目前我国机械制造业的锻压车间制造深孔锻件的方法很多,一般在液压机上将深孔冲压出来,获得所要求的尺寸与公差,其主要工艺过程如下,见图1。 1.按图纸和工艺规程要求的尺寸与公差,切割下定长的毛料。 2.镦粗毛坯准备进行冲孔工序。 3.挤压毛坯成形,内孔冲压出并压延好。 At present, China’s machinery manufacturing forging workshop forging deep hole forging a lot of ways, usually in the hydraulic machine will be deep holes punched out to obtain the required dimensions and tolerances, the main process is as follows, shown in Figure 1. 1. According to the drawings and the requirements of the process size and tolerances, cut under the fixed length of wool. Upsetting blank ready for punching process. 3. Extrusion blank forming, the hole punched out and rolled well.