Apparatus for processing workpiece with sandblasting
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United States of America Patent
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Jun 28, 1988
Grant Date -
N/A
app pub date -
Jun 10, 1986
filing date -
Nov 6, 1984
priority date (Note) -
Expired
status (Latency Note)
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Abstract
There is disclosed a method of and an apparatus for performing, using a sandblasting, a processing such as a chamfering of a workpiece which has a surface to be processed and a surface not to be processed located adjacent to each other. The workpiece (W) held by a holder (2) on a turntable (1) is transferred to a processing station (P.sub.1) by the rotation of the turntable (1). An injection nozzle (3) or (4) is directed toward the surface to be processed (f.sub.1) of the workpiece (W), while a jet nozzle (5) is directed toward the surface not to be processed (f.sub.2). The jet nozzle (5) is supplied with fluid such as air, and the nozzle (3) or (4) is supplied with air containing abrasive grains. The fluid discharged from the jet nozzle (5) prevents the abrasive grains from impinging against the surface not to be processed (f.sub.2).
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