粉末烧结体闭式热模锻致密与成形的有限元分析

Hot die forging process is to obtain the required shape, size, with a range of mechanical properties of die forgings forging production process.The deformation is in the high temperature under the action of external force on the workblank..This paper choose closed hot die forging process on sintered forming and densification process research.We use DEFORM-3D software to simulated the regularity of forming dense and stress-dense under the different process parameters (incloding Coefficient of friction, initial relative density, velocity forging).The simulation results show that: when the other conditions are the same, the greater the initial relative density, the smaller friction coefficient and the larger forging speed of forging forming result in the better the density effect.Thus providing an important reference value to select the best of the actual production process parameters.