Abstract
The purpose of this article is to deal with subcontracting strategies in the context of production, maintenance and quality integration. We study the multi-item capacitated lot-sizing problem for a production system composed of a single machine. The production system is considered imperfect, producing both conforming and non-conforming items. However, the deterioration of the system is a function of the time and production rate, which affects the quality of the manufactured items. Consequently, a quality control strategy is established, the aim is to inspect, adjust and control the manufactured items. To solve our problem, an evolutive optimization approach is proposed, namely the genetic algorithm (GA). Then, in order to adjust the parameters of GA, we use the Taguchi method. This article is one of the few documents dealing with integrated production management, maintenance and quality under subcontracting constraints that takes into account the complex aspect of the multi-item manufacturing industry. Then, a sensitivity analysis is also carried out to illustrate the robustness of the proposed control policy. Finally, we compare our results with the literature to validate our approach and highlight the advantage of subcontracting in minimizing costs.
Highlights
The main interest of each company is the improvement of productivity, as well as the evolution of its competitiveness
We focus on the joint optimization of production, maintenance and quality associated with the subcontracting strategy
The inspection of the manufacturing process depends on limit failure rates llimite provided from the machine history
Summary
The main interest of each company is the improvement of productivity, as well as the evolution of its competitiveness. We mention that the degradation of the manufacturing system increases as a function of the time elapsed or as a function of the production rate. For this reason, there is a dependence between production rates and the reliability of production equipment.[1] Secondly, the quality of the items manufactured and the maintenance of the equipment are attached.[2] Because, the increase in the rate of deterioration influences the quality of the manufactured items. The choice of preventive and corrective maintenance strategy reduces the risk of failure, which results in the reduction of the appearance of nonconforming items.[3] In a third level, the quality of the manufactured items is one of the criteria for evaluating the performance of the production department
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