| 摘要 |
PROBLEM TO BE SOLVED: To spray an abrasive uniformly onto an entire surface of a workpiece W moving on a rotation track. SOLUTION: A spray nozzle 20 for moving a workpiece on a predetermined rotation trajectory and also spraying an abrasive in a constant quantity is repetitively reciprocated between the outer peripheral line and the inner peripheral line or among the outer peripheral line, the center and the outer peripheral line while controlling a moving speed so that the speed relatively increases toward the center of the rotation trajectory and relatively decreases toward the outer periphery. Such control of the moving speed of the spray nozzle 20 is made to concentrically define the rotation track of the workpiece W into a plurality of regions with an equal area and to cause the nozzle 20 to traverse each region with the equal area within constant time. COPYRIGHT: (C)2009,JPO&INPIT
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