ERROR EVALUATION OF SECONDARY FREE FORM SURFACES IN COMPLEX PART MEASUREMENT

Antonio Piratelli-Filho, Geraldo G. Soares-Neto

Abstract

The main purpose of this work is to investigate the errors on secondary surfaces generated to joint free form surfaces of complex parts measured with Coordinate Measuring Machines (CMM) and modeled with CAD techniques. The approach involves the measurement of a complex part and fitting using NURBS curves and surfaces. The errors were determined by difference between determined points on secondary surfaces and fitted CAD surface.

Keywords

free form surface, error analysis, NURBS surfaces

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PWC-2006-TC14-028u.pdf

DOI

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IMEKO TC

TC14 - Measurement of Geometrical Quantities

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