Estimation of the Detailed Deviation Zone in Coordinate Metrology Using a Finite Element Solution

Abstract

The detailed deviation zone is needed for closed-loop of manufacturing and inspection or for precise downstream manufacturing operations. Although the objective in coordinate metrology is to understand the geometric properties of a surface but the process is not typically capable to explore any information of the surface regions between the sampled points. A Finite Element approach for Deviation Zone Evaluation (DZE) on the entire inspected surface is presented in this paper. The developed DZE solution estimates the deviation values at any unmeasured point of the inspected surface when a detailed understanding of the surface geometric deviations is required. Implementation of the developed methodology is described and case study for typical industrial parts is presented.