The paper addresses the problem of designing a multi-country production–distribution network that also provides services such as repairs and remanufacturing. The proposed work concentrates primarily on post-sale service provided by the firm under warranty returns. The proposed model assumes that existing warehouses can also serve as collection centres or repair centres for reverse logistics. In addition, the model also explores the possibility of establishing a new facility. Hybrid facilities are considered because of their huge cost-cutting potential due to equipment sharing and space sharing. The capacity of hybrid facilities can be expanded to a predefined limit to process returned products without hampering forward logistics operations. However, if a product cannot be repaired at the warehouse, it is transported to the plant for remanufacturing. The model optimizes the overall configuration and operation cost of the production–distribution network. The production–distribution model developed in the paper is a mixed-integer nonlinear program (MINLP) that is later transformed to a mixed-integer linear program to reduce the solution time. The usefulness of the model is illustrated using a randomly generated dataset. The model identifies (a) the optimal locations/allocations of the existing/new facilities, (b) the distribution of returned products for refurbishing and remanufacturing, and (c) the capacity expansion of the existing plants and warehouses to facilitate remanufacturing and repair services.

本文解决了设计一个多国生产-分销网络的问题，该网络还提供维修和再制造等服务。拟议的工作主要集中在公司根据保修退货提供的售后服务。提议的模型假设现有仓库也可以作为逆向物流的收集中心或维修中心。此外，该模型还探讨了建立新设施的可能性。混合设施被考虑是因为它们由于设备共享和空间共享而具有巨大的成本削减潜力。混合设施的容量可以扩展到预定义的限制，以处理退回的产品，而不会妨碍前进的物流操作。但是，如果产品无法在仓库进行维修，它被运送到工厂进行再制造。该模型优化了产销网络的整体配置和运营成本。本文开发的生产-分配模型是混合整数非线性规划（MINLP），后来转换为混合整数线性规划以减少求解时间。使用随机生成的数据集说明了模型的有用性。该模型确定了 (a) 现有/新设施的最佳位置/分配，(b) 用于翻新和再制造的退货产品的分配，以及 (c) 现有工厂和仓库的产能扩张，以促进再制造和维修服务. 本文开发的生产-分配模型是混合整数非线性规划（MINLP），后来转换为混合整数线性规划以减少求解时间。使用随机生成的数据集说明了模型的有用性。该模型确定了 (a) 现有/新设施的最佳位置/分配，(b) 用于翻新和再制造的退货产品的分配，以及 (c) 现有工厂和仓库的产能扩张，以促进再制造和维修服务. 本文开发的生产-分配模型是混合整数非线性规划（MINLP），后来转换为混合整数线性规划以减少求解时间。使用随机生成的数据集说明了模型的有用性。该模型确定了 (a) 现有/新设施的最佳位置/分配，(b) 用于翻新和再制造的退货产品的分配，以及 (c) 现有工厂和仓库的产能扩张，以促进再制造和维修服务.