关键词: 硬态旋风铣削, 工艺能耗, 工艺性能, 多目标优化

Abstract: To research the coordination optimization between machining energy and machining performance for hard whirlwind milling of screw,the multi-objective optimization method considering specific energy consumption,surface roughness and surface residual stress was proposed.According to the Box-Behnken experiments,specific energy consumption,surface roughness and surface residual stress were modeled with Response Surface Methodology (RSM) respectively.Based on the above models,the multi-objective optimization model was established by taking machining parameters of whirlwind milling as input variables,and specific energy consumption,surface roughness and surface residual stress as optimization objectives.The Non-dominated Sorting Genetic Algorithm Ⅱ (NSGA-Ⅱ) was used to solve the multi-objective optimization model,and the effectiveness of optimization method was demonstrated by comparing the experimental data with optimization results.

Key words: hard whirlwind milling, machining energy, machining performance, multi-objective optimization problem