板料冲压回弹及解决措施
Springback in Sheet Metal Stamping and Its Solutions
程 呈， 胡建华， 尚会森， 黎 铭
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作者单位：（武汉理工大学 材料科学与工程学院， 湖北 武汉 430070）
中文关键字：板料； 冲压； 回弹
英文关键字：metal sheet; stamping; springback
中文摘要：回弹是板材成形过程中不可避免的普遍现象，直接影响到冲压件的尺寸精度和零件最终形状。本文系统地归纳了国内外学者提出的预测和优化板料回弹的各种方法，并从材料选择、结构设计、工艺设计、模具间隙及结构的合理性等方面提出了减小和消除回弹的措施。
英文摘要： Springback is an inevitably phenomenon in sheet metal forming processes and directly affects the precision and the final shape of stamping parts. Different scholars proposed different methods to prediction and optimization the springback and some of them were summarized in the paper. Various methods to reduce or eliminate springback such as material selection, structural design, processes design, die gap and die structures optimization were proposed.