车细长轴是车工经常遇到的任务,但由于工艺方法选择不当,引起车后的轴产生弯曲或不圆现象,常常造成废品。我厂经过多次试制改进,在普通车床上加工细长轴,摸索了一些经验。加工图1所示的长轴时,我们采取了如下工艺方法,达到了设计要求。现介绍出来供兄弟单位参考:一、工件的粗车和处理方法1.轴的粗车外圆留量2～3毫米,端面留量0.5～1毫米,然后进行调质处理。调质后,需进行人工校直,总长度內弯曲度应控制在0.3～0.5毫米以內。2.第二次进行粗车时,首先应修正两端顶尖孔,将带有 Car slender shaft is often encountered by the workers task, but due to improper selection of process methods, causing the car after the shaft bending or non-round phenomenon, often resulting in waste. After several trial improvement of our factory, the processing of slender shafts in ordinary lathe, groping for some experience. When processing the long axis shown in Figure 1, we have adopted the following process method to meet the design requirements. Now introduced for fraternal reference: First, the roughing of the workpiece and processing methods 1. Shaft rough car left 2 to 3 mm, 0.5 to 1 mm end retention, and then quenched and tempered. After conditioning, the need for artificial alignment, the total length of curvature should be controlled within 0.3 ~ 0.5 mm. 2. The second rough car, first of all should be amended at both ends of the top hole, with