Metal fusion bonding – Process – Using dynamic frictional energy
Reexamination Certificate
2005-02-15
2005-02-15
Edmondson, L. (Department: 1725)
Metal fusion bonding
Process
Using dynamic frictional energy
C228S002100, C228S114000, C228S114500
Reexamination Certificate
active
06854634
ABSTRACT:
A rivet having improved formability is provided. The rivet has a shank having a head at one end. The shank and the head have a refined grain structure. The rivet is manufactured from the region of the workpiece having a refined grain structure by first forming a region having a refined grain structure in a workpiece and then forming the rivet. The refined grain structure results in improved mechanical properties, such as formability, strength, toughness, ductility, corrosion resistance, and fatigue resistance. The improved formability of the rivet reduces the formation and propagation of cracks during the manufacture and installation of the rivets.
REFERENCES:
patent: 3688080 (1972-08-01), Cartwright et al.
patent: 5330594 (1994-07-01), Gallagher, Jr.
patent: 5460317 (1995-10-01), Thomas et al.
patent: 5469617 (1995-11-01), Thomas et al.
patent: 5554233 (1996-09-01), Heitmann et al.
patent: 5680690 (1997-10-01), Briles et al.
patent: 6213379 (2001-04-01), Takeshita et al.
patent: 6230957 (2001-05-01), Arbegast et al.
patent: 6230958 (2001-05-01), Coletta et al.
patent: 6638381 (2003-10-01), Keener et al.
patent: 6726085 (2004-04-01), Litwinski et al.
patent: 20030111143 (2003-06-01), Wheeler
patent: 1 162 283 (2001-12-01), None
patent: WO 97 15462 (1997-05-01), None
patent: WO 0027559 (2000-05-01), None
Donald S. Clark, Ph.D. and Wilbur R. Varney, M.S.,Physical Metallurgy For Engineers,Jan. 31, 1962, four pages, second edition, D. Van Nostrand Company, Inc., Princeton, New Jersey.
Litwinski Edward
Toosky Rahmatollah F.
Alston & Bird LLP
Edmondson L.
The Boeing Company
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