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Nano composite titanium-chromium-aluminum-silicon nitride cutter coat and preparation method thereof

A nano-composite, aluminum-silicon oxide technology, applied in coatings, metal material coating processes, ion implantation plating, etc., can solve problems that cannot meet the requirements for better performance of cutting tools, and achieve practical use value and huge market Potential, the effect of meeting the need for better performance

Active Publication Date: 2010-09-15
GUANGDONG UNIV OF TECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] TiCrN and TiAlN hard alloy coating tools, which are widely used at present, can effectively improve the mechanical wear resistance and high temperature oxidation resistance of the tool, but still cannot meet the requirements of modern high-speed machining for better performance of the tool.

Method used

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  • Nano composite titanium-chromium-aluminum-silicon nitride cutter coat and preparation method thereof
  • Nano composite titanium-chromium-aluminum-silicon nitride cutter coat and preparation method thereof
  • Nano composite titanium-chromium-aluminum-silicon nitride cutter coat and preparation method thereof

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Embodiment Construction

[0021] The present invention uses physical vapor deposition technology to coat a layer of titanium / titanium nitride transition layer on the surface of the WC / Co cemented carbide tool substrate, and then coats a layer of titanium-chromium-aluminum-silicon-nitride coating material, wherein the transition layer The thickness is 0.1-0.5 microns, and the thickness of the titanium-chromium-aluminum-silicon oxide coating is 1-4 microns.

[0022] The coating formulations are as follows:

[0023] Titanium 40at.%, Chromium 10at.%, Aluminum 10at.%, Silicon 5at.%, Nitrogen 35at.%;

[0024] Titanium 25at.%, Chromium 20at.%, Aluminum 20at.%, Silicon 5at.%, Nitrogen 30at.%;

[0025] Titanium 30at.%, Chromium 15at.%, Aluminum 15at.%, Silicon 10at.%, Nitrogen 30at.%;

[0026] Titanium 45at.%, Chromium 5at.%, Aluminum 5at.%, Silicon 5at.%, Nitrogen 40at.%;

[0027] Titanium 25at.%, Chromium 10at.%, Aluminum 10at.%, Silicon 15at.%, Nitrogen 40at.%;

[0028] Titanium 40at.%, Chromium 20at.%, ...

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Abstract

The invention discloses a nano composite titanium-chromium-aluminum-silicon nitride cutter coat and a preparation method thereof. The cutter matrix is WC / Co hard alloy, and the coat is a nano composite titanium-chromium-aluminum-silicon nitride coat containing a transition layer, wherein the coat contains titanium, chromium, aluminum, silicon and nitrogen elements; and the size of crystalline grains is 5 to 15 nanometers, the thickness of the coat is 1 to 4 microns, the micro hardness of the coat is 30GPa, and the high-temperature stability reaches over 1,022 DEG C. A nano composite titanium-chromium-aluminum-silicon nitride coat cutter is a nano composite structural coat cutter prepared in a mode of combining ion plating and sputter-plating, and is suitable for cutting and processing high-hardness steel materials at a high speed.

Description

technical field [0001] The invention relates to a nano-composite titanium-chromium-aluminum-silicon nitride tool coating coated by physical vapor deposition technology and a preparation method thereof. Background technique [0002] Tool coating is to use physical or chemical vapor deposition method to coat a layer of high hardness, high wear resistance metal or non Metal compound coating obtained. To reduce the diffusion and chemical reaction between the tool and the workpiece, protect the tool matrix material, and improve the wear resistance and cutting hardness of the tool. [0003] Since the advent of coated tools, tool coating technology has achieved rapid development, and there are more and more types of coatings. The hard coating materials prepared by physical vapor deposition technology in the early days are usually simple TiN and TiC coatings, which have high resistance to mechanical wear, abrasive wear and low friction coefficient, but the high temperature oxidati...

Claims

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Application Information

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IPC IPC(8): C23C14/34C23C14/06
Inventor 王成勇成晓玲余东海张凤林匡同春
Owner GUANGDONG UNIV OF TECH
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