期刊
COMPUTERS & INDUSTRIAL ENGINEERING
卷 94, 期 -, 页码 74-82出版社
PERGAMON-ELSEVIER SCIENCE LTD
DOI: 10.1016/j.cie.2016.02.003
关键词
Algorithm; Tolerance allocation; Productivity; Assembly; Optimization; Quality improvement
资金
- National Natural Sciences Foundation of China [61175041, 11371077]
- Fundamental Research Funds for the Central Universities in China [DUT12LK29]
In this paper, to show the importance of improvement on savings of costs in a riskless sense, the quality loss and manufacturing cost functions are employed to allocate the components tolerances of an assembled product simultaneous with taking appropriate improvement operations. The use of improvement operations reduces the variability of the process while increasing the production costs. To apply improvement operations in a riskless sense, which actually does not impose additional costs to the producers, we take advantages of the trade-off between improvement costs and tolerance costs. Therefore, a series of algorithms are proposed for simultaneous selection of tolerances and improvement operations so as to minimize the total cost. The use of our approach helps considerably save large amounts of computer time by pruning many unnecessary evaluations. It is shown that proper choices of both improvement operations and tolerances have an important impact to enhance productivity and quality. (C) 2016 Elsevier Ltd. All rights reserved.
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