System and method for controlling the size of the molten pool in laser-based additive manufacturing
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United States of America Patent
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Feb 7, 2006
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N/A
app pub date -
Aug 25, 2003
filing date -
Aug 25, 2003
priority date (Note) -
Expired
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Abstract
According to one embodiment of the invention, a method for controlling the size of the molten pool in a laser based additive manufacturing process includes coaxially aligning an imaging device with a laser nozzle and imaging a molten pool, created by a laser, on a substrate with the imaging device. The method further includes comparing at least one characteristic of the molten pool with a respective characteristic of a target molten pool, and adjusting, in substantially real-time, a laser power of the laser based on the comparison in order to correlate the characteristic of the molten pool with the respective characteristic of the target molten pool.
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