Tribological peculiarity of galling position in deep drawing of square cup

摘要：

　　The high tensile steel sheet attracts attention in recent years.Galling occurs easily in the press forming processes of the high tensile steel sheet because of the high contact pressure.However,the galling behavior cant be predicted in the forming process yet.The object of this study is to clarify the galling mechanism and develop a prediction method of galling behavior in press forming.Experiments were carried out to investigate the galling behavior in the square cup drawing of a high tensile strength steel sheet.On the die surface,galling occurs at the bottom of the boundary between the straight and comer.On the drawn cup galling starts at the top of the same boundary.The variations of contact pressure,sliding distance and temperature were investigated by using FEM.It was found that galling occurs on the sheet surface position having the history of maximum temperature and at the moment just before sliding out from the die.

关键词： tribology galling square cup drawing high tensile strength steel

作者: Z.G.Wang M.X.Yang T.Soejima

作者单位: Department of Mechanical Systems Engineering,Gifu University,Yanagi-do 1-1 Gifu,501-1193,Japan

会议类型: 国际会议

会议名称: International Conference on Airworthiness & Fatigue -7th ICSAELS Series Conference(大飞机安全性能与疲劳国际会议)

会议地点: 北京

会议语种:英文

页码: 175-175

在线出版日期: 2013-03-24（万方平台首次上网日期，不代表论文的发表时间）