研削加工面の三次元的評価のための断面曲線の走査位置補正法

概要

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A method is proposed for compensation of fluctuations in scanning speed of surface profile curves of ground parts. In the measuring of machined surfaces with the stylus method, the scanning speed of a stylus for the measurement of machine surfaces can fluctuate and the observed curves inevitably have errors in the scanning direction. This is not fatal in analysis of a single curve, however, in three dimensional analysis using plural curves, the existence of these fluctuations is critical. Compensation of the scanning length is required, in this case, to characterize machined surfaces. The method proposed identifies the positions on a profile which were formed by same abrasives, and enable the fluctuated profile curves to be used for effective three dimensional analysis. The identification of shapes formed by a same abrasive is important to analyze the behavior of abrasives on a grinding wheel. The method is based on the concept of minimization of an index function, which is designed to evaluate the differences of a couple of curves. Using this method, periodicity on a ground surface due to rotation of a grinding wheel was isolated, which is not perceptible without compensation.
公益社団法人精密工学会の論文
1994-05-05