Ultra-High-Precision Technology of Internal Polishing of small Diamater Pipe.

提出了一种利用细颗粒悬浮在水中的nw整理方法。当细晶粒被输送到沿自身轴线旋转的管道（试样）中时，晶粒移动，并通过晶粒的离心力对试样内表面产生抛光作用。结果表明：1)对抛光试样表面形貌的检测表明，试样转速对表面粗糙度有显著影响。2)晶粒在管内的抛光运动与由晶粒运动方程理论计算得到的抛光运动吻合较好。这表明从理论推导中可以很好地估计出良好的抛光条件。

Ntw finishing method has been developed by using the fine grain Suspended in inguied (water). When the fine grain is supplied into the pipe (spcimen) rotatting on its own axis, the grain moves and causes the polishing action to the internal surface of specimen by centrifugal force of the grain.The results are as follows:1) Examination of the surface profile of the polished specimen indicated that the surface roughness is affected remarkably by the rotatting speed of specimen.2) There is good agreement between the polishing motion of grain in the pipe and the one theoretically calculated from kinematic equation of the grain. This suggested that good polishing condition can be estimated well from the theoretical culculation.