Superelastic element made of a copper alloy and method for imparting a curvature of a given geometry
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United States of America Patent
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Sep 18, 2007
Grant Date -
Oct 14, 2004
app pub date -
Apr 30, 2004
filing date -
Dec 19, 2001
priority date (Note) -
Expired
status (Latency Note)
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Abstract
In a method of bending a rod- or rod-like unfinished workpiece of a single crystal material of a Cu alloy the workpiece is bent at an elevated temperature so as to provide for a predetermined curvature and then the workpiece is further heated whereby the curvature is established but the superelasticity is lost, the workpiece is cooled down and then tempered at another raised temperature for at least one hour and is then immediately quenched in a cooling medium.
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