Additive friction stir methods for joining materials are provided. The methods comprise
providing first and second substrates to be joined; providing a forming plate comprising one …

A method for joining materials using additive friction stir techniques is provided. The method
joins a material to a substrate, especially where the material to be joined and the substrate …

A friction stir processing (FSP) tool includes a pin having a pin body and a rotational axis.
The pin is configured to rotate about the rotational axis in a rotational direction. The pin has …

A non-weldable workpiece may be affixed to a weldable workpiece by friction stirring the
weldable workpiece to plasticize and extrude at least a portion thereof into a recess in the …

In a process for friction stir welding together pieces of dis similar material, a first piece of a
second metal is overlaid onto a first piece of a first metal that is dissimilar from the second …

A low-temperature friction-based coating method termed friction stir fabrication (FSF) is
disclosed, in which material is deposited onto a substrate and subsequently stirred into the …

The present invention relates to tooling and methods for dis posing, coating, building up,
repairing, or otherwise modify ing the Surface of a metal Substrate using frictional heating …

An additive friction stir fabrication method and system is described which may be used to
fabricate and join a rib to a metallic substrate or to repair a defect in a metallic substrate …

(57) ABSTRACT A system and method of joining at least two workpieces together using a
friction rivet and a friction rivet cap that are friction stirred together after a cutting tip or cutting …

An additive friction stir fabrication method and system is described which may be used to
fabricate and join a rib to a metallic substrate or to repair a defect in a metallic substrate …