Apparatus and method for narrow groove welding

Details Apparatus and method for narrow groove welding Apparatus and method for narrow groove welding

1994-12-12

1997-06-03

Shaw, Clifford C.

Electric heating

Metal heating

Nonatmospheric environment at hot spot

219 75, 219136, B23K 9167

Patent

active

056350856

ABSTRACT:
Narrow groove welding is accomplished with a welding apparatus containing an improved gas lens made of a sintered bronze material. The sintered bronze material requires the use of a higher gas supply pressure than is commonly used, but it results in a higher volume of laminar gas flow, thereby facilitating deep narrow groove welds. The sintered gas lens does not require the use of a skirt below the lens to maintain a column of laminar gas flow, thereby making it possible to mount a light source below the lens directly within the flow of cover gas and away from the line of view of the operator.

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