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Titanium-based metal ceramic, manufacturing method thereof and cutting tool

A technology for cutting tools and manufacturing methods, which is applied in the direction of manufacturing tools, metal processing equipment, and cutting tools for lathes, etc., and can solve problems such as the preparation method needs to be improved, yield strength, red hardness resistance to plastic deformation, and wear resistance. , to achieve the effects of excellent red hardness, enhanced wear resistance, good toughness and strength

Active Publication Date: 2021-07-30
GANZHOU ACHTECK TOOL TECH +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] However, it is difficult for ordinary cermets to achieve an ideal balance of yield strength, red hardness, plastic deformation resistance, and wear resistance, and only one or several of the above properties can be improved; different working parts often have different performance requirements. It is difficult to meet this working condition if a single material such as existing heat-resistant metals, ceramics or cermets is used.
Therefore, the current cermet cutting tool and its preparation method for turning steel still need to be improved.

Method used

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  • Titanium-based metal ceramic, manufacturing method thereof and cutting tool
  • Titanium-based metal ceramic, manufacturing method thereof and cutting tool
  • Titanium-based metal ceramic, manufacturing method thereof and cutting tool

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Experimental program
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Effect test

Embodiment 5

[0106] Example 5 of the present application is a method for manufacturing a titanium-based cermet cutting tool, comprising:

[0107] S100: Ingredients

[0108] The binder phase 2 metal powder, titanium-containing cubic phase compound and tungsten carbide powder are selected as raw materials, and the mass percentages of each raw material are: Co+Ni powder 15wt%, tantalum carbide 5%, and titanium-containing cubic carbonitride 60wt% , the balance is tungsten carbide, the sum of the mass percentages of each raw material is 100%, and the powder particle size is <2μm;

[0109] S200: Mixed milling

[0110] Co+Ni powder, tantalum carbide, tungsten carbide, titanium-containing cubic carbonitride and molding agent are ball milled, paraffin wax is used as molding agent (content is 2.6wt%), absolute ethanol is used as solvent, and drying is obtained after ball milling to obtain Mixture powder;

[0111] S300: Compression molding

[0112] Compressing the mixture powder to obtain a green...

Embodiment 6

[0120] Embodiment 6 of the present application is a method for manufacturing a titanium-based cermet cutting tool, comprising:

[0121] S100: Ingredients

[0122] The binder phase 2 metal powder, titanium-containing cubic phase compound and tungsten carbide powder are selected as raw materials, and the mass percentages of each raw material are: Co+Ni powder 17wt%; niobium carbide 9%, titanium-containing cubic carbonitride 55wt% , the balance is tungsten carbide, the sum of the mass percentages of each raw material is 100%, and the powder particle size is <0.8μm;

[0123] S200: Mixed milling

[0124] Co+Ni powder, niobium carbide, tungsten carbide, titanium-containing cubic carbonitride and molding agent are ball milled, paraffin wax is used as molding agent (content is 2.8wt%), absolute ethanol is used as solvent, and drying is obtained after ball milling to obtain Mixture powder;

[0125] S300: Compression molding

[0126] Compressing the mixture powder to obtain a green ...

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Abstract

The invention discloses a titanium-based metal ceramic, a manufacturing method of the titanium-based metal ceramic and a cutting tool. The titanium-based metal ceramic comprises a hard phase and a binding phase. The hard phase is at least one of carbides, nitrides or nitrogen carbides of at least one metal element in the fourth group, the fifth group and the sixth group of the periodic table of elements mainly comprising titanium; the binding phase is an iron group element; the titanium-based metal ceramic is provided with a surface layer area located on the outer surface and a homogeneous area located in the titanium-based metal ceramic and connected with the surface layer area; the surface layer area is provided with a nitrogen-poor binding phase-rich layer, the thickness of the nitrogen-poor binding phase-rich layer is 1-7 microns, and the average content of the binding phase in the nitrogen-poor binding phase-rich layer is 1.0-3.0 times of the content in the homogeneous area; and the content of the binding phase and the content of a non-titanium-containing cubic phase are distributed in a gradient mode from the surface layer area to the homogeneous area. The invention aims to prepare a functional composite material with slow performance change caused by continuous change of tissues.

Description

technical field [0001] The invention relates to cermets, in particular to a titanium-based cermet, a manufacturing method thereof and a cutting tool. Background technique [0002] Ti(C,N)-based cermets are made of soft transition metals (Ni, Co) with ceramic matrix phases such as TiC, TiN, Ti(C,N) and secondary carbides (such as Mo2C, WC, TaC, etc.) bonded high hardness, high wear resistance composite material, which is widely used in the field of high-speed precision cutting. [0003] However, it is difficult for ordinary cermets to achieve an ideal balance of yield strength, red hardness, plastic deformation resistance, and wear resistance, and only one or several of the above properties can be improved; different working parts often have different performance requirements. It is difficult to meet this working condition if a single material such as existing heat-resistant metal, pottery or cermet is adopted. Therefore, the current cermet cutting tools and their preparati...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B22F5/00B22F3/14B22F3/24C23C14/06C22C29/02C22C29/16C22C1/05B23B27/14
CPCB22F5/00B22F3/14B22F3/24C23C14/0641C22C29/02C22C29/16C22C1/051B23B27/14B22F2005/001B22F2003/242Y02P10/25
Inventor 钟志强薛彦殷磊谭卓鹏朱赞亮邱联昌
Owner GANZHOU ACHTECK TOOL TECH
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