锻压技术

基于数值模拟的方锥件侧壁和底部回弹分析

英文标题：Analysis on springback on side wall and bottom of square cone part based on numerical simulation

作者：文怀兴张斌史鹏涛杨新妮孙姝彤

分类号：TG386

出版年,卷(期):页码：2018,43(5):0-0

摘要：

针对AZ31B镁合金材料的方锥件的侧壁和底部回弹问题,利用Abaqus有限元软件，采用单因素实验法，研究了成形角、成形温度、下压量和板料底面面积这4种因素，对成形件的侧壁和底部回弹量的影响。结果表明：如果下压量越大、成形角越大，那么成形件侧壁回弹量越大；成形件底面积越大，成形件底部回弹量越大；如果成形温度越高，那么成形件侧壁的回弹量越小，反之亦然。成形件侧壁最大回弹量均发生在成形深度约为14~18 mm的位置，也就是成形深度中间偏下的位置，其回弹值在1.2~2.1 mm之间;成形件底部的最大回弹量出现在板料中心，其回弹值在0.6~1.1 mm之间。

To study springback on the side wall and bottom of square cone part made of magnesium alloy AZ31B, with the help of Abaqus finite element software, single factor experiment method was used to study the influences of four factors including forming angle, forming temperature, pressing amount and area of bottom sheet on the springback on the side wall and bottom of forming part. The results show that the greater the pressing amount is and the larger the forming angle is, the greater the springback amount is on the side wall of forming part. The greater the bottom area of forming part is, the greater the springback amount is on the bottom of forming part. If the forming temperature is higher, the smaller springback amount is on the side wall of forming part, and vice versa. The maximum springback on the side wall of forming part occurs at the position where the forming depth is about 14-18 mm, which is below the middle position of forming depth, and the springback value is 1.2-2.1 mm. The maximum springback on the bottom of forming part appears in the center of sheet and its springback value is 0.6-1.1 mm.

基金项目：

国家自然科学基金资助项目（51475366，50975229）

作者简介：文怀兴 (1957-)，男，博士，教授 Email：492808529@qq.com 通讯作者: 张斌(1993-)，男，硕士研究生 Email:496726767@qq.com

参考文献：

［1］文怀兴,刘桂芳,史鹏涛. AZ31B镁合金板热渐进成形的精度研究
［J］. 锻压技术,2017,42(4):59-62.

Wen H X, Liu G F, Shi P T. Study on the accuracy of hot forming of AZ31B magnesium alloy plate
［J］. Forging & Stamping Technology, 2017,42 (4): 59-62.

［2］文怀兴,刘桂芳,史鹏涛. 镁合金板热渐进成形方锥件侧壁回弹问题分析
［J］. 热加工工艺,2017,46(11):117-119,122.

Wen H X, Liu G F, Shi P T. Analysis of side wall bulging of squre taper parts of magnesium alloy sheetin hot incremental forming
［J］. Hot working Technology, 2017,46 (11): 117-119,122.

［3］史晓帆,徐岩,高霖,等.方锥形渐进成形制件误差补偿工艺研究
［J］. 中国机械工程,2012,23(18):2248-2252.

Shi X F, Xu Y, Gao L, et al. Research on error compensation technology of square cone shaped forming parts
［J］. China Mechanical Engineering, 2012,23 (18): 2248-2252.

［4］蒋磊. 金属板料单点渐进成形轨迹优化及数值模拟
［D］.济南：山东大学,2014.

Jiang L. Singlepoint Progressive Forming of Sheet Metal Trajectory Optimization and Numerical Simulation
［D］.Jinan:Shandong University, 2014.

［5］金玲玲. 多道次单点数控渐进成形技术研究
［D］.南京：南京航空航天大学,2014.

Jin L L. Multipass Singlepoint CNC Progressive Forming Technology
［D］. Nanjing:Nanjing University of Aeronautics and Astronautics, 2014.

［6］张国新，戴京东.金属板料单点渐进成形变形控制方法
［J］. 锻压技术，2013，38（6）:28-31.

Zhang G X, Dai J D. Single point incremental forming deformation control of sheet metal
［J］. Forging & Stamping Technology, 2013,38 (6): 28-31.

［7］Jamli M R,Ariffin A K,Wahab D A,et al. Integration of feed forward neural network and finite element in the drawbend springback prediction
［J］.Expert Systems with Application,2014,41(8):3662-3670.

［8］Inamdar M V,Date P P,Desai U B,et al.Studies on the prediction of springback in air vee bending of metallic sheets using an artificial neural network
［J］.Journal of Materials Processing Technology,2000,108(1):45-54.

服务与反馈：

【文章下载】【加入收藏】