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文中对轴承套圈锻件在压力机上锻造的四种加工工艺方法作了对比。认为挤压成形穿孔工艺是比较理想的工艺,其优点是:1.锻造金属流綫比较理想;2.减小了料芯,材料利用率高达85％;3.消除了毛边,节省了一台切边压力机和一名操作工人,同时消除了因模座位置产生的扭矩,设备受力比较均衡;4.挤压冲头是圆柱形体,没有侧压力产生,挤压力量小,又因成形和挤压在一个工序完成,提高了穿孔冲头的寿命;5.穿孔时坯料不翻转,因而操作简单,易于今后实现压力机自动化。还对在压力机上热挤压轴承套圈锻的工艺与模具设计作了详细说明。附图20幅，表6个。
In this paper, four kinds of processing methods for forging the bearing ring forging on the press are compared. It is considered that the extrusion forming perforation process is an ideal process and has the following advantages: 1. The forging metal flow line is ideal; 2. the material core is reduced by up to 85%; 3. the burr is eliminated and one is saved Trimming press and an operating worker, while eliminating the torque generated by the mold base position, the device is more balanced by force; 4 extrusion punch is a cylindrical body, no side pressure, the extrusion force is small, And extrusion in a process to complete and improve the life of punch punch; 5 billet blank does not flip, so easy to operate, easy to automate the press in the future. Also on the press hot extrusion bearing rings forging process and mold design made a detailed description. Figure 20, Table 6.