Patent ID: 8186567
Filing Date: 2012-05-29
Classification: B23K,C09J

Abstract:
1. A method for attaching a pair of work-pieces together, the method comprising: providing a pair of work-pieces having a layer of two-part structural epoxy paste adhesive therebetween; forming a plurality of tack welds, prior to a subsequent processing of curing the layer of two-part structural epoxy paste adhesive, by discontinuously friction stir welding together the pair of work-pieces to maintain the work-pieces in contact with one another during the subsequent process of curing; curing the layer of two-part structural epoxy paste adhesive at a temperature of between 20 degrees Celsius and 200 degrees Celsius, after forming the plurality of tack welds; and bonding the pair of work-pieces together, through the curing of the layer of the two-part structural epoxy paste adhesive, to create a joint that is completely sealed, the joint having a shear strength of about 4,200 psi at room temperature.