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Variation source identification in manufacturing processes based on relational measurements of key product characteristics
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Loose, Jean-Philippe, Zhou, Shiyu and Ceglarek, Darek (2008) Variation source identification in manufacturing processes based on relational measurements of key product characteristics. Journal of Manufacturing Science and Engineering, Vol.130 (No.3). doi:10.1115/1.2844591
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Official URL: http://dx.doi.org/10.1115/1.2844591
Abstract
Variation source identification for manufacturing processes is critical for product dimensional quality improvement, and various techniques have been developed in recent years. Most existing variation source identification techniques are based on a linear fault-quality model, in which the relationships between process faults and product dimensional quality measurements are linear. In practice, many dimensional measurements are actually nonlinearly related to the process faults: For example, relational dimension measurements such as the relative distance between features are used to monitor composite tolerances. This paper presents a variation source identification methodology in the presence of these relational dimension measurements. In the proposed methodology, the joint probability density of the measurements is determined as a function of the process parameters; then, series of statistical comparisons are performed to differentiate and identify the variation source. A case study is also presented to illustrate the effectiveness of the methodology.
| Item Type: | Journal Article | ||||
|---|---|---|---|---|---|
| Subjects: | T Technology > TS Manufactures | ||||
| Divisions: | Faculty of Science > WMG (Formerly the Warwick Manufacturing Group) | ||||
| Library of Congress Subject Headings (LCSH): | Manufacturing processes -- Quality control | ||||
| Journal or Publication Title: | Journal of Manufacturing Science and Engineering | ||||
| Publisher: | A S M E International | ||||
| ISSN: | 1087-1357 | ||||
| Official Date: | June 2008 | ||||
| Dates: |
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| Volume: | Vol.130 | ||||
| Number: | No.3 | ||||
| Number of Pages: | 11 | ||||
| DOI: | 10.1115/1.2844591 | ||||
| Status: | Peer Reviewed | ||||
| Publication Status: | Published | ||||
| Access rights to Published version: | Restricted or Subscription Access | ||||
| Funder: | National Science Foundation (U.S.) (NSF), National Institute of Standards and Technology (U.S.). Advanced Technology Program, Engineering and Physical Sciences Research Council (EPSRC) | ||||
| Grant number: | CMMI-0529327 (NSF), CMMI-0322147 (NSF), NSF-DMII-0239244 (NSF), 70NANB3H3054 (NIST-ATP) |
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