Process for the manufacture of metal tubes
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United States of America Patent
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Jan 20, 1998
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N/A
app pub date -
May 11, 1994
filing date -
May 11, 1994
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Abstract
A seamless metal tube is made by elongating an assembly of a tube blank and a metal core by mechanical working, and then stretching the core plastically so that it diminishes in diameter sufficiently to permit its removal from the tube. The core metal is preferably a shape memory alloy.
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