Interactive laser welding at elevated temperatures of superalloy articles
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United States of America Patent
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Sep 10, 1996
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N/A
app pub date -
Sep 3, 1993
filing date -
Sep 3, 1993
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Abstract
A process and apparatus is provided for laser welding a nickel and/or cobalt based superalloy article comprising: preheating the entire weld area and adjacent region to a ductile temperature with an induction heat coil and maintaining such temperature during welding and solidification of the weld; and welding the preheated article utilizing a laser with a powder alloy feed with a control means controlling the laser, power feed and motion system on which the article is fixtured, wherein the control means includes a vision system which digitizes the weld area providing a path for the laser welding to follow.
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