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A kind of nanometer tool coating and preparation method thereof

A tool and coating technology, applied in the field of nano-tool coating and its preparation, to increase the specific surface area and surface energy, reduce the internal stress of the coating, and enhance the bending/fatigue resistance.

Active Publication Date: 2022-08-09
SUZHOU UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0005] For this reason, the technical problem to be solved by the present invention is to overcome the problems of competition and cooperation in the prior art in the improvement of coating bonding force, hardness, toughness, thermal stability and other properties.

Method used

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  • A kind of nanometer tool coating and preparation method thereof
  • A kind of nanometer tool coating and preparation method thereof
  • A kind of nanometer tool coating and preparation method thereof

Examples

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Effect test

Embodiment 1

[0039] refer to figure 2 As shown, a nano-tool coating and preparation method thereof, the specific steps are as follows:

[0040] The base material of the tool is WC / Co cemented carbide, and the multi-scale bionic structure of the tool coating is designed according to the microstructure of C. squamiferum, that is, three layers of micron-scale are formed by sputtering target particle gradient growth, layer growth and co-growth. Functionally graded coating, and the nano-scale corrugated structure is introduced between the interfaces of each layer to control the bonding strength between layers, so that the overall tool coating presents a "hard-tough-hard" three-layer composite structure. Its specific preparation process steps are as follows:

[0041] (1) Matrix grinding and polishing, ultrasonic cleaning: Prepare metallographic samples on the surface of the tool matrix on an automatic metallographic grinding machine, then grind with 1000# sandpaper with absolute ethanol, and t...

Embodiment 2

[0048] refer to figure 2 As shown, a nano-tool coating and preparation method thereof, the specific steps are as follows:

[0049] The base material of the tool is high-speed steel, and the multi-scale bionic structure of the tool coating is designed according to the microstructure of C. squamiferum, that is, a three-layer functionally graded coating with a micron scale is formed through the gradient growth, layer growth and co-growth of the sputtering target material. , and the nano-scale corrugated structure is introduced between the interfaces of each layer to control the interlayer bonding strength, so that the overall tool coating presents a "hard-tough-hard" three-layer composite structure. Its specific preparation process steps are as follows:

[0050] (1) Matrix grinding and polishing, ultrasonic cleaning: Prepare metallographic samples on the surface of the tool matrix on an automatic metallographic grinding machine, then grind with 1000# sandpaper with absolute eth...

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Abstract

The invention relates to a nano-tool coating and a preparation method thereof, and relates to the technical field of coatings. The nano-tool coating of the present invention includes a tool substrate and a transition layer, a support layer, an interface layer and a functional top layer sequentially deposited on the surface of the tool substrate; the transition layer is a Ti transition layer; the support layer is a TiAlTaN gradient coating; the interface layer is WS 2 / TaO nano-multilayer coating; the functional top layer is TiAlN / WS 2 / TaO composite coating, and the nano-scale corrugated structure is introduced between the interfaces of each layer to control the interlayer bonding strength through femtosecond laser technology, so that the overall tool coating presents a "hard-tough-hard" three-layer composite structure to achieve mechanical properties. Synergistic optimization with multiple indicators of long-acting self-lubricating and reducing affinity.

Description

technical field [0001] The invention relates to the technical field of coatings, in particular to a nano-tool coating and a preparation method thereof. Background technique [0002] The laminated structure composed of carbon fiber reinforced resin matrix composite (CFRP) and titanium alloy material has high specific strength and specific modulus, and the structure is often made into key load-bearing components of aerospace vehicles by bolting. In order to improve the position accuracy and assembly quality of the assembly holes of the laminated structure, the laminated components must be clamped and processed in one piece, which makes the integrated hole-making technology of CFRP / titanium alloy laminated components with high efficiency and low damage become the field of aviation manufacturing. research hotspot. [0003] Due to its high hardness and high temperature oxidation resistance, physical vapor deposition (PVD) TiAlN-based coating tools are currently commonly used too...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C23C14/35C23C14/14C23C14/06B23K26/70B23K26/352
CPCC23C14/35C23C14/352C23C14/0641C23C14/14B23K26/352B23K26/702
Inventor 张克栋刘亚运刘同舜郭旭红王呈栋
Owner SUZHOU UNIV
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