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AssigneeRossell Electronique SA
InventorJame Rossell
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In the use of U-shaped electrodes with a current supply and return in regards to the working area whereby for the stripping of insulated work pieces a heating current is applied before the welding operation, different conductor cross section requirements for the heating and welding operation present themselves. During the heating operation a cross section reduction is necessary to obtain enough heat output, but this is undesired for the welding operation. In order to solve this contradiction it is proposed to supply an electrode with a heating current supply (25a) and a return (25b), leading to the working area and returning respectively and to apply a common potential to the supply and return for the welding operation.
A method for operating a welding electrode arrangement to weld a metal work piece covered by a meltable cover wherein the arrangement comprises a substantially U-shaped electrode with two legs linked at a bottom portion to form an electrode working area, and a counter-electrode, the method comprising the steps of:
A welding apparatus for welding metal work pieces covered by meltable covers, comprising:
Dependencies are inferred from the claim text.