我厂在加工300t折弯机的大型油缸时,摸索了一套在C61100普通车床上加工的成功经验,现介绍如下。 见附图,油缸材质45钢,调质250～280HB,原工艺是粗、精车后,再用磨轮架装在车床刀架上磨内孔,由于磨内孔时砂轮跳动太大,工件表面产生振纹,故未采用。后改用油石珩磨,再滚压,取得了满意的效果。 精加工的工艺过程如下: I plant processing 300t bending machine large cylinder, groping a set of C61100 ordinary lathe in the successful processing experience, are presented below. See the photo, the cylinder material 45 steel, quenched and tempered 250 ~ 280HB, the original technology is rough, fine car, and then use the wheel frame mounted on the lathe turret grinding hole, the grinding wheel bore too much when the hole surface, the workpiece surface Produce vibration, it is not used. After the honing with honing stone, and then rolling, and achieved satisfactory results. Finishing process is as follows: