基于ABAQUS的GH4169高温合金铣削参数优化仿真

Simulation Study on Milling Parameters Optimization of GH4169 Superalloy Based on ABAQUS

由于GH4169镍基高温合金加工效率低、刀具磨损严重、切削成本高以及实际加工过程中很难直观获得观测数据,因此基于ABAQUS建立了三维铣削模型,通过正交试验进行铣削参数优化,研究切削工艺参数即切削速度v_(c)、切削深度a_(p)、每齿进给量f_(z)对GH4169高温合金铣削过程中铣削力和铣削温度的影响。结果表明,切削深度a_(p)对切削力影响最大,切削速度v_(c)对切削力影响最小;切削速度v_(c)对温度影响最大,切削深度a_(p)对温度影响最小;考虑到切削效率,最优的工艺参数为v_(c)=90 mm/s,a_(p)=2 mm,f_(z)=0.3 mm/z。

Due to the low machining efficiency,serious tool wear,high cutting cost and difficult to obtain the observed data in the actual machining process of GH4169 nickel base superalloy,a three-dimensional milling model was established based on ABAQUS,and the milling parameters were optimized through orthogonal experiments.The effects of cutting parameters,such as cutting speed v_(c),cutting depth a_(p) and feed rate per tooth f_(z),on the milling process of GH4169 nickel base superalloy were studied the influence of milling force and milling temperature in the milling process.The results show that the cutting depth a_(p) has the greatest influence on the cutting force,and the cutting speed v_(c) has the least influence on the cutting force;the cutting speed v_(c) has the greatest influence on the cutting temperature,and the cutting depth a_(p) has the least influence on the temperature;considering the cutting efficiency,the optimal process parameters are v_(c)=90 mm/s,a_(p)=2 mm,f_(z)=0.3 mm/z.