Optimization of Micro-slot Position Parameters of Micro-groove Tool Based on NSGA-Ⅱ
In the cutting process of high-temperature nickel base alloy GH4169,the more significant cutting force and cutting temperature will accelerate tool wear and reduce tool life.Reasonable placement of micro-groove weaving in the tool temperature field can effectively improve the tool's cutting performance and extend tool life.To reasonably place the micro-groove into the tool temperature field region,the parameters of micro-groove edge distance,length,and the angle between the micro-groove and the leading cutting edge are optimized.Based on the empirical formula of cutting force,the tool's cutting force and maximum cutting temperature are established as a function of the micro-groove position parameters.With the help of the NSGA-Ⅱ algorithm,the multi-objective optimization model of the cutting force and the maximum cutting temperature is established.The optimized results are as follows:the optimal combinations of the micro-groove position parameters of the micro-groove tool are an edge pitch of 0.11mm,the length of the micro-groove of 1mm,and an angle of 46.1°.Compared with the original device,the optimized micro-groove tool's cutting force and temperature are effectively reduced,with better cutting performance.
high-temperature nickel-based alloytool temperature fieldmicro-groove textureNSGA-Ⅱ algorithm