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采用刀具耐用度、切削里程、材料去除总量对同一组难加工材料进行正交试验,结果表明:采用刀具耐用度作为评价指标进行优化时,其结果往往是对应于最小的切削用量,高的刀具耐用度并不对应于高的切削能力和切削效率,优化结果存在较大的局限性;切削里程和材料去除总量在实际生产中分别代表已加工表面的形成量和总切削量,可以较好地反映切削参数与应用效果之间的关系,作为评价指标时,两者较刀具耐用度的评价更为有效。不同指标的评价结果不同,应用时需根据实际情况进行有针对性的选择。
The results of the orthogonal test of the same group of difficult-to-machine materials by the tool durability, cutting mileage and total material removal show that when the tool durability is used as the evaluation index to optimize, the result is often corresponding to the minimum cutting load and high Tool durability does not correspond to high cutting capacity and cutting efficiency, the optimization results have greater limitations; cutting mileage and total material removal in actual production, respectively, representing the formation of the processed surface and the total amount of cutting, you can compare Good reflection of the relationship between cutting parameters and application effects, as an evaluation index, both more effective than the tool durability evaluation. Different indicators of the evaluation results are different, the application needs to be based on the actual situation of the targeted choice.