sizrcn gradient composite coating tool and preparation method thereof

A composite coating and cutting tool technology, applied in the coating, metal material coating process, vacuum evaporation coating and other directions, to ensure the surface quality, excellent resistance to plastic deformation, good resistance to diffusion wear effect.

Active Publication Date: 2019-08-06
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 SiZrCN gradient composite coating tool and its preparation method in combination with the advantages of the multi-component composite coating structure

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  • sizrcn gradient composite coating tool and preparation method thereof

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Embodiment 1

[0022] The present invention is a SiZrCN gradient composite coating tool and a preparation method thereof. The tool is an ordinary milling insert, and its base material is: cemented carbide P20. Layer and Nitrogen Content Gradient Gradient Composite Coatings of SiZrCN. The composite coating method of unbalanced magnetron sputtering and arc plating was adopted during deposition, and two unbalanced magnetron sputtering SiZrC composite targets and two arc-plating Ti targets were used. First, the Ti transition layer is deposited by arc plating, and then the SiZrC transition layer and the SiZrCN gradient composite coating with gradient nitrogen content are deposited by the non-equilibrium magnetron sputtering method. The specific steps are as follows:

[0023] (1) Pre-treatment: Polish the surface of the tool base to remove impurities such as oil stains and rust on the surface, then put it into alcohol and acetone in turn, ultrasonically clean for 25 minutes each to remove oil stai...

Embodiment 2

[0030] The present invention is a SiZrCN gradient composite coating tool and a preparation method thereof. The tool is an ordinary face milling cutter. The tool base material is high-speed steel W18Cr4V. and Nitrogen content gradient gradient composite coating of SiZrCN. The deposition method is a composite coating method of unbalanced magnetron sputtering and arc plating. During deposition, two unbalanced magnetron sputtering SiZrC composite targets and two arc-plating Ti targets are used. First, the Ti transition layer is deposited by arc plating, and then the Ti transition layer is deposited by arc plating. The non-equilibrium magnetron sputtering method is used to deposit the SiZrC transition layer and the SiZrCN gradient composite coating with gradient nitrogen content. The specific steps are as follows:

[0031] (1) Pre-treatment: Polish the surface of the tool base to remove impurities such as oil stains and rust on the surface, then put it into alcohol and acetone in t...

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Abstract

The invention belongs to the field of mechanical manufacture cutting cutters, and in particular relates to a SiZrCN gradient composite coating cutter and preparation method thereof. The coating is the SiZrCN gradient composite coating prepared by adopting a composite coating method of unbalanced magnetron sputtering and electric arc plating; the surface of the coating cutter is SiZrCN gradient composite coating with gradually-changed gradient of nitrogen content, a Ti transition layer and a SiZrC transition layer are sequentially arranged between a cutter base body and the coating. By adopting the SiZrCN ultra-hard carbon-nitrogen compound coating, because two metals including Si and Zr are added in the coating at the same time, the nitrogen content of the coating structure component is gradually changed in a gradient manner, so that the cutting machining performance of the cutter can be improved. The coating has high hardness and heat stability, and also has good diffusion prevention and wear prevention performances, good plastic deformation resistance ability and excellent friction and wear resistance property. In the cutting process, the cutter can effectively prevent the occurrence of cracking of cutting edges and hot cracks, guarantee the machining surface quality of the workpieces, and prolong the service life of the cutter by more than 70%.

Description

technical field [0001] The invention belongs to the field of mechanically manufacturing metal cutting tools, in particular to a SiZrCN gradient composite coating tool and a preparation method thereof. Background technique [0002] Modern metal cutting requires tools with high cutting speed, high feed rate, long life, high precision and other excellent characteristics. As a traditional tool material, high-speed steel or cemented carbide is more and more difficult to meet the development needs of the modern machining industry. Therefore, tool surface coating technology came into being. Tool surface coating technology is a material surface treatment technology developed in recent decades. Under proper technological conditions, the coating has high hardness, low friction coefficient, and good bonding force with the base material, so it can greatly improve the service life of metal cutting tools. At present, the use of coated tools in industrialized countries has accounted for...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C23C14/35C23C14/02C23C14/06
CPCC23C14/0036C23C14/022C23C14/025C23C14/0635C23C14/0664C23C14/352
Inventor 宋文龙马育栋王首军
Owner JINING UNIV
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