METHOD OF AND DEVICE FOR BUTT WELDING WITHOUT WELD FILLER MATERIALS THIN METAL SHEETS USING CLAMPING PRESSING DEVICES, AT LEAST ONE PRESSING ELEMENT BEING SUITABLE FOR APPLYING TWO OR MORE DISTINCT PRESSURE LEVELS

摘要

The invention relates to a device for the linear butt welding of thin met al sheets without weld filler materials comprising movable welding head, a c arrier table (1), a clamping device (3) having at least two pressing element s (4, 5) which operate independently of one another and at least one of the pressing elements (4, 5) being suitable for applying two or more distinct pr essure levels. Additional horizontal pressing elements (11) are further prov ided in order to press the metal sheets to be welded against one other while being deformed, until full-area contact of the metal-sheet edges butting ag ainst one another is achieved. The invention further relates to a welding me thod using such device.