Arc-enhanced friction stir welding

Details Arc-enhanced friction stir welding Arc-enhanced friction stir welding

2006-07-18

2006-07-18

Shaw, Clifford C. (Department: 1725)

Electric heating

Metal heating

Nonatmospheric environment at hot spot

C228S112100

Reexamination Certificate

active

07078647

ABSTRACT:
Friction stir welding is enhanced by preheating of the workpiece with an electrical arc, such as an arc applied by a common gas-tungsten arc welding (GTAW) torch. As the arc is moved about a path on the workpiece, it preheats or partially welds the path, with the friction stir welding head following along the path to complete the weld.

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