counter blow hammer

For developing constitutive equation in superalloy In718 hammer forging process, the effect of the forging parameters, such as, strain, strain rate, deformation temperature, deformation steps, and the interval times between two steps, on the flow rule of turbo disc was analyzed in detail.

采用对复杂的多道次变形的应力－应变曲线进行简化的新思路，建立了能反映Ｉｎ７１８合金高应变速率锤击锻造过程中的应变、变形速率、变形温度、变形这次与间隙时间等参数间综合影响的本构方程。