Effects of Hydraulic Pressure Loading Paths on the Forming of Automobile Panels by Hydro-Mechanical Deep Drawing Based On Numerical Simulation
As a part of automobile panel, outer door has a few characteristics, such as complex shape, big structure size and high quality forming needs. As a result, outer door needs multiple process and high costs by conventional drawing. In order to get rid of crack and forming deficiency in the stamping process, the numerical simulations of hydro-mechanical deep drawing (HDD) process was carried out. By using large nonlinear dynamic explicit analytical software ETA/Dynaform5.6, the effects of chamber pressure variations on the formability, and the effects of different loading paths on the wall-thickness distribution of the part were analyzed. The results indicate that under the reasonable chamber pressure loading path, the HDD can effectively control crack and forming deficiency, improve the thickness distribution uniformity, increase the die fittingness and stiffness. Complicated shapes car panel can be formed by one process with high quality.
automobile outer door HDD numerical simulation chamber pressure loading path
LIU Xiaojing WANG Cong LI Feng LIU Penghui WANG Fei
College of Materials Science and Engineering arbin University of Science and Technology Harbin,China College of Materials Science and Engineering Harbin University of Science and Technology Harbin,Chin
国际会议
The 6th International Forum on Strategic Technology(IFOST 2011)(第六届国际战略技术论坛)
哈尔滨
英文
104-107
2011-08-22（万方平台首次上网日期，不代表论文的发表时间）