摘要 |
In the method of precisely polishing a work, torque of a sun gear and an internal gear are kept constant and a load applied to a carrier is reduced and maintained. The method comprises the steps of: changing a rotational speed of at least one of the sun gear, the internal gear, an upper polishing plate and a lower polishing plate; measuring rotation torque of a driving motor of at least one of the sun gear and the internal gear; detecting the minimum rotation torque measured in the measuring step; and adjusting the rotational speed of at least one of the sun gear, the internal gear, the upper polishing plate and the lower polishing plate so as to make the rotation torque thereof equal to the minimum rotation torque or running rotation torque, which is greater a prescribed value than the minimum rotation torque.
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