Method and apparatus for gas tungsten arc welding tailored aluminum blanks
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United States of America Patent
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Jun 24, 1997
Issued Date -
N/A
app pub date -
May 26, 1995
filing date -
May 26, 1995
priority date (Note) -
Expired
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Abstract
Tailored aluminum blanks, such as structural automotive components, are formed by gas tungsten arc welding a plurality of aluminum or aluminum-alloy sections. Preferably, a backup plate having a shallow longitudinal groove or a plurality of longitudinal grooves and a beveled electrode are employed. A preferred embodiment comprises the use of a multi-torch assembly for initial cleaning and subsequent smoothing of the resulting weld.
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