板材成形中的技术革命

提出板材成型技术中存在技术革命。第一次技术革命以板材成形从工场走向工厂为标志;第二次技术革命以实验成形性评定和实验变形分析为标志;第三次技术革命以理论成型性评定及成型CAD/FMS的出现为标志,它是原材料工业迎接材料科学技术革命的一条有效途径。 板材成型成为一个科学领域必然要与板材生产密切结合,这就提出了发展板材系统工程的需要。板材系统工程的基本内容是:(a)板材生产,(b)板材成型,(c)板材冶金过程与板材成形过程的协同。 回顾计算机辅助成型性分析和工艺优化的发展,提出了计算机辅助战形性分析体系、计算机辅助成形工艺优化体系及板材成型学科体系并给出了这三种体系的框图。

Revolutionary Developments in Sheet Metal Forming Technology

The research and development of sheet metal forming is thought as a good way through which metallurgical industry will be developed to meet the needs of the revolution in material science and technology. Three stages of revolutionary developments in sheet metal forming industry have been differenciated. The mark of the first revolution is that sheet metal forming was operated with machines and dies in a factory instead of manual operation in a workshop) the second revolution is indicated by the assessment of process and formability derived from experiment,the study of theoritical formability and the foundation of cAE/FMS are the indications of the third revolutionary development in sheet metal forming. Since sheet metal forming, as a engineeing science, has got to marry sheet metal processing, a concept of SYSTEM ENGINEERING in sheet Metal (SESM) has been put forward,which covers: (a) sheet metal processing; (b) sheet metal forming;(c) coupling between metallugical processing(e.g. make-ing process, rollng process etc.) and forming process of metal.Computer-aided analysis of formability and computer-aided optimization and modelling of forming process are reviewed, and their schedules are illustrated. Furthermore, the comprehensive structure of sheet metal forming as a independent subject is presented.