Transactions of Materials and Heat Treatment

Title：Research status and advances of life assessment method for cold forging die

Authors： Zhang Xinhe Zhuang Xincun Zhao Xingfeng Xiang Hua Zhao Zhen

Unit： Shanghai Jiao Tong University Hitachi (China) Research & Development Corp.

KeyWords： cold forging die damage model life assessment failure

ClassificationCode：TB3

year,vol(issue):pagenumber：2016,41(8):7-11

Abstract：

The main failure modes and crucial factors influencing on failure of cold forging die were introduced. Life assessment models of cold forging die were emphasized based on strain, stress and energy considered the influence of stress and strain state, fatigue damage regulation, material properties of cold forging die and pre-stress by foreign researchers. The forging die life was assessed from different angles and compared with real values, and the results of research on damage models and life assessment of cold forging die were introduced further. Finally, it was pointed out that there were still a lot of studies to carry out establishing effective damage models and life assessment methods, and outlooks were put forward through experimental studies, damage models and life assessment methods.

Funds：

国家自然科学基金资助项目（51575345）

张新和（1989-），男，硕士研究生庄新村（1980-），男，博士，副研究员

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