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在车削加工中,一个零件的好坏,往往决定于最后的精车工序。精车是一个细致而又复杂的工序。除了应该根据工件的材料和技术要求等,来合理地选择刀具材料和几何参数外,还必须注意把机床调整好,刀具刃磨好。在加工过程中,还要聚精会神地仔细观察:譬如,在精车外圆时,两眼看着刀具和切屑;右手摸着已加工表面,检查着工件的光洁度;左手扶着大溜板上的手轮,防止因为轴与孔配合有间隙,或齿轮与齿条有间隙,当手轮上的小
In the turning process, the quality of a part often depends on the final finishing process. Fine car is a detailed and complex process. In addition to the workpiece materials and technical requirements should be reasonable to choose the tool material and geometric parameters, but also must pay attention to the machine to adjust well, the tool sharpening good. In the process of processing, but also attentively and carefully observed: for example, in the fine car cylindrical, the two looked at the tool and the chip; the right hand touched the machined surface, check the workpiece finish; left hand holding the hand on the big slide Wheel, to prevent because the shaft and hole with a gap, or gear and rack with gaps, when the hand wheel is small