Transactions of Materials and Heat Treatment

Title：Study on microstructure and properties of hot stamping door anti-impact beam

Authors： XU Hong SHEN Yong-bo MENG Jia LI xin GU Zheng-wei

Unit： Jilin University

KeyWords： microstructure properties hot stamping impact beams

ClassificationCode：TG306

year,vol(issue):pagenumber：2011,36(6):24-27

Abstract：

The door anti-impact beam made of steel B1500HS produced by Baosteel Company was hot stamped. Metallographic analysis, tension strength, hardness test and C-NCAP were used for testing the microstructure, mechanical properties and side rigidity, and also especially testing the hardness of five typical positions of the beam. The results show that the microstructure of the formed parts is ideal lath martensite, the tensile strength is greater than 1500 MPa, the hardness of the five typical positions are above 450HV, and the microstructure and properties meet fully the requirements from motor factory. The experimental results not only verify the rationality of the technology of the hot stamping, but also establish the foundation for researching and development of productions and molds of hot stamping in the future.

Funds：

“高档数控机床与基础制造装备”科技重大专项资助项目(2009ZX04014-072-01)；吉林省科技发展计划资助项目(20080507)；吉林大学基本科研业务资助项目（20090309）；吉林大学基本科研业务资助项目(20090318)

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