Gimballing roller device for friction stir welding method

Details Gimballing roller device for friction stir welding method Gimballing roller device for friction stir welding method

2010-03-04

2011-12-20

Ward, Jessica L (Department: 1735)

Metal fusion bonding

Process

Using dynamic frictional energy

C228S002100

Reexamination Certificate

active

08079507

ABSTRACT:
A friction stir welding (FSW) apparatus has an FSW tool adapted for joining work pieces supportable against a backing anvil. The FSW apparatus comprises a pair of clamping rollers maintained in substantially perpendicular relationship to the backing anvil as the FSW tool moves along the tool path. A roller pivot joint of the FSW apparatus maintains a cylindrical roller outer surface of each clamping roller in substantially parallel relationship to the top sides of the work pieces. The roller pivot joint may include a gimballing roller bearing to which the clamping roller is mounted. The roller bearing is universally movable in a variety of directions to maintain the perpendicular relationship of the clamping rollers relative to the backing anvil.

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