摘要
伴随着产品微型化的趋势,介观尺度下的加工技术发展和研究也得到了前所未有的重视。微冲压成形技术是一种最重要的微成形技术,由于受到尺度效应的影响,传统的成熟冲压成形理论不能直接应用于微冲压成形领域。文章介绍了有关微冲压技术的研究现状,详细分析了与微冲压成形工艺密切相关的材料模型、摩擦模型、数值仿真建模和加工设备等方面的技术特点,并结合相关研究成果对于材料流动应力应变关系建模提出了一些方法。
With the requirements of the miniaturization in electronics and other mini devices, Micro/Meso manufacturing technology research are widely emphasized. Micro/Meso stamping is an important with high productivity to form micro metal sheet parts. However the know-how in traditional stamping process can not be directly used in Micro/Meso stamping field because of so-called size effects. The state of art concerned with Micro/Meso stamping research in introduced here. Four kinds of research problems related with Micro/Meso stamping are material model, friction model, FEM simulation model, Micro/Meso stamping device and micro mould design which are detailed discussed. Some methods about flow stress modeling of Micro/Meso metal sheet is also introduced.
出处
《塑性工程学报》
EI
CAS
CSCD
北大核心
2007年第4期54-59,共6页
Journal of Plasticity Engineering
关键词
微细化
微冲压
尺度效应
miniaturization
Micro/Meso stamping
size effects
作者简介
彭林法，男，1977年生，上海交通大学，机械与动力工程学院，博士生，主要研究方向为车身数字化设计，车身制造工艺，介观尺度的微细加工与微成形。彭林法 E-mail：penglinfa@sjtu．edu．cn
