Optimal batch sizing, quality improvement and rework for an imperfect production system with inspection and restoration
by Mallika Parveen, T.V.V.L.N. Rao
European J. of Industrial Engineering (EJIE), Vol. 3, No. 3, 2009

Abstract: This paper incorporates the effect of process inspection and restoration (Ben-Daya and Rahim, 2003) in an imperfect production process while considering three different scenarios (Ojha et al., 2007): 1) single lot of raw material–multiple lot of finished product–multiple delivery of the product, 2) single lot of raw material–multiple lot of finished product–single delivery of the product, 3) single lot of raw material–single lot of finished product–single delivery of the product. A numerical algorithm is proposed, and an illustrative example is provided. The optimal number of inspections, ordering quantities and expected total cost of the illustrative example are evaluated for each of the three models along with a sensitivity analysis to show the impact of the model parameters on the solution. The analysis shows that incorporating the inspection and restoration in the imperfect production process results in larger batch sizes and lower total costs. The implementation of inspection and restoration in imperfect production processes is good in cases of higher percentage of defective items produced (α), as it results in higher savings on total cost. [Submitted 03 October 2007; Revised 22 May 2008; Revised 10 November 2008; Accepted 11 November 2008]

Online publication date: Sun, 10-May-2009

The full text of this article is only available to individual subscribers or to users at subscribing institutions.

 
Existing subscribers:
Go to Inderscience Online Journals to access the Full Text of this article.

Pay per view:
If you are not a subscriber and you just want to read the full contents of this article, buy online access here.

Complimentary Subscribers, Editors or Members of the Editorial Board of the European J. of Industrial Engineering (EJIE):
Login with your Inderscience username and password:

Username:        Password:          Forgotten your password?

Want to subscribe?
A subscription gives you complete access to all articles in the current issue, as well as to all articles in the previous three years (where applicable). See our Orders page to subscribe.

If you still need assistance, please email subs@inderscience.com