Abstract
Summary Accurate and consistent transformations between design and manufacturing coordinate frames are essential for precision part production. These coordinate transformations establish surface position and orientation relationships as manufactured pans pass from design through production processes to inspection and surface error analysis. Unfortunately, these coordinate transformations can be uncertain due to factors such as geometric form errors in workpiece reference surfaces, fixture locating point variations, and coordinate measurement errors. A method for representing and estimating these uncertainties and their propagation through multi-stage manufacturing processes is presented in this paper. The method is applicable to systems with combinations of fixturing and coordinate measurements.
Published Version
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