System and method for laser welding
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United States of America Patent
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-
Sep 14, 1999
Issued Date -
N/A
app pub date -
Jul 28, 1997
filing date -
Nov 8, 1995
priority date (Note) -
Expired
status (Latency Note)
Importance
Abstract
A system and method for laser welding. The joint edges of two adjacent sheet metal components are brought into butting relationship on a weld line. A welding head is moved along the weld line while directing a laser welding beam downwardly from its optics to the weld line where it creates a weld joint. In its path downwardly to a focal point at the weld line the beam passes through a stream of air directed transversely of the beam, a shield plate below the stream of air and above the weld line, and a nitrogen filled zone below the shield and above the weld joint.
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