Metal fusion bonding – Process – Using dynamic frictional energy
Reexamination Certificate
2008-03-14
2010-12-21
Ward, Jessica L (Department: 1793)
Metal fusion bonding
Process
Using dynamic frictional energy
Reexamination Certificate
active
07854362
ABSTRACT:
A multi-shouldered friction stir welding tool comprises an integral shank-pin unit having a plurality of pin portions for driving into a plurality of joints. A shank portion of the shank-pin unit is for attachment to an optional axial tension rod. A plurality of friction stir welding modules comprise a pair of shoulders that is connected to the shank-pin unit. The proximal end of each shoulder faces the pin portion of the shank-pin unit, whereby the shoulder and pin(s) rotate in unison. A pair of split collars or a pair of nuts is connected to the shank-pin unit and faces the distal end of each shoulder. The plurality of friction stir welding modules are connected to each other and rotate in unison to simultaneously make a plurality of parallel welds.
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Definiti
Chontas Trent A.
Cobes John W.
Fridy Joseph M.
Stol Israel
Alcoa Inc.
Greenberg & Traurig, LLP
Ha Steven
Ward Jessica L
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