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Diagnosis of multiple fixture faults in machining processes using designated component analysis

โœ Scribed by Jaime Camelio; S. Jack Hu; Weiping Zhong

Publisher
Society of Manufacturing Engineers
Year
2004
Tongue
English
Weight
674 KB
Volume
23
Category
Article
ISSN
0278-6125

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โœฆ Synopsis

Fixture imperfections influence dimensional variation on machining processes. Therefore, a systematic method to isolate fixture faults will allow improvement in product quality. This paper presents a diagnosis methodology to identify root causes of fixture-induced workpiece variation in machining. The methodology is based on designated component analysis, which extracts predefined variation patterns from the production data. The methodology integrates online measurement data, part geometry, fixture layout, and sensor layout in detecting multiple fixture faults occurring simultaneously. An application of the proposed method is presented through a computer simulation.

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