基于双侧齿圈压边的厚板精密冲裁成形力学分析  

Mechanical analysis on precision blanking forming of thick plate using bilateral gear-ring blank-holder

作　　者：苏春建[1] 闫楠楠[1] 王清[2] 张晓东[1] 陆顺[1] 

机构地区：[1]山东科技大学机械电子工程学院,青岛266590 [2]山东科技大学土木工程与建筑学院,青岛266590

出　　处：《塑性工程学报》2016年第6期51-57,共7页Journal of Plasticity Engineering

基　　金：国家自然科学基金资助项目(51305241);山东省高等学校科研计划项目(J12LA03);山东省泰山学者建设工程专项项目(tshw20130956)

摘　　要：针对普通冲裁方式获得的厚板冲裁件常存在尺寸精度低、断面质量差及翘曲严重等问题,采用双侧齿圈压边的方式对厚板精密冲裁成形进行模拟和力学分析,建立了厚板的精冲数学模型及有限元模型,研究了成形中应力应变问题及静水应力、材料流动的规律,并通过对6、8、10和12mm厚板进行有限元模拟,探讨了不同板厚对双侧齿圈压边精冲的影响,最后进行实验验证,分析结果表明双侧齿圈压边冲裁方式能够增加厚板剪切变形区的静水压力,充分发挥材料的塑性,提高厚板冲裁件断面质量。Considering poor dimensional accuracy and section quality as well as severe warping for thick-plate blanking part by common blanking method, a bilateral gear-ring blank-holder method was adopted and the precision blanking forming of the thick plate was simulated and mechanically analyzed. The analytical model of precision blanking and finite element model of thick plate considering bilateral gear-ring blank-holder was established, then the stress, strain, hydrostatic stress and flow of material in blanking were researched. The influence of different thicknesses on the blanking was discussed by using 6, 8, 10 and 12mm thick plate. Finally, the experimental verification was performed. The results show that the method of the bilateral gear-ring blankholder can increase the hydrostatic pressure of the thick plate shear deformation zone, make full use of material plasticity and improve the quality of the section of thick plate.

关 键 词：厚板 双侧齿圈压边 精密冲裁 力学分析 

分 类 号：TG386[金属学及工艺—金属压力加工]