Abstract
This paper deals with deburring of the needle tip by the cavitation aided machining using the micro abrasive. The novel method shows the machining ability by micro loose abrasives with the cavitation impact occurring in slurry. Slurry is sucked through the narrow gap between workpiece and the restrictor, and cavitation is occurred above workpiece surface downstream from the restrictor tip because of the sudden decompression. This study used a slurry flow made by a suction pump, because the suction flow can perform stable machining in comparison with a jet flow. The effect of cavitation-aided abrasive machining varies depend on restrictor shapes. So, an optimum condition means removing only burr generated by surface grinding machine make needle tip is showed by experimental and theoretical data in this paper. Deburring effect is determined by a setting direction of workpiece, machining time, abrasive size. In this paper, the optimum machining time for deburring is investigated.
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