Unequal Deformation Characteristics of In-plane Roll-bending of Strip with Considering Spread Effects

摘要：

The spread contributes to the material flow significantly in the in-plane roll-bending of strip and affects the forming precision of the process. To realize precision forming, the unequal deformation characteristics considering spread effects are addressed by employing finite element simulation. The results show that: (1) the rolling pressure is nonuniformly distributed along the ring width with the maximum value occurs near but not at the outer rim of the formed ring part; (2) there is a spreading region near the outer rim, and the spread becomes larger with an increase in average reduction; (3) the nonlinear elongation of the strip along the width direction induces the inner radius to vary at a quadratic law with increasing average reduction. The inner radius reaches a minimum value of 34. lmm with an average reduction of 25.2％.

关键词： Spread effects In-plane roll-bending Unequal deformation characteristics Finite element simulation

作者: Zhijun LI He YANG Heng LI Ruijie GU

作者单位: State Key Laboratory of Solidification Processing, School of Materials Science and Engineering,North State Key Laboratory of Solidification Processing, School of Materials Science and Engineering,North

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: 378-382

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）