基于双刀车削工艺的加工参数多目标优化

Optimization of Multi-objective Machining Parameters Based on Double-Tool Turning

为解决LF2铝合金挡片零件车削加工变形量大和表面质量差的问题,提出双刀车削加工工艺。通过理论分析,得出加工参数是控制双刀车削加工结果的关键因素;利用拉丁超立方体法设计试验方案,通过对试验结果进行趋势分析和统计分析,探究加工参数对加工结果的影响规律;基于响应面法建立单目标预测模型,利用JMP软件的等高线刻画器模块对加工参数进行多目标优化求解,并对优化结果进行实际加工验证。结果表明:采用满足多目标优化的双刀车削加工参数,可精准控制LF2铝合金挡片零件加工变形量和表面粗糙度;所提方案具有良好的实际工程应用价值。

In order to solve the problem of large machining deformation and poor surface quality of LF2 aluminum alloy flapper parts,a double-tool turning process was proposed.Through theoretical analysis,the machining parameters were the key factors to control the double-tool turning results;the Latin hypercube method was used to design the test scheme,through trend analysis and statistical analysis for the test results,the influences of the machining parameters on the machining results were explored;a single-objective empirical formula was established based on the response surface method,and the contour profiler module of the JMP software was used to solve the multi-objective optimization of the machining parameters,and the optimization results were verified in actual machining.The results show that by using double-tool turning machining parameters that meet multi-objective optimization,the precise control of the machining deformation and surface roughness of LF2 aluminum alloy flapper parts can be achieved;the proposed scheme has practical engineering applications value.