Compact coaxial nozzle for laser cladding

Details Compact coaxial nozzle for laser cladding Compact coaxial nozzle for laser cladding

2007-08-21

2007-08-21

Evans, Geoffrey S. (Department: 1725)

Electric heating

Metal heating

By arc

C219S121840

Reexamination Certificate

active

10956991

ABSTRACT:
The present invention provides a compact coaxial nozzle useful in laser welding operations where the welding piece has a restricted or confined geometry. The nozzle is generally conical in shape, terminating in a relatively small tip. The nozzle includes a central laser discharge opening. The conical shape allows movement of the nozzle in confined areas. The nozzle includes a cooling jacket for proving coolant to the nozzle. The nozzle also includes a powder mixing chamber that provides good mixing of powdered filler material with a coaxial discharge around the laser. Finally, the nozzle further provides for inert gas to pass from an upper inlet, through passageways, out of a ring discharge. The ring discharge is also coaxially disposed around the central laser. Further the ring discharge provides mixing of the inert gas in order to minimize turbulent flow problems associated with restrictor plates.

REFERENCES:
patent: 4724299 (1988-02-01), Hammeke
patent: 4804815 (1989-02-01), Everett
patent: 5043548 (1991-08-01), Whitney et al.
patent: 5160822 (1992-11-01), Aleshin
patent: 5321228 (1994-06-01), Krause et al.
patent: 5418350 (1995-05-01), Freneaux et al.
patent: 5477026 (1995-12-01), Buongiorno
patent: 5837960 (1998-11-01), Lewis et al.
patent: 5961862 (1999-10-01), Lewis et al.
patent: 6172327 (2001-01-01), Aleshin et al.
patent: 6316744 (2001-11-01), Nowotny et al.
patent: 6388227 (2002-05-01), Dykhno et al.
patent: 6423926 (2002-07-01), Kelly
patent: 6534745 (2003-03-01), Lowney
patent: 2005/0056628 (2005-03-01), Hu
patent: 2005/0120941 (2005-06-01), Hu et al.
patent: 2006/0266740 (2006-11-01), Sato et al.
patent: 9-70682 (1997-03-01), None

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