汽车立柱加强板成形分析

目的轻量化是汽车零部件设计的发展方向,汽车立柱因需要在碰撞中承受外力而变形,并为其他零件提供足够强度和刚度的安装点,一般都使用高强钢材料制造,以达到轻量化的要求。方法对采用DP590高强钢制造的典型结构汽车B柱加强板进行了工艺分析,以提出高强钢立柱加强板零件的设计及成形工艺优化方案。通过AutoForm软件的板料仿真技术,对采用590DP高强钢的典型汽车B柱加强板的冲压工艺进行了数值模拟分析。结果成功预测了板料成形过程中可能存在的起皱、开裂等问题。结论分析结果为汽车立柱加强板冲压工艺提出了改进方案,实现了模具的设计及优化。

Forming Analysis of a Automotive Pillar Stiffener

Objective Lightweight is the future orientation of automobile parts design. Automotive pillar is usually made of high-strength steel material to meet the lightweight requirement because it is subjected to external force and deformation during collision and meanwhile provides the mounting points with sufficient strength and stiffness for other parts. Methods The forming process of a typical automotive B-pillar stiffener made of DP590 was analyzed, in order to propose optimized scheme for designing and forming of high-strength stell pillar stiffener parts. Based on Autoform simulation software, numerical simulation analysis was conducted for the stamping process of a typical automotive B-pillar stiffener made of DP590. Results The possible problems of wrinking and cracking occuring in the forming process were successfully predicted. Conclusion The analysis results suggested improved scheme for the stamping process of automotive pillar stiffener and realized the design and optimization of die.