With the development of the auto industry, the springback defect of the formed autobody panel becomes more and more intractable, which gets to be the interest of both auto industry and academia.

• 同时随着汽车工业的发展，覆盖件冲压成形中回弹问题变得越来越棘手，已引起了世界汽车工业界和学术界的广泛关注。