Forward extruding for hollow pinion gear, compound extruding for housing gear and upending extruding for shaft gear and their forming conditions and processes were analyzed.

• 介绍了带孔小齿轮的正挤压直接成形、带壳小齿轮的复合挤压成形和带轴齿轮的镦挤成形等传统冷挤压方法，以及上述各类齿轮的冷挤压成形条件和工作过程。