Stress treatment device, operating system, and method of making turbine
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United States of America Patent
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Apr 30, 2013
Issued Date -
N/A
app pub date -
Nov 23, 2011
filing date -
May 29, 2009
priority date (Note) -
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Abstract
A stress treatment device has an operating unit including a head unit performing peening by irradiating an inside of a hole formed in a structure with laser to form a compressive stress region in the hole; a laser unit having an optical fiber guiding the laser to the head unit; a jetting unit jetting liquid into the hole; and a support part supporting the optical fiber in a manner of allowing the jetted liquid to flow through and being fixed in the head unit.
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