工程机械用类槽钢-引导轮轧制变形规律

Research on rolling deformation of class channel-guide wheel with engineering machinery

借助有限元分析软件ANSYS/LS-DYNA,定性的模拟分析工程机械用类槽钢-引导轮在轧制过程中的变形规律,通过实验室石膏辊轧制橡皮泥实验,对模拟结果进行验证以及对比分析。实验结果表明,类槽钢-引导轮的变形不均匀,主要是类槽钢槽底圆角处的变形速度过大,分布的应力应变较大所致。采用适当增大槽底圆角半径无助于应力应变分布情况的改善,而采用原始孔型设计,则可得到应力应变的最佳结果,得到合格产品。

By means of finite element analysis software ANSYS/LS-DYNA, the roiling process of mechanical engineering class channel-guide wheel was qualitatively analyzed. Through laboratory experiments of cast roiling plasticinc, the simulation results were verified and compared with the experimental results, which showed they were consistent. The experimental results indica- ted that the uneven deformation of class channel-guide wheel was mainly caused by the larger deformation velocity and distribution of stress and strain at the round corner of the groove bottom of the class channel. By properly increasing fillet radius of the tank bottom, the distribution of stress and strain was not improved. While the original design led to more reasonable results.