The strain of lid Inner panel in stamping process has been analyzed with CGA (circle grid analysis) and FLD in different material.The risk zone and forming style have also been studied.

• 摘要采用网格应变分析技术，研究不同材料性能下轿车行李箱盖内板冲压成形过程中应变分布，指出了变形过程中可能存在的危险区域，以及这些区域内材料的变形方式；