Method and apparatus for the expansion of a hollow article

A method and apparatus for the expansion of a hollow article out of a memory alloy, in which the hollow article, cooled below the transformation temperature, is mounted between two mandrels each having an opposing taper, and in a first phase is expanded on one face to the final dimension by one mand...

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Bibliographic Details
Main Authors KUNZLI, ROLAND, MELTON, KEITH, MERCIER, OLIVIER
Format Patent
LanguageEnglish
Published 20.05.1980
Subjects
CLADDING OR PLATING BY SOLDERING OR WELDING
COMBINED OPERATIONS
CUTTING BY APPLYING HEAT LOCALLY, e.g. FLAME CUTTING
MACHINE TOOLS
MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVINGMATERIAL
METAL-WORKING NOT OTHERWISE PROVIDED FOR
OTHER WORKING OF METAL
PERFORMING OPERATIONS
PUNCHING METAL
SOLDERING OR UNSOLDERING
TRANSPORTING
UNIVERSAL MACHINE TOOLS
WELDING
WORKING BY LASER BEAM
WORKING OR PROCESSING OF SHEET METAL OR METAL TUBES, RODS ORPROFILES WITHOUT ESSENTIALLY REMOVING MATERIAL
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Summary:A method and apparatus for the expansion of a hollow article out of a memory alloy, in which the hollow article, cooled below the transformation temperature, is mounted between two mandrels each having an opposing taper, and in a first phase is expanded on one face to the final dimension by one mandrel and is supported against a stop, whereupon the final shape is produced by pulling the other mandrel through the hollow article from the opposite face.
Bibliography:Application Number: US19780971634