轴对称带孔板坯拉深-翻孔复合成形的仿真与实验  

Simulation and experimental study for drawing-flanging compound forming of axisymmetric holed slab

作　　者：朱亨荣[1,2] 王志忠[1] 王镇柱[1] 胡成武[1] 

机构地区：[1]湖南工业大学机械工程学院,株洲412008 [2]湖南大学材料科学与工程学院,长沙410082

出　　处：《塑性工程学报》2013年第5期50-55,共6页Journal of Plasticity Engineering

基　　金：湖南省自然科学基金资助项目(12JJ9036);湖南省"十二五"重点学科资助项目

摘　　要：随着带孔板坯外径和预冲孔径的不同,筒形件的成形方式和变形性质也将有所不同,可能出现简单拉深、拉深-翻孔、翻孔-拉深、简单翻孔等多种复杂情况。为进一步了解坯料形状、尺寸与成形方式之间的关系,掌握其变化规律,实现对复合成形工艺的有效控制,以变形力学为基础对带孔板坯拉深-翻孔复合成形进行理论分析和实验,并采用DYNAFORM软件对不同孔径板料的成形过程进行仿真模拟。结果表明,仿真分析与工艺实验结果吻合。The forming and deformation properties of cylindrical part vary with perforated blank diameter and prefabricated aper- ture, which may show a variety of complex deformation modes such as drawing forming, drawing-flanging, flanging-drawing, and flanging forming. In order to understand the relation between shape and size of blank and forming, the paper researches the composite process of perforated blank from the view of theory and experiment to achieve effective technique control. Simulation a- nalysis for whole drawing forming process of plate with different aperture is performed by means of finite element. Results show that simulation analysis and process experimental are consistent.

关 键 词：拉深-翻孔 复合成形 数值模拟 实验 

分 类 号：TG386[金属学及工艺—金属压力加工]