Verfahren zum Steigern der Nahttiefe beim Laserschweißen von Kfz-Bauteilen mit komplexen 3D-Strukturen

In a process for seam depth control during laser beam welding, especially of aluminium automobile body parts, the solid state laser optics and thus the beam incidence are inclined at a specific angle in the range 15-35 deg to the normal to the workpiece surface, the alignment of the optics being ind...

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Bibliographische Detailangaben
Hauptverfasser:	ZOPF, PETER, PAETHE, DIETER
Format:	Patent
Sprache:	ger
Schlagworte:	CLADDING OR PLATING BY SOLDERING OR WELDING CUTTING BY APPLYING HEAT LOCALLY, e.g. FLAME CUTTING MACHINE TOOLS METAL-WORKING NOT OTHERWISE PROVIDED FOR PERFORMING OPERATIONS SOLDERING OR UNSOLDERING TRANSPORTING WELDING WORKING BY LASER BEAM
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Beschreibung
Zusammenfassung:	In a process for seam depth control during laser beam welding, especially of aluminium automobile body parts, the solid state laser optics and thus the beam incidence are inclined at a specific angle in the range 15-35 deg to the normal to the workpiece surface, the alignment of the optics being independent of the welding direction. Preferably, when laser beam welding steel (St 1403) components, a beam inclination of 25 deg is chosen at a laser power (P) of more than 1600 W and a focal diameter (df) of 0.8 mm.