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New techniques and process control in car body welding with laser radiation

Neue Techniken und Verfahrenskontrolle beim Schweißen von Autokarosserien mit Laserstrahlung
: Imhoff, R.; Behler, K.; Beyer, E.

Automotive Automation Ltd., Croydon:
21st International Symposium on Automotive Technology and Automation 1989. Vol.I. Proceedings
Croydon, 1989
ISBN: 0-947719-31-8
International Symposium on Automotive Technology and Automation (ISATA) <21, 1989, Wiesbaden>
Conference Paper
Fraunhofer ILT ()
Auto-Karosserie-Schweißen; car body welding; characteristic; Charakteristika des Fokussierens; fillet weld; flared-v butt weld; focussing; Kehlnaht; overlap welding; process control; Stoßschweißen; Überlappschweißen; Verfahrenskontrolle

In this paper some examples are discussed concerning overlap welding of zinc-coated and uncoated plates of a typical thickness between 0.7 mm and 4 mm. A 5 kW CO sub 2-laser is used for welding, combined with a roboter system and a gantry. The possibility of process control is discussed at some examples. A new technique using the beam polarization is described.