APPARATUS AND METHOD FOR ABRASIVE WATER JET MACHINING
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United States of America Patent
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Issued Date -
Mar 27, 2014
app pub date -
Sep 25, 2013
filing date -
Sep 26, 2012
priority date (Note) -
Abandoned
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Abstract
To provide an abrasive water jet machining apparatus in which the machining accuracy and machining efficiency is improved by improving the flowability of an abrasive through a nozzle. An abrasive water jet machining apparatus performs machining by directing an abrasive water jet at a workpiece, the abrasive water jet being composed of a mixture of a high-pressure processing fluid with an abrasive. The machining apparatus includes: a nozzle that directs the abrasive water jet; a high-pressure water supply device that supplies the processing fluid to the nozzle; and an abrasive supply device that supplies the abrasive to the processing fluid. The abrasive is composed of a coated abrasive, the coated abrasive being produced by coating a surface of an abrasive material composed of abrasive grains with a water-repellent material or flow promoting material. The abrasive supply device 8 supplies the coated abrasive to the nozzle.
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