Dynamic machining project control model under order quantity and deadline constraints

To achieve the optimal control of material removal rate (MRR) for a machining project, a Dynamic Machining Project Control (DMPC) Model is proposed under the considerations of order quantity and deadline constraints. This paper not only introduces material removal rate into the objective function dynamically, but also implements Calculus of Variations to resolve the continuous control problem comprehensively. In addition, the optimal solution to minimize the cost of a machining project with production deadline is provided, and the, decision criteria for selecting the optimal solution are recommended. Moreover, the sensitivity analyses of decision variables in the optimal solution as well as the numerical simulation of a real industrial problem are fully discussed, This study contributes a significant approach to control a machining project for production engineers in today's machining industry with profound insight.