WRINKLING BEHAVIOR IN HYDROFORMING OF UNSYMMETRICAL TUBULAR PART

摘要：

Geometrical analysis, numerical simulation and experiment were conducted to investigate wrinkling behavior in hydroforming of unsymmetrical tubular part. The influence of wrinkle parameters on the average thickness reduction rate was demonstrated using geometrical analysis. The wrinkling process and forming results of different loading paths were analyzed especially by means of FE simulation. It is shown from the experiment and simulation results that the unsymmetrical tubular part could be formed through the method of useful wrinkles. The thickness of the sound part is not uniform along the axial direction in the forming area. The internal pressure is the key factor to form the useful wrinkle. The axial stress is near zero in the expanding zone for useful wrinkles. By the method of useful wrinkle, process window of unsymmetrical tubular part can be enlarged for tube hydroforming.

关键词： Hydroforming internal high pressure forming wrinkle unsymmetrical tubular part

作者: XIAOSONG WANG YINGXUE YAO SHUIAN YUAN

作者单位: School of Materials Science and Engineering, Harbin Institute of Technology, Harbin, Peoples Republ School of Mechatronics Engineering, Harbin Institute of Technology, Harbin, Peoples Republic of Chi

会议类型: 国际会议

会议名称: 第五届先进材料与加工国际会议(Fifth International Conference on Advanced Materials and Processing ICAMP-5)

会议地点: 哈尔滨

会议语种:英文

页码: 1937-1942

在线出版日期: 2008-09-03（万方平台首次上网日期，不代表论文的发表时间）