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|Title:||Incorporating multi-delivery policy and quality assurance into economic productionlot size problem|
|Authors:||Chiu, Yuan-Shyi Peter|
Chiu, Singa Wang
|Keywords:||EPQ model;Lot sizing;Multiple deliveries;Production;Rework;Scrap|
|Abstract:||This paper incorporates a multi-delivery policy and quality assurance into an imperfect economic production quantity(EPQ) model with scrap and rework. A portion of nonconforming items produced is considered to be scrap, while other isassumed to be repairable and is reworked in each cycle when regular production ends. Finished items can only be delivered tocustomers if whole lot is quality assured after rework. Fixed quantity multiple installments of finished batch are delivered byrequest to customers at a fixed interval of time. Expected integrated cost function per unit time is derived. A closed-form optimalbatch size solution to the problem is obtained. Two special cases are examined and a numerical example given to demonstratemodel’s practical usage.|
|Appears in Collections:||JSIR Vol.68(06) [June 2009]|
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