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- Lokale Laserentfestigung von Halbzeugen und Bauteilen aus hochfesten Stählen
Lokale Laserentfestigung von Halbzeugen und Bauteilen aus hochfesten Stählen
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The subject of this thesis is the further development of the local laser softening of high strength steels. In order to achieve more homogeneous softening over the board thickness at high feed rates, two approaches for process adaptation are investigated. For a simultaneous process of laser cutting and laser softening, a processing head, is developed. The implications of laser-softened parts in the joining zones for resistance spot welding on crash performance are demonstrated.
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