Weldable aluminum stud

Details Weldable aluminum stud Weldable aluminum stud

2005-03-01

2005-03-01

Saether, Flemming (Department: 3677)

Expanded, threaded, driven, headed, tool-deformed, or locked-thr

Threaded fastener locked to a discreet structure

Design of fastener or substructure restricts rotation

C411S901000, C411S914000, C219S098000, C219S099000, C148S247000

Reexamination Certificate

active

06860687

ABSTRACT:
A weld-on part made of aluminum or an aluminum alloy, such as but not limited to a stud (1), which has a surface which is at least partially provided with a layer (5) which contains a titanium containing material. The stud (1) is treated with a chrome-free passivating solution which imparts corrosion resistance while simultaneously causing a layer (5) of titanium containing material to be formed on at least a portion of the surface of the stud (1). The layer (5) of titanium containing material permits the stud (1) to be satisfactorily welded to a surface, without the occurrence of arc jumping or blowing, in part, by lowering contact resistance during the welding process.

REFERENCES:
patent: 2413370 (1946-12-01), Palmer
patent: 2491479 (1949-12-01), Dash
patent: 2670424 (1954-02-01), Martin
patent: 2858414 (1958-10-01), Dash
patent: 3481634 (1969-12-01), Rondeau
patent: 4326894 (1982-04-01), Konnert
patent: 4684304 (1987-08-01), Franks
patent: 5391238 (1995-02-01), Reichgott
patent: 5584946 (1996-12-01), Karmaschek
patent: 5618491 (1997-04-01), Kurup et al.
patent: 5685680 (1997-11-01), Duffy
patent: 5728233 (1998-03-01), Ikeda

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