Patent ID: 6710278
Filing Date: 2004-03-23
Classification: B23K

Abstract:
An apparatus for welding a mesh from a first plurality of substantially parallel wires and a second plurality of substantially parallel wires extending normal to the first plurality, comprising:a rotatably mounted upper welding electrode of polygonal cross-section provided on its circumference with a plurality of welding surfaces adapted selectively to contact at least one wire of the first plurality thereof in substantially parallel relationship therewith; a rotatably mounted lower welding electrode of polygonal cross-section provided on its circumference with plurality of welding surfaces adapted selectively to contact at least one wire of the second plurality thereof in substantially parallel relationship therewith; manifold means in the upper and lower welding electrodes for forming at least one opening in each of the welding surfaces and individually connectable with a source of pressurized cleaning medium in response to a welding surface being in its parallel relationship with a wire for ejecting cleaning medium over the welding surface.