Friction stir welding as a rivet replacement technology

Details Friction stir welding as a rivet replacement technology Friction stir welding as a rivet replacement technology

2006-01-17

2006-01-17

Stoner, Kiley S. (Department: 1725)

Metal fusion bonding

Process

Using dynamic frictional energy

C228S002100

Reexamination Certificate

active

06986452

ABSTRACT:
The present invention provides an improved method and apparatus for joining aluminum allow panels (eg. 2090-T83 aluminum lithium alloy). The method preliminarily positions two panels and skin panels next to each other so that a stringer panel overlaps a skin panel. A friction stir weld pin tool penetrates through one panel and at least partially into another panel. The panel material around the pin tool is frictionally heated, plasticized and joined until the faying surface is substantially consumed. In another embodiment, a tee-shaped structure is formed using friction stir welding to join three panels together. A projecting part of one panel (center, vertical) provides material that becomes a contoured corner panel below two side, horizontal panels after friction stir welding is completed (FIGS.29, 30)

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