摘要
为提高车身结构轻量化水平,对汽车白车身前机舱的传统一体式前围板进行了上、下分体不等厚设计。针对前围板上板的典型特点,即左、右两翼轮罩避让区域的拱起形状,提出浅拉延和整形的工艺,简化了冲压生产工序,大幅提升了材料利用率。为解决前围上板的整形起皱、单件刚度不足以及轮罩避让区域的焊接不良问题,通过冲压CAE分析、冲压实际生产、焊接质量检测等验证了分体式前围板上板的浅拉延和整形工艺的可行性。最后通过冲压、焊装及涂装的全工艺生产链收益核算,确认该分体式前围板具有成本优势,同时实现了低成本前围板浅拉延加整形工艺的量产。
In order to realize the lightweight of auto body,the traditional one-piece BIW dashboard panel is designed into two parts(the upper one and the lower one)with different thickness.According to the typical features of the front dashboard panel,namely the arch shape of the evacuation area of the wheel cover,this paper proposes shallow drawing plus reshaping to simplify stamping process and greatly improve material utilization rate.In order to address the issues of corrugation of dashboard upper panel,insufficient stiffness of single part and poor welding of evacuation area of the wheel cover,the paper verifies the feasibility of shallow drawing plus reshaping through stamping CAE analysis,stamping physical production and welding quality verification.The cost saving advantage of split-type front dashboard panel is confirmed by the cost accounting of the whole process chain(stamping,welding,coating).Finally the low-cost front dashboard panel is put into mass production with shallow drawing plus reshaping process.
作者
陈亮
刘伟
利晓林
李梦瑶
李钊文
Chen Liang;Liu Wei;Li Xiaolin;Li Mengyao;Li Zhaowen(GAC R&D Center,Guangzhou 511434)
出处
《汽车工艺与材料》
2025年第8期17-23,共7页
Automobile Technology & Material
关键词
白车身
前围板
冲压
材料利用率
冲压仿真
BIW
Dashboard panel
Stamping
Material utilization rate
Forming simulation
