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Metal ceramic tool material and preparation method thereof

A tool material and cermet technology, applied in the field of cermets, can solve the problems of poor material stability, difficult control of metallographic structure, unsatisfactory cutting performance, etc., and achieve high bending strength, high cost performance and stable quality Effect

Inactive Publication Date: 2017-09-19
成都众鑫达超硬工具材料科技有限公司
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  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

Usually, it is added in the form of WC and TaC. After a large number of experiments by scientists, it is found that when WC and TaC are added in the form of (W, Ti, Ta) C solid solution, it can greatly improve the cutting performance of TiCN-based cermets. performance, but the phase structure components in its metallographic structure are not easy to control, the produced material has poor stability and unsatisfactory cutting performance

Method used

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  • Metal ceramic tool material and preparation method thereof
  • Metal ceramic tool material and preparation method thereof

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Embodiment 1

[0022] The cermet cutting tool material of the present embodiment contains 10 parts of Co, 8 parts of Ni, 10 parts of Mo in parts by mass. 2 C, 25 copies (W 0.3 Ta 0.22 Ti 0.48 )(C 0.75 N 0.25 ) and 50 parts of TiC 0.7 N 0.3 , where the chemical formula of the five-component solid solution is (W 0.3 Ta 0.22 Ti 0.48 )(C 0.75 N 0.25 ).

[0023] The preparation method of the cermet tool material specifically comprises the following steps:

[0024] (1) Calculated in parts by mass, weigh 50 parts of TiC respectively 0.7 N 0.3 , 25 copies (W 0.3 Ta 0.22 Ti 0.48 )(C 0.75 N 0.25 ), 7 parts of Co, 8 parts of Ni and 10 parts of Mo 2 C, mixing;

[0025] (2) Using hexane as the wet milling medium, ball milling for 70 hours to uniformly mix the raw materials, wherein the ball-to-material ratio is 4:1;

[0026] (3) Add wax and mix for 2 hours, dry and granulate, press into blade blanks, and sinter under low pressure for 1.5 hours at 1470°C and 4-6 MPa to obtain cermet t...

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Abstract

The invention relates to a cermet tool material. The cermet cutting tool material contains 6-10 parts of Co, 6-10 parts of Ni, 6-10 parts of Mo2C, 20-40 parts of quinary solid solution and 30-62 parts of TiC0.7N0.3 in parts by mass. The chemical formula of the pentad solid solution is (W0.26‑0.33Ta0.19‑0.25Ti0.44‑0.54) (C0.70‑0.8N0.20‑0.30). The cermet cutting tool material of the invention has excellent mechanical properties, high bending strength, good toughness, greatly improved service life, and the service life is about 50% higher than that of traditional cutting tools, and has higher cost performance.

Description

technical field [0001] The invention belongs to the field of cermets, and in particular relates to a cermet tool material and a preparation method thereof. Background technique [0002] In order to improve the cutting performance of TiCN cermet tool materials, people often add WC and TaC to improve the wear resistance and high temperature red hardness of cermet tool materials, so as to expand the application range of cermet tools. Usually, it is added in the form of WC and TaC. After a large number of experiments by scientists, it is found that when WC and TaC are added in the form of (W, Ti, Ta) C solid solution, it can greatly improve the cutting performance of TiCN-based cermets. performance, but the phase structure components in its metallographic structure are not easy to control, the produced material has poor stability and unsatisfactory cutting performance. Contents of the invention [0003] The object of the present invention is to provide a cermet cutting tool m...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C22C29/04C22C1/05
CPCC22C29/04C22C1/051
Inventor 郭伟张平
Owner 成都众鑫达超硬工具材料科技有限公司
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