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AlCrSiN-based multilayer nanometer composite cutter coating layer and preparation method thereof

A nano-composite and cutting tool technology, which is applied in coating, metal material coating process, ion implantation plating, etc., to achieve the improvement of mechanical wear resistance and high temperature oxidation resistance, meet the demand for better performance, huge market potential and Use value effect

Inactive Publication Date: 2015-09-23
GUANGDONG UNIV OF TECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0005] The method of preparing AlCrSiN-based nano-composite tool coatings using arc ion plating combined with high-power pulsed magnetron sputtering technology has not been reported yet, and the cemented carbide tools deposited with this AlCrSiN-based coating are very suitable for high hardness under high-speed conditions. Steel material cutting

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  • AlCrSiN-based multilayer nanometer composite cutter coating layer and preparation method thereof
  • AlCrSiN-based multilayer nanometer composite cutter coating layer and preparation method thereof

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Embodiment 1

[0029] An AlCrSiN-based cutting tool coating, the coating comprising a bonding layer, a transition layer and a main wear-resistant layer; the bonding layer is attached to a WC-Co cemented carbide or high-speed steel cutting tool substrate, with a thickness of 0.1 to 1 micron The Ti metal layer; the transition layer AlTiN coating is prepared by high-power pulse magnetron sputtering technology, attached to the bonding layer, which is an AlTiN coating of 0.5-2 microns; the main wear-resistant layer of AlCrSiN adopts arc ion plating Technology preparation, attached to the transition layer, the thickness is 1~5 microns;

[0030] Among them, the coating formula of the transition layer and the main wear-resistant layer is as follows:

[0031] Aluminum titanium nitrogen layer: aluminum 29 at.%, titanium 20 at.%, nitrogen 51 at.%;

[0032] Aluminum chromium silicon nitrogen layer: aluminum 25 at.%, chromium 20 at.%, silicon 5 at.%, nitrogen 50 at.%;

[0033] For the chromium alum...

Embodiment 2

[0038] An AlCrSiN-based cutting tool coating, the coating comprising a bonding layer, a transition layer and a main wear-resistant layer; the bonding layer is attached to a WC-Co cemented carbide or high-speed steel cutting tool substrate, with a thickness of 0.1 to 1 micron The Ti metal layer; the transition layer AlTiN coating is prepared by high-power pulse magnetron sputtering technology, attached to the bonding layer, which is an AlTiN coating of 0.5-2 microns; the main wear-resistant layer of AlCrSiN adopts arc ion plating Technology preparation, attached to the transition layer, the thickness is 1~5 microns;

[0039] Among them, the coating formula of the transition layer and the main wear-resistant layer is as follows:

[0040] Aluminum titanium nitrogen layer: aluminum 35at.%, titanium 18at.%, nitrogen 47at.%;

[0041] Aluminum chromium silicon nitrogen layer: aluminum 30 at.%, chromium 20 at.%, silicon 5 at.%, nitrogen 45 at.%;

[0042] For the chromium aluminum si...

Embodiment 3

[0047] An AlCrSiN-based cutting tool coating, the coating comprising a bonding layer, a transition layer and a main wear-resistant layer; the bonding layer is attached to a WC-Co cemented carbide or high-speed steel cutting tool substrate, with a thickness of 0.1 to 1 micron The Ti metal layer; the transition layer AlTiN coating is prepared by high-power pulse magnetron sputtering technology, attached to the bonding layer, which is an AlTiN coating of 0.5-2 microns; the main wear-resistant layer of AlCrSiN adopts arc ion plating Technology preparation, attached to the transition layer, the thickness is 1~5 microns;

[0048] Among them, the coating formula of the transition layer and the main wear-resistant layer is as follows:

[0049] Aluminum titanium nitrogen layer: aluminum 30at.%, titanium 20at.%, nitrogen 50at.%;

[0050] Aluminum chromium silicon nitrogen layer: aluminum 28 at.%, chromium 22 at.%, silicon 2 at.%, nitrogen 48 at.%;

[0051] For the chromium aluminum si...

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Abstract

The invention relates to an AlCrSiN-based multilayer nanometer composite cutter coating layer and a preparation method thereof, and belongs to the technical field of preparation of cutter coating layers. A cutter basal body of the AlCrSiN-based multilayer nanometer composite cutter coating layer adopts a WC-Co hard allot or high-speed steel; the coating layer structure comprises a Ti metal bonding layer, an AlTiN transition layer and an AlCrSiN main wear resistant layer, wherein the AlTiN transition layer consists of 29-35 at.% of aluminum, 15-20 at.% of titanium, and 47-51 at.% of nitrogen; and the AlCrSiN main wear resistant layer consists of 25-30 at.% of aluminum, 20-25 at.% of chromium, 1-10 at.% of silicon, and 45-50 at.% of nitrogen. The transition layer AlTiN coating layer is prepared by a high-power pulse magnetron sputtering technology; and the AlCrSiN coating layer is prepared by an arc ion plating technology. The AlCrSiN-based multilayer nanometer composite cutter coating layer has the advantages of high hardness, low friction coefficient, low internal stress, high bonding strength and good high-temperature stability; a deposition coating cutter is suitable for cutting a high-hardness steel material under the condition of high speed; and the service life of the cutter can be largely prolonged.

Description

technical field [0001] The invention relates to a preparation method of a tool coating, in particular to an AlCrSiN-based multilayer nano-composite tool coating and a preparation method thereof, belonging to the technical field of tool coating preparation. Background technique [0002] As the key tool of CNC machining technology, its performance has a decisive impact on the efficiency, precision and surface quality of cutting machining. The emergence of coated tools has further improved the high-speed cutting performance. It combines a substrate with high strength and good toughness with a hard film surface with high wear resistance, which plays a role in the improvement of the cutting performance of the tool and the progress of processing technology. It plays a very important role in improving the machining accuracy and efficiency, prolonging the service life of the tool, ensuring the surface quality of the workpiece and reducing the cost. [0003] High-performance coated ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C23C14/35C23C14/06C23C14/16
Inventor 王启民王成勇邹长伟冯思成聂志伟
Owner GUANGDONG UNIV OF TECH
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