"The idea that cavalry will be replaced by these iron coaches is absurd. It is little short of treasonous."
|6986452||Friction stir welding as a rivet replacement technology|
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. ...