锻压技术

热冲压成形车门防撞梁组织和性能研究

英文标题：Study on microstructure and properties of hot stamping door anti-impact beam

作者：徐虹沈永波孟佳李欣谷诤巍

单位：吉林大学

分类号：TG306

出版年,卷(期):页码：2011,36(6):24-27

摘要：

使用宝钢生产的热冲压用钢B1500HS,热冲压成形某车车门防撞梁。运用金相分析、拉伸试验、硬度测试和C-NCAP等手段,测试了成形件的组织、力学性能和侧面刚性,并特别测试了防撞梁5个典型位置的硬度。结果表明, 成形件的微观组织为理想的板条状马氏体,抗拉强度达到1500MPa以上,5个典型位置硬度都在450HV以上,组织和性能完全符合主机厂的要求。以上试验结果不仅验证了热成形技术的可行性,同时也为今后热冲压产品及其模具的研发奠定了基础。

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.

基金项目：

“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)

参考文献：

[1]Heinz Steinbeiss, Hyunwoo So, Thomas Michelitsch,et al. Method for optimizing the cooling design of hot stamping tools[J]. Production Process, 2007,1(2):149-155.

[2]Peng C , Muammer K. Simulation of springback variation in forming of advanced high strength steels[J] . Journal of Materials Processing Technology , 2007 , 190 (123) : 189-198.

[3]Turetta A, Bruschi S. Investigation of B1500HS formability in hot stamping operations[J]. Journal of Materials Processing Technology, 2006, 177(1):396-400.

[4]Merklein M, Lecher J. Investigation of the thermo-mechanical properties of hot stamping steels[J]. Journal of Materials Processing Technology, 2006, 177(1), 452-455.

[5]谷诤巍, 单忠德, 徐虹,等. 汽车高强度钢板冲压件热成形技术研究[J]. 模具工业, 2009, 35(4): 27-29 .

[6]Eriksson M, Oldenburg M, Somani M C, et al. Testing and evaluation of material data for analysis of forming and hardening of boron steel components[J].Modelling Simul. Mater. Sci. Eng., 2002, 10：277-294.

[7]Malek N, Vitoon U, Ulrich P, et al.A numerical and experimental investigation into hot stamping of boron alloyed heat treated steels[J]. Steel Research International, 2008, 79(2)：77-84.

[8]Hoffmann H, So H, Steinbeiss H. Design of hot stamping tools with cooling system[J]. CIRP Annals-Manufacturing Technology, 2007, 56(1)：269-272.

[9]Kerstrm P. Numerical simulation of a thermo- mechanical sheet metal forming experiment[D]. Lulea。：Lulea。 University of Technology, 2006.

[10]谷诤巍，徐勇，徐虹,等.超高强度钢板热成形过程的数值模拟[J]. 吉林大学学报：工学版，2010，40(增刊):228-232.

[11]徐伟力.热冲压技术特征(ppt). http://wenku.baidu.com/view/4e524736f111f18583d05ae9.html.2011,1.8.

[12]季多闻,倪建华,羊军.汽车车门防撞梁开发综述[J].上海汽车,2011,（11）：23-27.

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