Abstract
The new evaluation method of geometrical accuracy for the 5-axis machining center (MC) based on the measured results of the machined workpiece has been developed. The strategy of our evaluation utilizes the coordinates measuring machine (CMM) as a master gauge because of its accuracy so that machine operator devotes to machine the workpiece and technologist of precise measurement dedicates to the measurement. In our study, the non-rotational machining is utilized to copy and trace the machine trajectory on the workpiece by minimizing the machining error. The profiles of machined workpiece are measured and evaluated by CMM and the geometric errors of the machining center are extracted. The measured results are enough accurate compared with those by the square master gauge calibrated by CMM previously. In this report, the machining setup including workpiece design, tool and cutting conditions is proposed and the evaluated results are shown with the experimental procedures.
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