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磨削力由切屑变形力和摩擦力构成。在这种认识的基础上我们建立了新的磨削力的数学模型。它由两项组成,分别相应于切屑变形力和摩擦力。试验测定了磨削不同工件材料时磨削用量与磨削力之间的关系,试验结果与建立的磨削力模型相符合。从切屑变形力与摩擦力两方面分析了切向磨削力与法向磨削力的比值,大体上应在0.2～0.59范围内。磨削不同工件材料时,切向磨削力与法向磨削力的比值的实测值在这个范围内。根据建立的磨削力模型,讨论了当量切削厚度的意义、高速磨削的适用范围等问题。
Grinding force by the chip deformation force and friction composition. Based on this understanding, we have established a new mathematical model of grinding force. It consists of two components, corresponding to chip deformation and friction. The relationship between the amount of grinding and the grinding force when grinding different workpieces was tested. The test results are consistent with the established grinding force model. The ratio of tangential grinding force to normal grinding force is analyzed from the chip deformation force and friction force, which should be in the range of 0.2 ~ 0.59. Grinding different workpiece materials, the tangential grinding force and the normal grinding force ratio of the measured value in this range. According to the established grinding force model, the significance of equivalent cutting thickness and the applicable scope of high speed grinding are discussed.