低碳低成本约束下箱体零件加工路线优化方法

针对箱体零件工艺设计过程中工艺路线的低碳低成本优化问题，分析了复杂箱体零件的加工特征。在加工工步排序原则和机械加工工艺路线的基础上，根据多色集理论构建了工步排序问题的“特征-工步”和“特征-面孔”围道布尔矩阵，提出了以最低总碳排放（低碳）和最低加工成本（低成本）为优化目标的机械加工工艺路线多目标优化方法，并将改进的遗传算法应用到求解工步排序的问题中，从而得到最优解。以某型号箱体零件为例，验证了所提优化方法的有效性和可行性。

Optimization Method of Process Routes for Housing Parts under Low-carbon and Low-cost Constraints

Aiming at optimizing the low-carbon and low-cost of process routes during the processes of process design for housing parts, the machining features of complex housing parts were analyzed. On the basis of machining step sequencing principles and machining process routes, according to the polychromatic sets theory, the “feature-step” and “feature-face” contour Boolean matrixes of the step sequencing problem were constructed. A multi-objective optimization method of machining process routes was proposed, which took the lowest total carbon emissions(low-carbon) and minimum total processing costs(low-cost) as the optimization objectives. And the optimum solution was obtained by applying improved genetic algorithm to solve the machining step sequencing problem. A housing part was taken as an example to verify the effectiveness and feasibility of the proposed optimization method.