最少領域法による形状精度の評価

概要

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A new method is introduced for evaluating form errors of a workpiece such as the straightness in a plane, flatness, roundness and cylindricity. By the method, the minimum zone containing a measured feature can be determined and then the least possible value of the form error can be obtained. The method is a generalized one applicable to various types of form error evaluation and is useful in the case where the value of the form error is close to that of a specified tolerance. A theoretical background of the method, fundamental formulas used in it and assumptions on which it is based are discussed. Numerical examples of evaluation are shown for the straightness, flatness and roundness. Experimental evaluations of the cylindricity error for three workpieces are also carried out. A comparison is made between the form errors and the evaluation times by the method and those by the least squares method.
公益社団法人精密工学会の論文
1984-04-05