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一般来说,缓进成型磨削大多用在大磨削余量的情况下,在工件毛坯上直接磨削,一次成型至零件尺寸。这样无需用铣削或刨削等方法对型面进行预加工,可以省去一道工序,提高生产效率。但有些成型零件,由于其工艺要求的特殊性,无法省去预加工工序,如:为了提高直槽表面的耐磨性,需要在精加工前对侧面和底面进行渗碳处理,由于渗碳层很薄,必须对直槽预加工后才能渗碳。对于这类零件,缓进磨削仍是有使用价值的,特别是在这种情况下,磨削余量减小,普通砂轮也可使用。
In general, slow shape grinding mostly used in the case of large grinding allowance, grinding directly on the workpiece blank, a shape to the size of the parts. This eliminates the need for milling or planing and other methods of pre-processing of the surface, you can save a process and improve production efficiency. However, some molded parts, because of the special requirements of their processes, can not omit the pre-processing processes, such as: In order to improve the wear resistance of straight groove surface, the need for finishing the bottom of the side and bottom carburizing treatment, carburizing layer Very thin, must be straight groove pre-processing before carburizing. For such parts, slow grinding is still valuable, especially in this case, reduce the grinding allowance, ordinary grinding wheel can also be used.