Shielding apparatus for metal processing operations

Details Shielding apparatus for metal processing operations Shielding apparatus for metal processing operations

1985-06-28

1987-02-10

Paschall, M. H.

Electric heating

Metal heating

By arc

219121PP, 219121L, 219121LG, B23K 2600

Patent

active

046424458

ABSTRACT:
The invention provides a generic shield that can be used in welding, surfacing and cladding operations. These operations can be performed with either high power density processes such as lasers and out of vacuum electron means or arc assisted processes and plasma welding and/or cladding systems. The shield physically isolates the shielded region from the surrounding area by providing a zone of inert gas over the work area. As a result, the shield is functionally made to resemble a chamber which moves over the substrate.

REFERENCES:
patent: 4078167 (1978-03-01), Banas et al.
patent: 4201905 (1980-05-01), Clark et al.
patent: 4315133 (1982-02-01), Morgan et al.
patent: 4319120 (1982-03-01), la Rocca
patent: 4347785 (1982-09-01), Chase et al.
patent: 4417125 (1983-11-01), Tsutsumi
patent: 4473074 (1984-09-01), Vassiliadis

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