The concept of cuttingtoollife-cycle management was put forward, and divided it into four phases: planning period, input time, serviceable life and discarding period.
提出了刀具全生命周期管理的概念，将刀具全寿命周期管理划分为计划期、投入期、使用期、报废期四个阶段。
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In many cases of stainless steel cutting operations with carbide tools, a toollife strongly depends on flank notch wear of depth of cut rather than average flank wear of main cutting edge.
Fortunately, the correct cutting speed can estimated with reasonable accuracy from tool-life graphs or form the Taylor tool life Relationship, provided that necessary data are obtainable.