Metal treatment – Process of modifying or maintaining internal physical... – Heating or cooling of solid metal
Reexamination Certificate
2004-12-03
2009-10-13
King, Roy (Department: 1793)
Metal treatment
Process of modifying or maintaining internal physical...
Heating or cooling of solid metal
C072S343000
Reexamination Certificate
active
07601232
ABSTRACT:
Described herein are methods for forming titanium alloy tubes having an α-β grain structure. The methods include the steps of hot-working a titanium alloy workpiece at a temperature below the β-transus temperature of the workpiece and above the recrystallization temperature of the workpiece to produce an α-β titanium alloy preform hollow. Subsequently, the α-β titanium alloy preform hollow is flowformed, thereby forming a α-β titanium alloy tube.
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Klocke, F., et al., “Laser-Assisted Metal Spinning of Advanced Materials,”Fraunhofer Institute of Production Technology IPT, pp. 1-5.
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Statement regarding prior activities of Dynamic Machine Works, Inc.
Klocke, F., et al., “Laser-Assisted Metal Spinning of Advanced Materials,”Fraunhofer Institute of Production Technology IPT, pp. 1-5, 2003.
Fonte, V., “Flowforming of Thin-Walled Tubes and Cylinders,”Dynamic Machine Works, Inc., 2001.
Statement regarding prior activities of Dynamic Machine Works, Inc., Oct. 19, 2005.
Durfee George L.
Fonte Matthew V.
Heymans John F.
Dynamic Flowform Corp.
King Roy
Sunstein Kann Murphy & Timbers LLP
Zhu Weiping
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