Abstract As in machine forging process with upsetter to forge partial of bars,L/D in part of thermal deformation is normally controlled within 10, and theoretical data should be within 1415.
在利用平锻机使棒料局部成形的平锻生产工艺中,热变形部分的长比(L/D)通常控制在10以内,理论允许值不超过14~15。