Method for welding and apparatus therefor

Details Method for welding and apparatus therefor Method for welding and apparatus therefor

1997-12-15

1999-10-19

Shaw, Clifford C.

Electric heating

Metal heating

Nonatmospheric environment at hot spot

219137R, B23K 9167

Patent

active

059683759

ABSTRACT:
The present invention relates to a method for welding comprising the steps of: contacting a plurality of workpieces to be welded having different heat capacities so as to form a boundary portion therebetween; placing a welding electrode in proximity to the boundary portion; generating an arc discharge between the welding electrode and the boundary portion; and supplying gas to the boundary portion, wherein more gas being supplied to one of the workpieces having a lower heat capacity than another workpiece having a higher heat capacity.

REFERENCES:
patent: 2862294 (1958-12-01), Philip
patent: 3548143 (1970-12-01), Reeh
patent: 3838243 (1974-09-01), Inagaki et al.
patent: 4090057 (1978-05-01), Okada
patent: 4296300 (1981-10-01), Bottiglia
patent: 5440099 (1995-08-01), Smith
patent: 5811756 (1998-09-01), Horita et al.

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