Transactions of Materials and Heat Treatment

Title：Influence of heat treatment of steel H13 on punch fatigue fracture based on ANSYS

Authors： Gao Chaoping Feng Zaixin Su Xiaobo Ma Zichao

Unit： North University of China

KeyWords： ANSYS steel H13 fatigue rupture heat treatment

ClassificationCode：

year,vol(issue):pagenumber：2016,41(4):122-125

Abstract：

Through the ANSYS finite element analysis software, the fatigue analysis of steel H13 was predicted as 21520 times under fatigue coefficient of 0.420008, and the period of the actual production design was shortened. The relationship curves of quenching hardness, tempering hardness and temperature were obtained respectively by means of heat treatment test. When the quenching temperature was 1050 ℃, the mould cracked less and yielded proper hardness. When the temper temperature is 550-650 ℃ and the hardness of the die is 42-45 HRC，the performance of punch is good. The actual production shows that with optimized heat treatment, the service life of the mould is greatly improved, and the fatigue life increases from 3000 times to more than 6000 times. After working for a period of time, the internal stress of punch can be eliminated by low tempering, and its fatigue life can be maintained up to 8000 times.

Funds：

山西省科技攻关资助项目（20120321035-04）

高超平（1990-），男，硕士研究生

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