Patent ID: 7240821
Filing Date: 2007-07-10
Classification: B23K,C09J

Abstract:
1. A method for weldbonding at least two work-pieces together comprising the steps of: applying a curable aerospace grade adhesive to a first surface of a first work-piece; bringing the first surface of the first work-piece into contact with a first surface of a second work-piece; creating a plurality of discontinuous friction stir welds by discontinuously friction stir welding the first work-piece to the second work-piece, wherein the discontinuous welds are tack welds having a low shear strength, and wherein the discontinuous welds prevent movement of the first work-piece in regard to the second work-piece and hold the first surface of the first work-piece in contact with the first surface of the second work-piece during curing; curing the adhesive below approximately 200° F.; and creating a joint having a shear strength of about 4,200 psi at room temperature by bonding the first surface of the first work-piece to the first surface of the second work-piece with the cured adhesive, wherein the adhesive carries the load of the created joint.