Computer Aided Design of Heat Treatment for AISI P20+Ni Mold Steel with Good Machinability
来源期刊：材料热处理学报2004年第5期
论文作者：HU Xin-bin GAO Wen HE Yan-lin LI Lin
关键词：AISI P20+Ni mold steel; Thermo-Calc software; heat treatment; machinability;
摘 要：Computer aided design of heat treatment for AISI P20 mold steel with good machinability is attempted to proceed by the commercial software package Thermo-Calc (TCP+DICTRA). Through experimental and theoretical analysis of phase transformation during heat treatment, further knowledge of designing proper heat treatment is obtained. Then the machinability of AISI P20+Ni steel under given heat treatment condition is studied and the influencing factors to their machinability are analyzed. It is shown that heat treatment designed by computer simulation of carbide transformation is applicable to AISI P20+Ni steel with good machinability; AISI P20+Ni steel with tempered sorbite treated by quenching &tempering has optimal machinability; normalizing at the temperature of 910℃ & tempering can avoid cracking and result in acceptable machinability in small thickness module.
HU Xin-bin1，GAO Wen3，HE Yan-lin1，LI Lin1
(1.Dept. Mater. Sci. & Eng., Shanghai University, 149 Yanchang Road, Shanghai 200072 China;
2.Dept. Mechanical Engineering, Hubei Polytechnic University, Wuhan, 430068, China;
3.Shanghai No. 5 steel Co.,LTD of Shanghai Baosteel Group Co., Shanghai 200940, China)
摘要:Computer aided design of heat treatment for AISI P20 mold steel with good machinability is attempted to proceed by the commercial software package Thermo-Calc (TCP+DICTRA). Through experimental and theoretical analysis of phase transformation during heat treatment, further knowledge of designing proper heat treatment is obtained. Then the machinability of AISI P20+Ni steel under given heat treatment condition is studied and the influencing factors to their machinability are analyzed. It is shown that heat treatment designed by computer simulation of carbide transformation is applicable to AISI P20+Ni steel with good machinability; AISI P20+Ni steel with tempered sorbite treated by quenching &tempering has optimal machinability; normalizing at the temperature of 910℃ & tempering can avoid cracking and result in acceptable machinability in small thickness module.
关键词:AISI P20+Ni mold steel; Thermo-Calc software; heat treatment; machinability;
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