• K. Dhanam
• T.Kalaiselvi

This paper explores a Multi-Item production Inventory Model with Remanufacturing of defective items and return items using Hexagonal fuzzy number. Imperfect quality items are unavoidable in an inventory system due to production process, natural disasters, damages and many other reasons. Our proposed model is considered as the regular production during the production time some items are defected, wholesaler found that some items are damaged before the sales and after sales the customers identify the defects. The rate of demand considered as random variable and it follows Dagum distribution. The cost parameters represented by Hexagonal fuzzy number. Expected total cost is derived and the model is defuzzified by Mean Deviation Method. Finally, a numerical example is given to illustrate the model and sensitivity analysis also made.

Inventory, Defected items, Remanufacturing, reworked items, Dagum Distribution, Hexagonal Fuzzy number, Mean Deviation Method.

"Multi-Item Production Inventory Model With Remanufacturing of Defective Items and Return Items Using Hexagonal Fuzzy Number", International Journal of Emerging Technologies and Innovative Research (www.jetir.org), ISSN:2349-5162, Vol.5, Issue 2, page no.738-745, February-2018, Available :http://www.jetir.org/papers/JETIR1802126.pdf

"Multi-Item Production Inventory Model With Remanufacturing of Defective Items and Return Items Using Hexagonal Fuzzy Number", International Journal of Emerging Technologies and Innovative Research (www.jetir.org | UGC and issn Approved), ISSN:2349-5162, Vol.5, Issue 2, page no. pp738-745, February-2018, Available at : http://www.jetir.org/papers/JETIR1802126.pdf