1060铝板两道次渐进成形外缘翻边路径优化  

Optimization on outer edge flanging path for 1060 aluminum sheet in two-pass incremental forming

作　　者：刘金杰 高锦张[1] 金志浩 郑璐恺 Liu Jinjie;Gao Jinzhang;Jin Zhihao;Zheng Lukai(Jiangsu Key Laboratory of Advanced Metallic Materials,School of Materials Science and Engineering,Southeast University,Nanjing 211189,China;College of Mechanical Engineering,Nanjing Institute of Technology,Nanjing 211189,China)

机构地区：[1]东南大学材料科学与工程学院江苏省先进金属材料高技术研究重点实验室,江苏南京211189 [2]南京工程学院机械工程学院,江苏南京211189

出　　处：《锻压技术》2023年第3期80-87,共8页Forging & Stamping Technology

基　　金：先进数控技术江苏省高校重点建设实验室开放基金项目(KXJ05017)。

摘　　要：运用数值模拟与实体实验相结合的研究方法,设计并优化出一种两道次渐进成形外缘翻边路径,相较于单道次成形,该路径适用的加工范围更广。研究结果表明,使用圆弧直线两道次渐进成形外缘翻边路径,可以加工单道次无法成形的毛坯直径较大的翻边制件,提升制件的壁厚分布状态,在将第1道次的加工直径设置为d_(m)+(D-d_(m))/4时制件的成形质量最好。根据有限元模拟实验,分析制件的壁厚分布曲线和平均壁厚值,拟合出扩孔两道次渐进成形圆孔翻边高度的表达式,并通过实体实验验证,实现了对两道次渐进成形外缘翻边高度的预测。A two-pass incremental forming outer edge flanging path was designed and optimized by using the research method combining numerical simulation and physical experiment,and compared with the single-pass forming,it was applicable to a wider processing range.The research results show that the use of the outer edge flanging path with circular arc and straight line in two-pass incremental forming can process the flanging parts with larger blank diameters that cannot be formed in a single pass and improve the wall thickness distribution of workpiece,and the forming quality is the best when the processing diameter of the first pass is set to d_(m)+(D-d_(m))/4.According to the finite element simulation experiment,the wall thickness distribution curve and the average wall thickness value of workpiece were analyzed,and the expression of the round hole flanging height for the two-pass incremental forming of reaming was fitted.Through the verification of physical experiments,the prediction of the outer edge flanging height in the two-pass incremental forming is realized.

关 键 词：渐进成形 外缘翻边 成形路径 翻边高度 壁厚分布 

分 类 号：TG379.6[金属学及工艺—金属压力加工]