Factors Affecting the Tooth Surface Finish of the Inner Gear Rings for Coal Cutters

In order to analyze the reason why tooth surface finish of the inner gear rings for coal cutters can not meet the standard requirement, a series of experimental studies are carried out on the gear-shaping cutter and the corresponding cutting parameters. It is found that the tooth surface finish can not reach the standard after machining with each cutting parameter by using a M2 high-speed steel cutter. Using a M42 high-speed steel cutter + Balchas coating, the tooth surface finish under each cutting parameter can meet the standard requirement. Combining with the requirements of machining efficiency and tooth surface finish, the matching cutting parameters are proposed. This study has guiding significance for improving the tooth surface finish of the inner gear rings for the coal cutters. (paper)