柔性滚弯成形工艺中边波的控制方法

Controlling Method for Edge Wave in Flexible Roll Forming

建立了柔性滚弯成形数值模拟模型,分析了道次数目、变形路径及道次间距等主要工艺参数对边波的影响规律,并研究了边波控制方法.结果表明:变形路径对边波的形成影响很大;增加道次数目和道次间距,都可以减弱边波效应,通过合理设计变形路径,能够有效控制边波的产生.

A novel flexible roll forming method, which is a complex process of repetitive loading, was pro posed for manufacturing large curved and thin-walled metal plates. Edge wave is one of the significant de- fects in flexible roll forming due to its complex forming variables. A finite element model was established to analyze the effect of main forming variables, such as forming path, the number of forming stations and the distance between stations, on edge wave in flexible roll forming. The simulation results show that forming path has a great influence on edge wave. The increase of the number of roll stations and the dis tance between roll stations could result in reducing edge wave.