依托于新车型的开发，基于热压成形特性及零部件性能要求，选取某车型B柱加强板进行热压成形技术的可行性分析。通过分析热成形钢的材料及工艺特性，考察采用热成形钢后的B柱加强板侧碰过程中的侵入量、侵入速度、车体加速度以及顶部加压性能的优劣势，提出了结构优化方向，归纳了热压成形技术的关键点。分析结果表明，应用热压车型技术对工程化影响不大，可实现白车身轻量化效果并可大大提升白车身侧碰被动安全性能。%Depended on the development of new car models, based on the hot stamping characteristics and parts performance requirements, the feasibility of B pillar hot stamping technology was analyzed. From the analysis of press-hardened steel and processes characteristics, the intrusion measurement, intrusion speed, acceleration contrast of car-body and the top of the pressure in the case of side impact and vehicle roll over were reviewed, and the direction for the amelioration of structure was pointed out, the key points of the hot stamping technology was concluded. The results show that the application of hot stamping technology has little effect on the engineering, and can realize the lightweight effect and improve the passive safety performance of side impact greatly.
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