Numerical Simulation and Parametric Study of UOE Pipe Forming Process
The UOE process is widely recognized as an effective approach to manufacture large-diameter submerged-arc welding pipes.During the UOE process,the plate is crimped along its edge,pressed into U and O shape,welded closed and then expanded to obtain a circular pipe.In this study,the mechanical properties tests are carried out on the API X80 pipeline steel to establish the constitutive model.A two-dimensional finite element model of the UOE forming process is established under plane strain assumption.The deformed geometry of different forming steps and the distribution of equivalent plastic strain are obtained.The model is validated in practical manufacturing by comparing the forming quality,which shows a significant coherence in their geometric configurations.In particular,the effect of process parameters on the forming quality is analyzed.Those parameters are the yield strength of the plate,the location of C-die,the initial location of U-rollers,the displacement of U-rollers,the location of V-anvil,the final spacing between O-punch and O-die.The main forming quality includes the opening after O-forming,the ovality after pre-welding and expansion.The relation curves of parameters versus forming quality are obtained and illustrated.
UOE Pipe Numerical Simulation Parametric Study Forming Quality
REN Qiang ZOU Tian-xia JI Zong-chen LI Da-yong PENG Ying-hong HAN Jian-zeng WANG Xiao-xiu LI Xin-wen
School of Mechanical Engineering,Shanghai Jiaotong University,Shanghai 200240,China School of Mechanical Engineering,Shanghai Jiaotong University,Shanghai 200240,China;State Key Labora Baoshan Iron & Steel Co.,Ltd,Shanghai 201900,China
国际会议
沈阳
英文
538-546
2013-07-06（万方平台首次上网日期，不代表论文的发表时间）