Article2018

Production models of multiple products using a single machine under quality screening and reworking policies

Ata Allah Taleizadeh · Mahshid Yadegari · Shib Sankar Sana

34 citations0/0 files storedJournal of Modelling in Management

No readable copy stored yet — this record is metadata only.

Supply Chain and Inventory Management Management and Optimization Techniques Scheduling and Optimization Algorithms

Abstract

Purpose The purpose of this study is to formulate two multi-product single-machine economic production quantity (EPQ) models by considering imperfect products. Two policies are assumed to deal with imperfect products: selling them at discount and applying a reworking process. Design/methodology/approach A screening process is used to identify imperfect items during and after production. Selling the imperfect items at a discount is examined in the first model and the reworking policy in the second model. In both models, demand during the production process is satisfied only by perfect items. Data collected from a case company are used to illustrate the performance of the two models. Moreover, a sensitivity analysis is carried out by varying the most important parameters of the models. Findings The case study in this research is used to demonstrate the applicability of the proposed models, i.e. the EPQ model with salvaging and reworking imperfect items. The models are applied to a high-tech un-plasticized polyvinyl chloride (UPVC) doors and windows manufacturer that produces different types of doors and windows. ROGAWIN Co. is a privately owned company that started in 2001 with fully automatic production lines. Finally, the results of applying the different ways of handling the imperfect items are discussed, along with managerial insights. Originality/value In real-world production systems, manufacturing imperfect products is unavoidable. That is why, it is important to make a proper decision about imperfect products to reduce overall production costs. Recently, applying a reworking strategy has gained the most interest when it comes to handling this problem. The principal idea of this research is to maximize the total profit of manufacturing systems by optimizing the period length under some capacity constraints. The proposed models were applied to a company of manufacturing UPVC doors and windows.

Citations in this library

Stored only when both papers are in the corpus — 34 citations exist upstream.

References

1990How Many Parts to Make at Once 2000Economic production quantity model for items with imperfect quality 1986Economic Production Cycles with Imperfect Production Processes 2018Sustainable inventory management with deteriorating and imperfect quality items considering carbon emission 2001Production lot sizing with the reworking of imperfect quality items produced 2010A production-inventory model of imperfect quality products in a three-layer supply chain 2004Economic ordering quantity models for items with imperfect quality 2009Economic production quantity with rework process at a single-stage manufacturing system with planned backorders

Cited by

2023Effects of emission reduction and rework policy in a production system of green products: An interval valued optimal control theoretic approach 2021Inventory Models for Imperfect Quality Items: A Two-Decade Review 2019Three-echelon supply chain inventory model for growing items 2023Pricing and dynamic service policy for an imperfect production system: Extended Pontryagin’s maximum principle for interval control problems 2020Pricing Strategy and Channel Co-ordination in a Two-Echelon Supply Chain Under Stochastic Demand

Imported from OpenAlex (CC0) — nothing here is generated.