Verfahren zum Kühlen des Schweißnahtbereichs beim Laserschweißen und Vorrichtung zum Durchführen dieses Verfahrens

摘要

PCT No. PCT/EP95/04044 Sec. 371 Date Jun. 11, 1997 Sec. 102(e) Date Jun. 11, 1997 PCT Filed Oct. 14, 1995 PCT Pub. No. WO96/11770 PCT Pub. Date Apr. 25, 1996A process and an apparatus for the cooling of a welding seam area during laser welding of plates or strips, preferably used in car body construction in automotive engineering. It is described how expediently the cooling agent supply and also the supply of an inert gas veil built up between the focus and liquid coolant is achieved so that the liquid coolant is prevented from entering the welding seam area and causing detrimental effects there.