Method and system for laser welding
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United States of America Patent
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Jun 15, 2004
Issued Date -
N/A
app pub date -
Feb 18, 2003
filing date -
Feb 19, 2002
priority date (Note) -
Expired
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Abstract
A method and system for laser welding non-circular or non-concentric parts, such as catalytic converter components. The present invention provides a method (and corresponding system for carrying out the method), comprising: providing a part having sections to be welded together; rotating the part on a constant speed rotary; generating a laser beam; directing the laser beam onto a surface of the part to weld the sections of the part together; and controlling the laser beam such that an angle of incidence of the laser beam on the surface of the part remains constant, the laser beam remains in focus on the surface of the part, and the laser beam moves at a constant surface speed along the surface of the part as the part is rotated on the constant speed rotary.
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