Manufacturing Process Capability and Specification Limits
نویسندگان
چکیده
منابع مشابه
Manufacturing Process Capability and Specification Limits
In modern electronics, specifications for products have constantly been tightened due to performance competition. The processes for product development and manufacturing have been developed to meet the tighter specifications and quality requirements. The development of test methods and measurement devices have not been as fast, and as a consequence, the relative impact of measurement errors has...
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We extend the idea of process capability plots from the case of two-sided specification intervals to derive a graphical method useful when doing capability analysis having one-sided specification limits. The derived process capability plots are based on existing capability indices for one-sided specification limits. Both the cases with and without a target value are investigated. Under the assu...
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The properties of Cpmk in the presence of asymmetric specification limits are discussed. It is shown that Cpmk tends to zero as the process variation increases and vice versa. Furthermore, if the process variation is small, Cpmk has its maximum near the target value but the maximum moves towards the specification midpoint as the variation increases. This is a desirable property as for large var...
متن کاملProcess Capability Analysis for Non-normal Processes with Lower Specification Limits
Acknowledgements I am heartily thankful to my advisor Hendry Raharjo, PhD for his invaluable guidance. His attitudes of motivation and his insightful comments helped me throughout my study. Although it was fatiguing, I must admit that I enjoyed what I did. I would also like to thank Prof. Bo Bergman. Without his brilliant idea, this study would not have been possible. Last but not least, my sin...
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In this thesis some aspects of process capability analysis are considered. Process capability analysis deals with how to assess the capability of manufacturing processes. Based on the process capability analysis one can determine how the process performs relative to its product requirements or specifications. An important part within process capability analysis is the use of process capability ...
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ژورنال
عنوان ژورنال: The Open Industrial & Manufacturing Engineering Journal
سال: 2008
ISSN: 1874-1525
DOI: 10.2174/1874152500801010029