Method for preparing high-adhesion diamond coating with pulse laser

A diamond-coated, high-adhesion technology, applied in metal material coating process, coating, ion implantation plating, etc., can solve problems such as inability to completely remove the surface of the tool, reduce the hardness and strength of the tool, and cause large damage to the substrate , to achieve the effect of simple and practical process, improving bonding strength and good adhesion

Active Publication Date: 2012-02-15
JIANGSU UNIV
View PDF2 Cites 18 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0005] The purpose of the present invention is to overcome the fact that the current tool pretreatment method cannot leave a certain value of residual compressive stress on the surface of the tool matrix and at a certain depth, and the damage to the matrix is ​​relatively large, such as reducing the hardness and strength of the tool and forming a brittle phase on the edge of the tool. η phase, resulting in brittle fracture, unable to completely remove Co on the surface

Method used

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
View more

Image

Smart Image Click on the blue labels to locate them in the text.
Viewing Examples
Smart Image
  • Method for preparing high-adhesion diamond coating with pulse laser
  • Method for preparing high-adhesion diamond coating with pulse laser

Examples

Experimental program
Comparison scheme
Effect test

Example Embodiment

[0031] Example

[0032] Laser shock strengthening improves the adhesion of diamond coating and YG6 cemented carbide tools

[0033] Clean the surface of YG6 cemented carbide tool 7 with industrial alcohol or acetone solution, and then coat a layer of uniform black paint 8 on the surface. Choose Nd:YAG solid laser generator 3, the laser energy is 200m ~ 2J, the spot diameter is 0.8mm , The frequency is 8HZ, the pulse width is 8ns, the overlap rate is 50%, the computer control system 2 controls the movement trajectory of the Nd:YAG solid-state laser generator 3 and the numerical control five-axis worktable 1, the laser beam 11 is adjusted through the optical lens 4 The spatial distribution of the laser energy, the laser beam 12 is radiated to the black paint surface 9 through the reflector 5, the water confinement layer device 6 is activated, the tool 7 matrix is ​​strengthened for the first time, and then industrial alcohol is used to remove the black remaining on the tool surface. ...

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to view more

PUM

No PUM Login to view more

Abstract

The invention discloses a method for preparing a high-adhesion diamond coating with pulse laser, belonging to the fields of coated cutting tool industry and laser processing. In the method, a dual-laser shock processing (LSP) technology is used to perform selective Co removal treatment on the surface and subsurface of a YG serial hard alloy under the high-frequency and high-pressure action of laser shock waves, by virtue of the great hardness difference between Co and WC on the premise of not affecting the mechanical property of a cutting tool, at the same time, B ions are fed in the cutting tool by adopting laser shock waves with B ions, and the B ions react with Co during high temperature deposition to generate dense CoB and Co2B to prevent Co at the subsurface and core part of the cutting tool from spreading and migrating, thus remarkably improving the bonding strength. According to the method, the dual LSP technology is used to improve the bonding strength of the coated cutting tool and overcome the limitation of traditional measures, thus being an ideal technical means for improving the coating adhesion and the overall mechanical property of the coated cutting tool.

Description

technical field [0001] The invention relates to the field of laser processing and coating tools. Specifically refers to the method of using double laser shock strengthening treatment technology to improve the bonding strength between the diamond coating and the YG series cemented carbide tool, as well as the overall mechanical and mechanical properties of the coating and the tool. Background technique [0002] Diamond has excellent properties such as high hardness, high wear resistance, high thermal conductivity, low coefficient of friction, low coefficient of thermal expansion, etc. It is an ideal tool coating material for wear-resistant coatings of cutting tools. The cemented carbide material has a series of excellent properties such as high hardness, wear resistance, good strength and toughness, heat resistance, corrosion resistance, etc., especially its high hardness and wear resistance, and is a widely used tool material. However, with the development of industry and t...

Claims

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to view more

Application Information

Patent Timeline
no application Login to view more
IPC IPC(8): C23F4/04C23C14/28C23C16/27
Inventor 周建忠谢小江黄舒陈寒松杨晶
Owner JIANGSU UNIV
Who we serve
  • R&D Engineer
  • R&D Manager
  • IP Professional
Why Eureka
  • Industry Leading Data Capabilities
  • Powerful AI technology
  • Patent DNA Extraction
Social media
Try Eureka
PatSnap group products

Browse by: Latest US Patents, China's latest patents, Technical Efficacy Thesaurus, Application Domain, Technology Topic.

© 2024 PatSnap. All rights reserved.Legal|Privacy policy|Modern Slavery Act Transparency Statement|Sitemap