Thickness Distribution of a Hydroformed Y-shape Tube
The process of hydroforming a Y-shape tube was investigated through numerical simulation and experiments. Characteristics of three different forming stages were studied. Thickness distribution of these three stages and the thickness of typical location that varies with internal pressure during forming process were analyzed when the calibration pressure was 136MPa. It is shown that thickness distribution of the leftward fillet transition region is the thickest, the rightward takes the second place and the top of the protrusion is the thinnest after forming. The influence of different calibration pressures on the thickness distribution was studied through numerical simulation. It is indicated from the simulation results that with the increase of calibration pressure, the highest thickening rate is not obviously changed, however, the highest thinning rate increased significantly.
Hydroforming Y-shape tube Internal pressure Thickness Numerical simulation
D.M.CHENG B.G.TENG B.GUO S.J.YUAN
School of Material Science and Engineering, Harbin Institute of Technology, Harbin 150001, P.R.China
国际会议
郑州
英文
2007-10-23（万方平台首次上网日期，不代表论文的发表时间）