前轴精辊制坯过程的热力耦合有限元分析

Thermal-coupled FEM Analysis of Precision Roll Forging Performing of Front Axle

采用有限元软件Deform_3D,通过三维刚塑性热力耦合有限元方法模拟汽车前轴精制坯辊锻成形过程,分析了三道次辊锻过程中坯料的金属流动、温度场、模具受载情况,并将模拟得到的辊锻件与试验生产的辊锻件进行对照,结果一致,为进一步掌握前轴精密制坯辊锻成形机理、制订合理的工艺参数提供了可靠的理论依据。

The precision rolling forging performing deformation process of automobile front axle is simulated with finite element software Deforrn 3D by using three-dimensional thermo-mechanical coupled rigid-plastic finite element method （FEM）. The metal flow process, equivalent stress and strain field,temperature field and load status of rolling die are analyzed, and they are consistent with experiments. This provides a dependable theoretical basis for understanding the deforming mechanism and selecting reasonable parameters for the precision rolling forging performing of front axle.