Method and apparatus for applying a coating on a substrate
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United States of America Patent
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Oct 20, 2015
Grant Date -
Sep 4, 2008
app pub date -
Jul 18, 2006
filing date -
Jul 20, 2005
priority date (Note) -
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Abstract
A method for applying a coating (4) on a substrate (1), includes: —scanning a laser beam (2) along a line on the surface of said substrate. The method also includes supplying a coating forming material from a supply system (3), the system moving along the same line as the laser beam but coming up behind the laser beam, so that the coating forming material is deposited on a spot which has previously been heated by the laser beam to a temperature above the melting temperature of the coating forming material. Substantially no physical contact occurs between the laser beam and the coating forming material. Preferably, the method further includes a second step of scanning the surface a second time with the laser beam, without adding coating forming material during the second step.
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