Q235—A钢管弯曲回弹角建模与分析  

Modeling and analyzing the bending re-spring angle of pipe Q235-A

作　　者：刘金武[1] 倪小丹[1] 高为国[1] 

机构地区：[1]湖南工程学院,湘潭411101

出　　处：《现代制造工程》2003年第5期51-52,共2页Modern Manufacturing Engineering

摘　　要：分析Q2 3 5—A钢管弯曲回弹过程 ,利用残余应力分布规律、静力矩平衡条件、变形协调条件等回弹理论推出回弹曲率和回弹角的计算公式 ,计算其回弹角并与实测值比较。比较结果表明 ,弯曲角度和弯曲半径与管子直径比值改变时 ,误差不同。在一定条件下 ,误差在 5Analyzes the changing process of the stress and strain of pure plastic bending re spring for pipe According to the function on stress of re spring,the condition of the balance of moment and coordination of deform,calculating formulas of the re spring angle and the re spring curve of pipe are inferred.The experiamental result shows that formulas are so precise that it can be applied in engineering.

关 键 词：钢管 弯曲 回弹 回弹角 建模 残余应力 回弹曲率 数控弯管机 

分 类 号：TG386.31[金属学及工艺—金属压力加工]