Optimal asymmetric tolerance design
作者:
SAEED MAGHSOODLOO,
MING-HSIENCALEB LI,
期刊:
IIE Transactions
(Taylor Available online 2000)
卷期:
Volume 32,
issue 12
页码: 1127-1137
ISSN:0740-817X
年代: 2000
DOI:10.1080/07408170008967467
出版商: Taylor & Francis Group
数据来源: Taylor
摘要:
An asymmetric tolerance design occurs when deviation (from the ideal target) of a quality characteristic in one direction is more harmful than in the opposite direction. Asymmetric tolerances are common in many manufacturing processes. Traditionally, the designer of a manufactured component either would choose the smaller tolerance as the tolerance for both sides of the ideal target, or would set a process mean at the middle of the tolerances. Both methods fail to minimize the expected value of Taguchi's societal quality losses when the quality loss function is asymmetric. Linear and quadratic quality loss functions are considered to determine the optimal value of a process mean that minimizes the expected value of the quality loss function. Also, a quality loss model involving a pokayoke defect prevention procedure is investigated.
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