Transactions of Materials and Heat Treatment

Title：Experimental study on formability of bulging-incremental hybrid forming of conical parts for steel sheet DC04

Authors： Chen Jiping Zou Jun Shen Xiang Lyu Changfu Li Zhiqing Qian Jianqing

Unit： Anhui University of Technology

KeyWords： incremental forming bulging hybrid forming conical parts steel sheet DC04

ClassificationCode：TG113.26

year,vol(issue):pagenumber：2017,42(11):148-151

Abstract：

To improve the forming limit and processing efficiency, a hybrid forming of incremental forming combined with bulging was presented. Then, the forming limit angles, strain variations and wall thickness distribution of hybrid forming and pure incremental forming for steel sheet DC04 conical parts were investigated by experiment of hybrid forming of bulging and incremental forming. The results show that the forming limit angles of hybrid formed conical parts with preformed heights of 15 mm and 25 mm are 66° and 69° respectively. While the maximum thickness reduction positions for bulging forming are in the local area of incremental forming, and the maximum thickness reduction direction of bulging is opposite to that of incremental forming, the wall thickness of conical parts becomes more uniform, and the formability of conical parts processed by hybrid forming of bulging and incremental forming could be improved.

Funds：

安徽省自然科学基金资助项目(1508085ME78)；安徽省大学生创新创业训练计划项目(201610360130)

作者简介：陈继平(1975-)，男，博士，副教授 E-mail：leavejames9443@163.com 通讯作者：钱健清(1963-)，男，硕士，教授 E-mail: qjqqjq@ahut.edu.cn

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