Vol 16, No 1 (2012) > Articles >

Concurrent Engineering of Tolerance Synthesis and Process Selection for Products with Multiple Quality Characteristcs Considering Process Capability

Mohamad Mustajib 1

Affiliations:

  1. Manufacturing Systems Laboratory, Department of Industrial Engineering, University of Trunojoyo Madura, Kamal, Bangkalan 69162, Indonesia

 

Abstract: The existences of variances that are very difficult to be removed from manufacturing processes provide significance of tolerance to the product quality characteristics target of  customer functional requirement. Furthermore, quality loss incurred due to deviation of quality characteristics of the target with a specified tolerance. This article discusses the development of concurrent engineering optimization model of tolerance design and manufacturing process selection on product with multiple quality characteristics by minimizing total costs in the system, namely total manufacturing cost and quality loss cost as functions of tolerance, also  rework and scrap costs. The considered multiple quality characteristics have interrelated tolerance chain. The formulation of proposed model is using mixed integer non linear programming as the method of solution finding. In order to validate of the model, this study presents a numerical example. It was found that optimal solution are achieved from proposed model in the numerical example.
 
Keywords: optimization model, quality loss, rework, scrap, tolerance
Published at: Vol 16, No 1 (2012) pages: 7-14
DOI:

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