Economic production quantity model with defective items, imperfect rework process, and lost sales

https://doi.org/10.30656/jsmi.v8i1.7580
Abstract views: 65 , PDF downloads: 60
Keywords: Defective items, Economic production quantity, Imperfect rework process, Inventory management, Lost sales, Production lot size

Abstract

This study proposes an economic production quantity (EPQ) model that comprehensively addresses scrap items, imperfect quality items, rework processes, and shortages. The model incorporates various types of defective items, including scrap, imperfect quality, and rework able items, and implements immediate rework processes upon the completion of regular production. Shortages are treated as lost sales, enhancing the accuracy of inventory cost estimations. Numerical experiments demonstrate the opti­mal­ity of production lot sizes and underscore the impact of production and demand rate adjustments on overall inventory costs. Sensitivity analysis further elucidates the influence of imperfect quality items on inventory costs. This EPQ model offers a comprehensive approach to efficient and effective finished product inventory management by integrating consider­ations for scrap items, imperfect quality items, and rework processes. Addi­tionally, a furniture manufacturing company case is presented to illustrate the practical application of the proposed model.

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Published
2024-06-04
How to Cite
[1]
C. Aprilianti, A. K. Garside, A. Khoidir, and T. E. Saputro, “Economic production quantity model with defective items, imperfect rework process, and lost sales”, j. sist. manaj. ind., vol. 8, no. 1, pp. 35-46, Jun. 2024.
Issue
Vol. 8 No. 1 (2024): June
Section
Research Article

Copyright (c) 2024 Chusnul Aprilianti, Annisa Garside, Amelia Khoidir, Thomy Eko Saputro

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