轧机传动梅花轴上的四个半圆槽,我厂是在三吨锤上用锻造方法加工出来的。梅花轴有两种,一种是中间有台阶,半圆槽不通头的,另一种是半圆槽通头的,见图1。前一种轴用φ230毫米圆钢料单件锻出,后一种轴用200毫米方钢料一次锻出两三件,然后用锯床切断。锻造过程见图2,预锻模和终锻模如 Plum mill shaft drive four semicircular groove, I plant is used in the three-ton hammer forged out of processed. Plum shaft there are two, one is the middle of a step, semi-circular groove headless, and the other is the semi-circular groove head, see Figure 1. The former kind of shaft with φ230 mm steel forging a single piece, the latter with a 200 mm square steel forging two or three, and then cut with a saw. Forging process shown in Figure 2, forging die and forging die