Product Code: JLA_2_3_17

Authors:
Friedrich Dausinger
Markus Beck
Jae H. Lee
Eckhard Meiners
Thomas Rudlaff
Jialin Shen
Institut fu¨r Strahlwerkzeuge, University of Stuttgart, Federal Republic of Germany

In cutting or welding processes with lasers, deep penetration mechanisms allow high energy coupling rates. In surface treatment processes such as martensitic hardening, cladding and alloying, deep penetration of the laser beam is mostly not applicable. This generally leads to insufficient coupling rates. In this contribution several ways of enhancing the coupling rate are summarized. Following some theoretical considerations, results of experimental verifications are given.