METHOD FOR WELDING SHEET METAL BODIES, AND A RESISTANCE ROLLER SEAM WELDING MACHINE

The invention relates to a method for welding overlapping edge regions (7',7") of sheet metal bodies (7). Said method being characterized in that prior to welding the edge regions (7',7"), the edge regions are heated to a temperature T1 below the welding temperature by 200 °C for...

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Bibliographische Detailangaben
1. Verfasser:	UMBRICHT, Ruedi
Format:	Patent
Sprache:	eng ; fre ; ger
Schlagworte:	AUXILIARY OPERATIONS USED IN CONNECTION WITH METAL-WORKINGWITHOUT ESSENTIALLY REMOVING MATERIAL CLADDING OR PLATING BY SOLDERING OR WELDING CUTTING BY APPLYING HEAT LOCALLY, e.g. FLAME CUTTING MACHINE TOOLS MANUFACTURE OF METAL SHEETS, WIRE, RODS, TUBES OR PROFILES,OTHERWISE THAN BY ROLLING MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVINGMATERIAL METAL-WORKING NOT OTHERWISE PROVIDED FOR PERFORMING OPERATIONS PUNCHING METAL SOLDERING OR UNSOLDERING TRANSPORTING WELDING WORKING BY LASER BEAM WORKING OR PROCESSING OF SHEET METAL OR METAL TUBES, RODS ORPROFILES WITHOUT ESSENTIALLY REMOVING MATERIAL
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Beschreibung
Zusammenfassung:	The invention relates to a method for welding overlapping edge regions (7',7") of sheet metal bodies (7). Said method being characterized in that prior to welding the edge regions (7',7"), the edge regions are heated to a temperature T1 below the welding temperature by 200 °C for example in order to then be brought together and welded. Thus, an annealing of the microstructure of the sheet is achieved, and as a result, an excessive hardening of the welding seam, and the subsequent problems upon further processing, can be prevented. The device for carrying out the method comprises a heating zone which is arranged between the bending station and the welding station in order to heat the edge regions (7',7").