Liquid drop peening method and apparatus therefor
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United States of America Patent
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Aug 25, 2015
Grant Date -
Oct 10, 2013
app pub date -
Apr 5, 2012
filing date -
Apr 5, 2012
priority date (Note) -
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Abstract
A method for peening a surface of a material is disclosed. The method may include producing repeated, separated and high speed liquid drops and moving the liquid drops across the surface to be peened. The liquid drops are essentially free of air bubbles and the velocity of the liquid drops is at least 500 ft/sec. A peening apparatus to produce repeated, separated and high speed liquid drops is also disclosed. The apparatus may comprise a storage tank, a nozzle, a pump, an accumulator, a regulator and an actuator. The apparatus may control the volume and velocity of the produced liquid drops as well as the frequency of the liquid drop production.
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