Integration of process and production planning for turning parts, considering overtime

Integration of process planning and production planning functions is necessary to achieve superior overall system performance. This paper proposes a model for the integration of process planning and production planning for turning parts that can be implemented in aggregated production planning (APP). The developed model considers simultaneously the technology-related constraints and shop floor constraint determined by the available time. In this approach, part machining time and cost are new variables for APP. In this model, the maximum depth of cut and feed for each feature was selected with regard to technology constrains and the spindle speed was selected in aggregated productionplanning. The introduction of the overtime in the optimization process allows for the generation of improved planning according to several performance measures. The proposed optimization model is nonlinear, uni-criterion and multi-variable. A numerical example demonstrates the feasibility of applying the proposed model to APP problem.

کلیدواژه ها:

process planning ، production planning ، turning ، machining parameters