水平V形砧拔长方形截面毛坯的数值模拟

Numerical Simulation of Rectangular Crosssection Billets Forging with Horizontal V-shaped Anvils

应用一种新的锻造工艺——水平V形砧锻造法,通过有效控制锻件的纤维流向,改善了轴类锻件力学性能的异向性。水平V形砧锻造法在内部应力状态、金属纤维组织、锻件的整体性能、宏观几何形状等方面都优于普通平砧锻造法。对水平V形砧锻造法与普通锻造法进行的数值模拟比较证明,水平V形砧锻造法是控制轴类锻件力学性能的有效工艺手段。

The forging method with horizontal V-shaped anvils（HVA） was introduced to control fibrous tissue flow direction,to improve the anisotropy of mechanical properties of axial forgings. The forging method is superior to the common flat anvils（FA） forging method in inner stress states,metal tissue,overall properties and geometrical shapes of forgings. Numerical simulation comparison was conducted for the HVA forging method and the FA forging method,verifying the fact that the HVA forging method is an effective process to control the mechanical properties of axial forgings.