摘要
介绍了某车型A柱热成形件在工业化中的转角开裂问题,冲压成形性仿真分析零件不存在开裂的风险,但零件实际工业化中开裂。开裂主要发生在外凸转角且有长法兰面的位置,通过对比零件开裂位置成形状态与冲压仿真分析参数,分析了问题产生的原因,总结了热成形零件转角开裂问题的影响因素,总结了此类零件冲压成形性仿真分析策略,分别从产品和工艺角度阐述了解决方案。
This article introduced corner cracking of A-pillar hot-stamped part of a vehicle model. Simulation analysis reveals no cracking crisis in stamped part, whereas parts crack in actual industrialization. Cracking mainly incurs at the convex corner with long flange surface. The cause of cracking was analyzed by comparing forming status of parts at cracking position and stamping simulation & analysis parameters, the factors leading to corner cracking of hot-stamped parts were summarized, and simulation & analysis strategy of such parts in stamping was also summarized, the solution of corner cracking was introduced both in product and process perspectives.
作者
许天宇
李天奇
Xu Tianyu;Li Tianqi(ZEEKR Company of GEELY Auto,Ningbo 315000)
出处
《汽车工艺与材料》
2023年第3期35-38,共4页
Automobile Technology & Material
关键词
热成形零件
ALSI镀层板
转角
开裂
Hot-stamping part
ALSI coated steel plate
Corner fillet
Crack
