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SiNbCN multi-element gradient cutting tool with composite coating and preparation method thereof

A composite coating and gradient technology, applied in the coating, metal material coating process, ion implantation plating, etc., to achieve high hardness and toughness, excellent resistance to plastic deformation, and good resistance to diffusion wear

Inactive Publication Date: 2017-11-24
JINING UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0005] The purpose of the present invention is to overcome the deficiencies in the performance and preparation methods of the existing carbonitride coating tools, and provide a SiNbCN multi-component gradient composite coating tool and its preparation method in combination with the advantages of the multi-component composite coating structure

Method used

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  • SiNbCN multi-element gradient cutting tool with composite coating and preparation method thereof

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Embodiment 1

[0022] The SiNbCN multi-element gradient composite coating tool and its preparation method of the present invention, the tool is a common machine chuck blade, the base material is: cemented carbide P10, the coated tool is sequentially from the inside to the outside of the tool base, Ti transition layer, SiNbC transition layer and SiNbCN multi-element gradient composite coating with gradient nitrogen content. The deposition method is a composite coating method of unbalanced magnetron sputtering + arc plating. Two unbalanced magnetron sputtering SiNbC composite targets and two arc plating Ti targets are used for deposition. First, the Ti transition layer is deposited by arc plating, and then the SiNbC transition layer and SiNbCN multi-layer gradient composite coating with gradient nitrogen content are deposited by unbalanced magnetron sputtering method. The specific steps are as follows:

[0023] (1) Pre-treatment: Polish the surface of the tool base to remove surface oil, rust ...

Embodiment 2

[0030] The present invention SiNbCN multi-element gradient composite coating cutting tool and its preparation method, the cutting tool is a common reamer, the cutting tool matrix material is: M2 high speed steel, the coated cutting tool is the cutting tool matrix, Ti transition layer, SiNbC transition layer in sequence from inside to outside And SiNbCN multi-element gradient composite coating with gradient nitrogen content. The deposition method is a composite coating method of unbalanced magnetron sputtering + arc plating. Two unbalanced magnetron sputtering SiNbC composite targets and two arc plating Ti targets are used for deposition. First, the Ti transition layer is deposited by arc plating, and then the SiNbC transition layer and SiNbCN multi-layer gradient composite coating with gradient nitrogen content are deposited by unbalanced magnetron sputtering method. The specific steps are as follows:

[0031] (1) Pre-treatment: Polish the surface of the tool base to remove im...

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Abstract

The invention belongs to the field of machining cutting tools, and particularly relates to a SiNbCN multi-element gradient cutting tool with a composite coating and a preparation method thereof. The SiNbCN multi-element gradient cutting tool with the composite coating sequentially comprises a cutting tool base body, a Ti transition layer, a SiNbC transition layer and a SiNbCN multi-element gradient composite coating from insider to outside, wherein the nitrogen content gradient of the SiNbCN multi-element gradient composite coating is gradually changed. Firstly, arc plating is adopted to deposit a Ti transition layer, and then an unbalanced magnetron sputtering method is adopted to deposit the SiNbC transition layer and the SiNbCN multi-element gradient composite coating with the gradually-changed nitrogen content gradient. The SiNbCN ultrahard carbon nitride compound coating can obviously improve the cutting machining property of the cutting tool because two kinds of elements of Si, Nb and the like are simultaneously added into the coating and the nitrogen content gradient of the coating structural components is gradually changed. The SiNbCN multi-element gradient cutting tool with with composite coating has very high hardness and roughness, good anti-diffusion wear resistance, a capability of resisting plastic deformation and an excellent character of friction and wear.

Description

technical field [0001] The invention belongs to the field of mechanically manufacturing metal cutting tools, in particular to a SiNbCN multi-element gradient composite coating tool and a preparation method thereof. Background technique [0002] Coated tools can combine the excellent properties of the tool base material and the coating, which not only maintains the good toughness and strength of the base, but also has high hardness and good anti-friction and wear resistance of the coating, improves the performance of the base material, and broadens its application range and longevity. With the development of high-speed cutting, the cutting heat generated in the cutting process has much higher wear and tear on the tool than conventional cutting, so the hardness, strength, wear resistance, toughness and impact resistance of the tool material, as well as high red hardness and Chemical stability has higher requirements. It is difficult for traditional single coating materials t...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C23C14/35C23C14/32C23C14/16C23C14/18C23C14/06
CPCC23C14/352C23C14/0084C23C14/0635C23C14/0664C23C14/16C23C14/18C23C14/325
Inventor 宋文龙崔祥府王首军张璇
Owner JINING UNIV
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