ANNULAR OPTICAL LASER WELDING METHOD
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United States of America Patent
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Issued Date -
Jun 12, 2008
app pub date -
Dec 5, 2007
filing date -
Dec 8, 2006
priority date (Note) -
Abandoned
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Abstract
A welding method in the manufacture of an accumulator comprising a cover with a ball welded onto the periphery of an opening formed through the cover, comprises welding the ball onto the cover of the accumulator by placing the ball (1) in contact with the periphery of an opening (2) formed through a metal part (3, 11) preferably of aluminum, and then welding the ball, preferably of aluminum or steel, onto the periphery of the opening using a laser emitting a beam with an annular cross-section (4).
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