Process for welding a stack of thin metal sheets

Details Process for welding a stack of thin metal sheets Process for welding a stack of thin metal sheets

1995-04-07

1996-07-02

Shaw, Clifford C.

Electric heating

Metal heating

By arc

21912164, 219137R, B23K 9007

Patent

active

055324533

ABSTRACT:
There has been provided a process for spot welding a stack of thin metal strips or layers with a non-depositing welder gun. The process involves forming a stack of thin metal layers, compressing the layers between the jaws of a press, one of which has at least one receptacle for and adapted to receive the non-depositing welder gun tip, placing the gun in the receptacle, optionally flooding with an inert gas, and applying electrical power to the gun for a period of from 1 to 10 seconds. The process is especially useful in the formation of a stack of thin metal strips for making a multicellular honeycomb converter body for removing pollutants from the exhaust of an internal combustion engine.

REFERENCES:
patent: 2871336 (1959-01-01), Lobosco et al.
patent: 2922023 (1960-01-01), Hackman et al.
patent: 3476908 (1969-11-01), Frindel
patent: 3585350 (1971-06-01), Voytko
patent: 5115115 (1992-05-01), Alborante
patent: 5324913 (1994-06-01), Oberg et al.
patent: 5437936 (1995-08-01), Johnson
"Welding Hanbook" vol. 2, Eighth Edition 1991, 1992 Gas Tungsten Arc Welding Chapter 3, pp. 74-107.
Ibid. pp. 908-909 "Pressure Gas Welding".

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