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Economic design of time-between-events control chart system

โœ Scribed by H.Y. Zhang; M. Xie; T.N. Goh; M. Shamsuzzaman


Publisher
Elsevier Science
Year
2011
Tongue
English
Weight
237 KB
Volume
60
Category
Article
ISSN
0360-8352

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โœฆ Synopsis


This article presents the economic design of the control chart system consisting of several individual control charts based on time-between-events (TBE) data for monitoring multistage manufacturing processes. The design algorithm considers all the TBE charts within a system in an integrative and optimal manner. Numerical studies show that the proposed design algorithm improves the performance characteristics (in terms of profit) considerably. The proposed control chart system is easy to understand and operate, and thus the floor operators can utilize and understand it as easily as for the traditional system.


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The prevention of defective products is a fundamental principle of total quality management and control charts are a powerful statistical tool to reach this objective, but they are expensive and may increase the cost of production. For this reason an appropriate design is necessary before the chart