Heat treatment device for crank shaft
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United States of America Patent
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Aug 9, 2016
Issued Date -
N/A
app pub date -
Dec 19, 2013
filing date -
Dec 28, 2012
priority date (Note) -
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Abstract
A crankshaft heat treatment device may include a base frame, a jig frame in which a crankshaft is rotatably supported and that is disposed to be able to move in a horizontal direction and in a vertical direction at the base frame, and a laser unit that is disposed in a predetermined fixed position and irradiates laser beam to a pin portion and a journal portion of the crankshaft so as to treat the pin portion and the journal portion with heat.
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