焼損による工作機械の精度の変化について : 第3報, 駆動系について

概要

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We studied the accuracy change of some driving mechanisms of the machine tool damaged by fire (i.e. spindles, shafts, toothed gears and threads). In our research the objects were heated by artificial fire. The run out of the fire-damaged steel shaft too was in the same tendency as the deformation of the bed surface of fire-damaged lathe (that was previously reported). At a comparatively lower temperature of fire, the involute curve of the cast iron gear tooth deformed slightly only at the addemdum part. But when the temperature of fire rose beyond the A_1 transformation of iron and steel, this deformation occurred considerably not only at addemdum part but also at deddemdum part. At a temperature of fire higher than 800℃, the noise and the vibration of the toothed gears increased remarkably. This increase of the noise and vibration corresponded to the accuracy change of the fire-damaged tooth.
一般社団法人日本機械学会の論文
1961-03-25