不均匀压下面内弯曲成形过程的有限元模拟研究  

FEM SIMULATION OF IN PLANE BENDING OF STRIP METAL UNDER UNEQUAL COMPRESSING

作　　者：鲜飞军[1] 杨合[1] 

机构地区：[1]西北工业大学材料科学与工程学院,西安710072

出　　处：《机械工程学报》2000年第7期69-73,共5页Journal of Mechanical Engineering

基　　金：国家自然科学基金资助项目 !( 594 750 59);航空科学基金!(94G53111)资助项目

摘　　要：金属板带不均匀压下面内弯曲成形 ,能够发展成为一种利用材料塑性变形不均匀、可充分挖掘材料成形潜力的先进塑性加工方法。然而 ,这方面的研究还不深入 ,在国内尚属开创性工作。对锥辊实现的这一成形过程 ,建立了刚塑性有限元模型 ,对模拟中需要解决的关键问题提出了算法或处理技术 ;在此基础上 ,开发了相应的模拟系统并用试验验证了其可靠性。结果表明 ,所开发的模拟系统可靠 。In plane bending of a strip metal under unequal compressing can be developed into an advanced precision forming process with good flexibility for size changes,high efficiency,low consumption,and high forming limit.However,it appears that there has not been sufficient research of the process,and the process is a new area to be developed within China.For the process conducted with two conical rollers,the rigid plastic finite element numerical model is established and some key technology problems related to the simulation are solved.And then the corresponding FEM simulation software system is developed.Experiments carried out show that the developed simulation system is reliable.So it provides an effective and advanced approach to further and systematically studying the deformation mechanism and forming laws of the process.

关 键 词：不均匀压力 面内弯曲 有限元法 锥反带 塑性加工 

分 类 号：TG386.32[金属学及工艺—金属压力加工]