Volumetric Error Identification and Measured Data Correction for On-Machine Measurement and Inspection Systems

摘要

Needs for higher accuracy on machined compoents are always on the rise. Inspection of parts in situ has the significant advantage to rapidly rework the part based upon inspection results. Objectives of this research are quick calibration of volumetric errors of machine tools and proper assessment of machined shapes distorted by machine tool error sources by correction of measured data. In order to realize the objectives a three-dimensional reference artifact is invented and fabricated. Measurement results on the proposed method is verified by comparing the identified volumetric error map with the diagonal test results of ANSI/ASME B.5 using a laser interferometer.