我厂轧钢机压下装置零件的大型花键孔,历年来都使用大型插床加工。由于加工量大、设备效率低,这道工序往往成为生产中的“拦路虎”。工人师傅面对这种情况很是着急,一致表示要自力更生,通过改革工艺,进行技术改造,来解决大型花键孔的加工难关。在工人、领导干部和技术人员的共 I plant rolling mill presses the large spline hole device parts, over the years have used large slot machine processing. Due to the large amount of processing, equipment, low efficiency, this process often become the production of “stumbling block.” Facing this kind of situation, the workers and workers are in a hurry. They all agreed that they should make their own efforts to solve the difficult problem of machining large spline holes through reforming the process and carrying out technological transformation. In the workers, leading cadres and technical staff of the total