Friction Effect in Hot Rolling of Large Rings with different sizes

摘要：

For hot rolling of large rings, the friction between a ring and rolls plays an important role in maintaining the stable forming of the process and quality of ring parts. The reasonable range of friction coefficient is determined analytically based on the stable forming condition, and a reliable coupled thermo-mechanical three-dimensional (3D) finite element (FE) model for the process is developed. The effect of friction on hot rolling of titanium alloy large rings with different sizes are explored, and the results obtained show that as friction coefficient increases, different rings have similar variation law: less metal flows to the axial direction of a ring and the spread distribution at the end plane of a ring becomes more uniform; the strain and temperature distributions tend to be less uniform; rolling force and rolling moment have little change.

关键词： hot rolling of large rings titanium alloy, friction finite element

作者: WANG Min

作者单位: Department of Material Engineering, Hubei University of Automotive Technology,Shiyan 442002, China

会议类型: 国际会议

会议名称: 2011 International Conference on Advanced Material Research(ICAMR 2011)(2011年先进材料研究国际会议)

会议地点: 重庆

会议语种:英文

页码: 487-491

在线出版日期: 2011-01-21（万方平台首次上网日期，不代表论文的发表时间）