Metal fusion bonding – Process – Using dynamic frictional energy
Reexamination Certificate
2003-12-29
2008-11-25
Stoner, Kiley (Department: 1793)
Metal fusion bonding
Process
Using dynamic frictional energy
Reexamination Certificate
active
07455211
ABSTRACT:
A multi-pass friction stir weld joint and method for forming such joints are provided. The multi-pass weld joint is formed of at least first-pass and second-pass friction stir weld joints that are disposed in the workpiece in a substantially parallel configuration. The first- and second-pass joints define transversely opposite advancing and retreating sides, and the second-pass joint is disposed to at least partially overlap the retreating side of the first-pass joint. Thus, at least some of the material of the workpiece in the first-pass joint is processed during the formation of the second-pass joint.
REFERENCES:
patent: 5248077 (1993-09-01), Rhoades et al.
patent: 5460317 (1995-10-01), Thomas et al.
patent: 5813592 (1998-09-01), Midling et al.
patent: 6247633 (2001-06-01), White et al.
patent: 6634199 (2003-10-01), Nomura et al.
patent: 2003/0116609 (2003-06-01), Dracup et al.
patent: 2004/0074948 (2004-04-01), Kusunoki et al.
patent: 2005/0072832 (2005-04-01), Han et al.
patent: 2005/0133567 (2005-06-01), Runyan
patent: 2006/0013645 (2006-01-01), Ilyushenko et al.
patent: 2003-112271 (2003-04-01), None
patent: 2003266181 (2003-09-01), None
W.Thomas et al., The Simultaneous Use of Two or More Friction Stir Welding Tools, Jan. 13, 2005 www.twi.co.uk, 6 pages.
L. Cederqvist and A.P. Reynolds;Factors Affecting the Properties of Friction Stir Welded Aluminum Lap Joints; research development; 7 pages; Welding Journal, no date.
Murray Mahoney;Rockwell Scientific: Structural Materials; Sep. 29, 2003; 1 page; http://www.rsc.rockwell.com/structuralmaterials/index.html.
TWI World Centre for Materials Joining Technology;Friction Stir Welding-Materials and thicknesses; Sep. 29, 2003; 2 pages; http://www.twi.co.uk/j32k/unprotected/band—1/fswmat.html.
TWI World Centre for Materials Joining Technology; Stephan Kallee and Dave Nicholas;Friction Stir Welding at TWI; Sep. 29, 2003; 2 pages; http://www.twi.co.uk/j32k/unprotected/band—1/fswintro.html.
TWI World Centre for Materials Joining Technology;Friction Stir Welding—Superior weld quality; Sep. 29, 2003; 3 pages; http://www.twi.co/uk/j32k/unprotected/band—1/fswqual.html.
TWI World Centre for Materials Joining Technology;Friction Stir Welding—Intellectual Property Rights; Sep. 29, 2003; 2 pages; http://www.twi.co.uk/j32k/unprotected/band—1/fswipr.html.
TWI World Centre for Materials Joining Technology;Re-stir™—reversal stir welding; Oct. 17, 2003; 4 pages; http://www.twi.co.uk/j32k/unprotected/band—1/c1233.html.
Alston & Bird LLP
Stoner Kiley
The Boeing Company
LandOfFree
Multi-pass friction stir welding does not yet have a rating. At this time, there are no reviews or comments for this patent.
If you have personal experience with Multi-pass friction stir welding, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Multi-pass friction stir welding will most certainly appreciate the feedback.
Profile ID: LFUS-PAI-O-4031829