Method About Comprehensive Evaluation and Selection of Cutting Tools Based on the Profit Margin Model

A new method was put forward based on profit margins model and the respective tool cutting the same material in matching optimum cutting parameters. Results in evaluation and selection of cutting tool were achieved with the proposed method for the difficult machining materials titanium alloy Ti-1023. In the specific method, first the optimum cutting parameters matching to feed rate, cutting depth and cutting width were determined through experiments in cutting force and other constraints. Second the optimum cutting speed was determined through the shift method, and then tool life was obtained by experiment based on optimum cutting parameters, the material removal rate was calculated, and last evaluation and selection of cutting tools were implemented. The most appropriate S30 tool among 4 type tool in machining titanium alloy Ti-1023 was selected and the optimum cutting parameters corresponding to some material were effectively obtained.