An Economic Production Quantity Model for Defective Items with Sales Return Service, Scrap Items and Rework

Authors

  • Sekar, T. Department of mathematics, EBET Group of institutions, Tirupur – 638 108, Tamil Nadu, India
  • Uthayakumar, R. Department of Mathematics, The Gandhigram Rural Institute – Deemed University, Gandhigram –624 302, Dindigul, Tami Nadu, India
Abstract:

In this model, we establish an inventory model to determine the optimal inventory replenishment scheme for the economic production quantity (EPQ) model for imperfect, deteriorating items with sales return service under multiple production and rework setup. In one cycle, production process can produces the products in m production setups and reworks the defective items in one rework setup. The common assumptions in this model are that all units produced are not perfect and shortages are not allowed. The defective/scrap items are produced during the m production setups. The defective items are of two types which are recoverable items and irrecoverable items. The recoverable items are converted into good quality items in rework process and irrecoverable items are considered as scrap (disposable) items. A portion of defective items produced are not successfully screened out internally during the m production setups and passed on to customer, thereby causing defect sales returns and reverse logistic from customers back to the manufacturer. The proposed model is demonstrated numerically and the sensitivity analysis is also carried out to study the behavior of the inventory model.

Upgrade to premium to download articles

Sign up to access the full text

Already have an account?login

similar resources

an economic production quantity model for defective items with sales return service, scrap items and rework

in this model, we establish an inventory model to determine the optimal inventory replenishment scheme for the economic production quantity (epq) model for imperfect, deteriorating items with sales return service under multiple production and rework setup. in one cycle, production process can produces the products in m production setups and reworks the defective items in one rework setup. the c...

full text

Economic production quantity model with imperfect-quality items, two-way imperfect inspection and sales return

In practices, not only production but inspection processes are often not perfect, thereby generating defects and inspection errors. Previous imperfect-quality inventory studies, however, have mostly focused on developing cost-minimizing models that do not consider imperfect inspection processes and related defect sales return issues despite their practical significance. Thus, this study propose...

full text

Economic production quantity (EPQ) model for three type imperfect items with rework and learning in setup

Imperfect quality items are unavoidable in an inventory system due to imperfect production process, natural disasters, damages, or many other reasons. The setup cost and production cycle time can be related in terms of process deterioration and learning and forgetting effects. Learning reduces production run length and setup cost, whereas deterioration and forgetting increases both. Keeping the...

full text

An economic production model for deteriorating items and time dependent demand with rework and multiple production setups

Recently, much emphasis has given to study the control and maintenance of production inventories of the deteriorating items. Rework is one of the main issues in reverse logistic and green supply chain, since it can reduce production cost and the environmental problem. Many researchers have focused on developing rework model, but few of them have developed model for deteriorating items. Due to t...

full text

Fuzzy Economic Production Quantity Model for Items with Imperfect Quality

In the real world, vague phenomenon is quite common in the production/inventory models. In order to process the vagueness, a production/inventory model that can be more closely related to the real vagueness and can take account of the vague factors that contribute to production costs, is required. The model must be extended or altered to fit in with the fuzzy situation. Since items with imperfe...

full text

Environmentally Responsible EPQ Model with Rework Process of Defective Items

A real economic growth only comes from increasing quality and quantity of the factors of production. Most production systems produce items which are of imperfect quality. In a production/inventory situation items which are received or produced are not of perfect quality. Thus the presence of defects which is inevitable in a produced/ordered lot is sorted out by the process of screening. Handlin...

full text

My Resources

Save resource for easier access later

Save to my library Already added to my library

{@ msg_add @}


Journal title

volume 6  issue None

pages  77- 92

publication date 2016-02

By following a journal you will be notified via email when a new issue of this journal is published.

Keywords

No Keywords

Hosted on Doprax cloud platform doprax.com

copyright © 2015-2023