7075铝合金铣削参数多目标优化  

On Multi-objective Optimization of 7075 Aluminum Alloy Milling Parameters

作　　者：齐萌 QI Meng(Kaifeng Technician College,Kaifeng 475000,Henan,China)

机构地区：[1]开封技师学院,河南开封475000

出　　处：《黄河水利职业技术学院学报》2022年第4期49-54,共6页Journal of Yellow River Conservancy Technical Institute

摘　　要：为了实现对铝合金精密零件的高质量加工,通过铣削试验和表面形貌观察,分析了切削速度、主轴转速、背吃刀量和侧吃刀量对7075铝合金表面粗糙度的影响规律。基于多元线性回归分析方法,建立了表面粗糙度预测模型。以铣削过程中铣削用量为约束条件,建立了以材料去除率最高和表面粗糙度最低为目标的多目标优化模型,利用多目标线性规划法求出多目标优化模型的最优解,并通过试验验证了最优解的正确性。In order to achieve high quality machining of aluminum alloy precision parts, the influence law of cutting speed, spindle speed, back cutting capacity and side cutting capacity on surface roughness of7075 aluminum alloy was analyzed through milling test and surface morphology observation. The prediction model of surface roughness was established based on multiple linear regression analysis. A multi-objective optimization model with the highest material removal rate and the lowest surface roughness was established by taking the amount of milling as the constraints. The optimal solution of the multi-objective optimization model was obtained by using the multi-objective linear programming method, and the correctness of the optimal solution was verified by experiments.

关 键 词：7075铝合金 铣削参数 表面粗糙度 预测模型 多目标线性规划 最优解 

分 类 号：TG54[金属学及工艺—金属切削加工及机床]