This paper addresses the optimization of make-to-order hybrid manufacturing - remanufacturing system to make capacity and inventory decisions jointly along with production decisions. The proposed system considers a common production facility and the same assembly/disassembly line to perform manufacturing and remanufacturing operations simultaneously. The current study takes into account an environment where new and remanufactured (reman) products competing to each other that is, the common demand stream for both products but different selling prices. Furthermore, the relative capacity consumed by remanufacturing over the manufacturing is explained in two ways, namely less capacity intensive case and more capacity intensive case. Differently, from previous studies, we consider a scenario with a discounted selling price for reman products, shortage penalty costs, lost sales, disposal and uncertainty in demand, amount and yield of returns. Hence, to handle those uncertainties, a scenario-based stochastic programming model in a two-stage setting is presented. In the first stage, the raw material inventory and production capacity levels are planned and in the second stage, the production, inventory and disposal decisions are determined by balancing overage and underage costs. The results indicate that net values associated with new and reman products can be decisive in choosing either manufacturing or remanufacturing.

本文介绍了按订单生产的混合制造-再制造系统的优化，以同时进行产能和库存决策以及生产决策。所提出的系统考虑了共同的生产设施和相同的组装/拆卸生产线，以同时执行制造和再制造操作。当前的研究考虑了新产品和再制造（再制造）产品相互竞争的环境，即两种产品的共同需求量不同但售价不同。此外，以两种方式解释了在制造过程中因再制造而消耗的相对容量，即较少的容量密集型情况和较高的容量密集型情况。与以前的研究不同，我们考虑的情况是再制造产品的折扣价，短缺罚款成本，销售损失，处置以及需求，金额和收益率的不确定性。因此，为了处理这些不确定性，提出了一种基于场景的两阶段环境下的随机规划模型。在第一阶段中，计划原材料库存和生产能力水平，在第二阶段中，通过平衡超额和不足成本来确定生产，库存和处置决策。结果表明，与新产品和再制造产品相关的净值对于选择制造还是再制造可能具有决定性作用。计划了原材料库存和生产能力水平，在第二阶段，通过平衡超额和不足成本来确定生产，库存和处置决策。结果表明，与新产品和再制造产品相关的净值对于选择制造还是再制造可能具有决定性作用。计划了原材料库存和生产能力水平，在第二阶段，通过平衡超额和不足成本来确定生产，库存和处置决策。结果表明，与新产品和再制造产品相关的净值对于选择制造还是再制造可能具有决定性作用。