Electric heating – Metal heating – By arc
Patent
1991-06-05
1994-04-26
Albritton, C. L.
Electric heating
Metal heating
By arc
21912182, B23K 2600
Patent
active
053068904
ABSTRACT:
A method of producing a corrugated metal sheeting including a flat metal sheet and a corrugated metal sheet joined to each other, which sheeting is used to produce a carrier or honeycomb structure for carrying catalytic agents used for purifying exhaust gases from, for example, an internal combustion engine of an automobile. In the method, the flat and corrugated metal sheets are brought together so that corrugations of the corrugated metal sheet are successively brought into contact with the flat metal sheet in such a manner that the corrugated metal sheet is freely movable to thereby release resilient stresses therefrom, and a laser beam is incident on a contact line between the flat metal sheet and each of the corrugations of the corrugated metal sheet, to thereby weld them to each other.
REFERENCES:
patent: 3185815 (1965-05-01), Anderson
patent: 3486218 (1969-12-01), Buyze
patent: 4824011 (1989-04-01), Maus et al.
patent: 4912297 (1990-03-01), Beyer et al.
patent: 4942285 (1990-07-01), Ishikawa
Hamada Naoya
Ishibashi Akira
Kido Motoi
Minamida Katsuhiro
Oikawa Masahi
Albritton C. L.
Nippon Steel Corporation
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