In order to optimize the technology of press and lower the production cost,a two-stage floating elastic pressing structure at the anvil swage of the second punching die was adopted.

• 为优化冲压工艺,降低生产成本,第2副冲模采用了下模部分二级浮动弹压的结构,成功实现局部胀拉和翻边工艺以及压凸、弯曲、整形多道工序一次成形。