非真円断面軸のラップ仕上

概要

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The lapping has been used experientially for finishing method for the higher roundness of cylindrical shafts and holes. However, there are very few reports about the theoretical analysis of the finishing mechanism for the high precision polygonal cross section of cylinder. This study offers a new method of finishing polygonal shafts, of which shapes are ellipsoidal, triangular of fourprotrusion and so on. By this method, the amplitude can be increased and decreased of any Fourier's component of the out-of-roundness. Special types of laps were produced by applying the measuring method of roundness called "V-block method". Using one of the V-block type laps, the magnitude of the fotur-protrusion component was increased from 8.4 μm to 9.9 μm, while the other components were decreased. Then the out-of-roundness was improved from 35 μm to 25 μm. By setting the angle between the supporting teeth adequate value, any polygonal shaft can be finished with these laps. This method is applicable also for finishing the polygonal holes.
公益社団法人精密工学会の論文
1983-02-05