Friction-stir weld-tool and method
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United States of America Patent
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May 14, 2013
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N/A
app pub date -
Jul 1, 2010
filing date -
Jul 1, 2009
priority date (Note) -
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Abstract
A method for joining a tube and tube plate for use in a tube-and-shell heat exchanger is disclosed. The method enables a joint between the tube and tube plate that is substantially hermetic and substantially corrosion-resistant. The method comprises providing an anvil inside the tube, wherein the anvil supports the tube wall during a friction-stir welding process used to join the tube and tube plate. The anvil facilitates formation of a reliable weld region and enables faster friction-stir welding.
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