Analyzing the Effect of Process Parameters on the Shape of 3D Profiles

• Autores: Bianca M. Colosimo, Massimo Pacella
• Localización: Journal of quality technology: A quarterly journal of methods applications and related topics, ISSN 0022-4065, Vol. 43, Nº. 3, 2011, págs. 169-195
• Idioma: inglés
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• Resumen

  • This paper differs from other examinations of process parameters in that it deals with three-dimensional shapes with curves in space rather than curves that lie on a plane. Modeling is done with complex principal component analysis (PCA), a generalization of PCA that uses complex rather than real numbers. Complex PCA is not sensitive to rotation about the origin and is a superior method of detecting the effect of controllable factors on profile shape. A case study in determining the straightness of lathe-turned items demonstrates this method’s suitability in determining characteristics related to geometric tolerances.