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The effect of inspection errors on the optimal batch size in reworkable production systems with scraps

Author

Listed:
  • Alireza Haji
  • Sharam Shadrokh Sikari
  • Ramin Shamsi

Abstract

The objective of this paper is to provide a framework to integrate the existence of products with imperfect-quality items, inspection errors, rework and scrap items into a single Economic Production Quantity (EPQ) model. To achieve this objective, a suitable mathematical model is defined and the optimal production lot size that minimises the total cost is obtained. Sensitivity analysis is carried out for this model. The sensitivity analysis results indicate that the model is very sensitive to defective proportions and type 1 errors of inspection. Nowadays, given the progress made, inspection errors are often ignored. But the findings of this study show that the values of EPQ and total cost are very sensitive to type 1 errors of inspection. If the existence of such errors is ignored, then the obtained results will differ considerably from the optimal outcome. This will impose additional costs to the system.

Suggested Citation

  • Alireza Haji & Sharam Shadrokh Sikari & Ramin Shamsi, 2010. "The effect of inspection errors on the optimal batch size in reworkable production systems with scraps," International Journal of Product Development, Inderscience Enterprises Ltd, vol. 10(1/2/3), pages 201-216.
    • Handle: RePEc:ids:ijpdev:v:10:y:2010:i:1/2/3:p:201-216
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    Cited by:

    1. Ata Allah Taleizadeh, 2018. "A constrained integrated imperfect manufacturing-inventory system with preventive maintenance and partial backordering," Annals of Operations Research, Springer, vol. 261(1), pages 303-337, February.

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