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分析了小直径立铣刀后刀面的磨损规律及特点 ,提出采用后刀面磨损带宽度VB和后刀面磨损带面积AVB作为衡量刀具磨损程度的评价指标。小直径立铣刀渐进磨损试验结果表明 :每一刀齿后刀面和副后刀面的VB和AVB变化曲线与车刀的典型磨损过程曲线相似 ,即存在初期磨损、正常磨损和急剧磨损阶段。
The wear rules and characteristics of the flank face of the small diameter end mill were analyzed. It was proposed to use the flank wear band width VB and the flank wear band area AVB as the evaluation index to evaluate the tool wear degree. The results of gradual wear test of small diameter end mills show that the curves of VB and AVB of each cutter flank and sub-flank face are similar to the typical wear process curve of turning tool, that is, there are initial wear, normal wear and rapid wear stage.