Determining powder feed nozzle misalignment
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United States of America Patent
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Mar 24, 2015
Grant Date -
Sep 15, 2011
app pub date -
May 11, 2011
filing date -
Nov 13, 2008
priority date (Note) -
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Abstract
This invention relates to a method for determining misalignment of a powder feed nozzle and a laser beam. The method includes forming a test structure on a workpiece in at least two different directions by deposition laser welding with powder at substantially constant deposition parameters without relative rotation between a powder feed nozzle and a laser beam, measuring heights and/or wall thicknesses of the test structure along the test structure, and determining a direction and/or an amount of misalignment of the powder feed nozzle relative to the laser beam based on the measured heights and/or wall thicknesses.
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