Dual walled titanium tubing and methods of manufacturing the tubing
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United States of America Patent
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Nov 7, 2017
Issued Date -
N/A
app pub date -
Jul 21, 2016
filing date -
Feb 11, 2015
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Abstract
Within examples, a method of manufacturing a double-walled titanium conduit is described. Example methods include stitch welding multiple concentric sheets to form a stitch layer, providing the stitch layer between an inner wall and an outer wall of the double-walled titanium conduit, circumferentially seam welding the inner wall and the outer wall to the stitch layer to create a welded assembly, die forming the welded assembly at temperature and pressure to form inner structures between the multiple concentric sheets according to stitch welding lines and to enable a diffusion bond process among the inner wall, the stitch layer, and the outer wall, and removing the double-walled titanium conduit from the die.
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