Precessing rivet and method for friction stir riveting

Details Precessing rivet and method for friction stir riveting Precessing rivet and method for friction stir riveting

2005-05-17

2005-05-17

Edmondson, L. (Department: 1725)

Metal fusion bonding

Including means to provide heat by friction between...

C228S112100, C228S114500

Reexamination Certificate

active

06892924

ABSTRACT:
A friction stir rivet is rotated in a precessing motion and driven through a first fusible workpiece into an engaged second fusible workpiece, causing local portions of the first and second workpieces to plasticize. When the rivet is driven through the first workpiece and into the second workpiece, rotation is stopped and the plasticized material solidifies around the rivet creating an enlarged weld joining the metal workpiece and encompassing the rivet, which provides additional mechanical strength.

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“Friction Stir Welding and Processing”, Jata K.V. pp. 1-13.

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