiment includes the following steps, such as figure 1 Shown:

[0019] 110. Ion implantation;

[0020] Equipment used: high-power ion implanter;

[0021] Vacuum degree: 1.0E-4~9.0E-2...

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Abstract

The invention discloses a hard alloy cutter with a diamond coating and a preparation method thereof. The cutter comprises a cutter matrix and the diamond coating arranged on the surface of the cutter matrix; and a transitional layer is arranged on the cutter matrix. The preparation method comprises a pretreatment step of the matrix and a diamond depositing step, wherein in the pretreatment step, the transitional layer is formed on the matrix. The cutter can be used for avoiding the adverse influence of a cobalt element on the diamond coating and has the strength of the cutter matrix.

Description

technical field [0001] The invention relates to a preparation method of a cutting tool, in particular to a diamond-coated hard alloy cutting tool and a preparation method thereof. Background technique [0002] A major difficulty in depositing diamond on carbide tool substrates is the presence of cobalt (Co). Due to the high solubility and high diffusion coefficient of carbon (C) in cobalt (Co), it is not conducive to the nucleation of diamond, and will promote the formation of graphite phase, which seriously affects the adhesion of the coating, making the coating difficult to grow and easy to fall off. . [0003] The current common solution is to chemically etch cobalt (Co) on the tool substrate before coating. The method of chemical cobalt (Co) etching is to use chemical reagents to etch cobalt (Co) on the cemented carbide tool substrate to remove the cobalt (Co) element on the surface, which can effectively avoid the influence of cobalt (Co) element on diamond nucleation...

Claims

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Application Information

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IPC IPC(8): B23B27/00C23C14/48C23C14/06C23C14/22
Inventor 唐杰罗春峰屈建国陈成
Owner SHENZHEN JINZHOU PRECISION TECH
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