摘要
一款新能源铝车身开发过程中,热成型B柱总成结构应用替代铝材B柱结构,通过对整车侧碰CAE过程分析,通过对逐步满足侧碰分析目标。热成型材料因其可以利用单件热成形零件取代多层焊接结构,在汽车车身制造中应用越来越广泛。热成型零件的断面结构,是其能否达到高强度与轻量化两方面要求的关键。采用热冲压成型技术制得的冲压件屈服强度可高达1200MPa,且高温成型几乎没有回弹,具有成型精度高、成型性好等突出优点,因此引起业界的普遍关注并迅速成为汽车制造领域内的热门技术,广泛用于车门防撞梁、前后保险杠等安全件以及A柱、B柱、C柱、中通道等车体结构件的生产。
In the development process of a new energy aluminum body,the hot-formed b-column assembly structure shall be applied to replace the aluminum b-column structure.Through the analysis of the CAE process of the vehicle side impact,the goal of side impact analysis shall be gradually met.Thermoplastic materials are widely used in automobile body manufac-turing because they can replace multi-layer welded structure with single thermoplastic parts.The cross section structure of hot forming parts is the key to meet the requirements of high strength and light weight.The hot stamping forming technology of stamping yield strength can be as high as 1200 mpa,and high temperature forming almost no rebound,with forming such outstanding advantages as high precision,good formability,thus caused widespread concern in the industry and quickly became the hot technology in the field of automobile manufacturing,anticollision beam is widely used in door,front and rear bumpers and other security and A pillar,B pillar,C pillar,such as channel in the production of car body structure.
作者
欧阳伟刚
Ouyang Weigang(Research institute, Chery New Energy Vehicle Co., Ltd., Anhui Wuhu 241000)
出处
《汽车实用技术》
2019年第13期164-167,175,共5页
Automobile Applied Technology
关键词
热成型工艺
侧碰
刚度
B柱
Thermoforming process
side impact
stiffness
B pillar
