Electrode wire for a roller seam welding machine

Details Electrode wire for a roller seam welding machine Electrode wire for a roller seam welding machine

1988-05-23

1989-12-12

Reynolds, Bruce A.

Electric heating

Metal heating

Of cylinders

219 81, B23K 116

Patent

active

048869538

ABSTRACT:
What is described is an electrode wire (20) which, in contrast to conventional electrode wire (10), is provided with flanges (30,31) formed on it to support it on the circumference of a roller electrode (12) at both sides of a guide groove (22,22'). The electrode wire (20) is broader than its contrast area on the work being welded and has a considerably broader contact area on the work being welded than the conventional electrode wire. As a result, metal sheets (for example lead-coated metal sheets of fuel tanks) are pressed together alongside the weld nugget as a result of which gaping apart of the sheets alongside the weld nugget and lateral tearing of the weld nugget are prevented. The profile of the electrode wire (20) projecting beyond the guide groove (22,22') is very thin and cannot be deformed laterally under transverse forces even if the electrode wire becomes soft during the welding. Welds produced with the electrode wire (20) have a considerably better fatigue strength than welds produced with the conventional electrode wire (10).

REFERENCES:
patent: 1635541 (1927-07-01), Conrad
patent: 2060859 (1933-10-01), Flynt

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