Journal of Korean Institute of Industrial Engineers (대한산업공학회지)

Korean Institute of Industrial Engineers (대한산업공학회)
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Determination of Optimum Target Values for Production Processes under Two-Stage Screening Procedure

2단계 검사절차를 이용한 생산공정의 최적 평균 및 검사 기준값의 결정

  • Lee, Min-Koo (Department of Business Administration, Seo Won University) ;
  • Hong, Sung-Hoon (Department of Industrial Engineering, Chonbuk National University) ;
  • Kwon, Hyuk-Moo (Department of Industrial Engineering, Pukyong National University) ;
  • Kim, Sang-Boo (Department of Industrial Engineering, Changwon National University)
  • 이민구 (서원대학교 경영학과) ;
  • 홍성훈 (전북대학교 산업공학과) ;
  • 권혁무 (부경대학교 산업시스템 안전공학부) ;
  • 김상부 (창원대학교 산업공학과)
  • Received : 19980300
  • Accepted : 19981200
  • Published : 1999.03.31
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Abstract

This paper considers the problem of determining the optimum target values of the quality characteristic of interest Y and the screening limits of a surrogate variable X which is correlated with Y under two-stage screening procedure. In the two-stage screening procedure, X is measured first to decide whether an item should be accepted, rejected or additional observations should be taken. If it is difficult to decide on the result of measured value of X, Y is then observed to classify the undecided items. Assuming that Y and X are jointly normally distributed, a model is constructed which involves selling and reduced prices, production, inspection, and penalty costs. Methods of finding the optimum process mean and the screening limits are presented. A numerical example and analysis of the results are also presented.

Keywords