摘要
模具型面的回弹补偿是冲压模具设计中的难题。首先阐述了模具型面回弹补偿理论,提出一种利用有限元数值模拟技术进行模具型面回弹补偿设计的方法;然后以某工业螺旋叶片为研究对象,结合实冲试验验证了回弹数值模拟预测的精度;最后通过对叶片初始模具型面的两次补偿,得到了满足叶片成形精度要求的模具CAE型面,并将叶片模具型面CAE模型转化为CAD模型,实现了基于回弹补偿的模具型面"CAD→CAE→CAD"双向集成设计。
Springback compensation for die face is the problem of die design for sheet metal forming. Firstly, a new designing method for springback compensation based on numerical simulation and die face compensation theory was introduced. Secondly, by means of an industrial twist blade, the precision of springback predicting was proved by experiment. Finally, the compensated die face of the blade was obtained after twice compensations. Subsequently, the hi-directional integrated design of ＂CAD→CAE→CAD＂ for die face was achieved by transforming the CAE into CAD model.
出处
《锻压技术》
CAS
CSCD
北大核心
2008年第6期86-90,共5页
Forging & Stamping Technology
基金
国家自然科学基金资助项目(50775102)
江苏省教育厅“青蓝工程”资助项目(苏教师〔2007〕2号)
关键词
模具型面
回弹补偿
叶片
die face
springbaek compensation
blade
