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Detection and prevention of hot cracks during laser welding of aluminium alloys using advanced simulation methods

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Heißrisse in Legierungen mit erhöhter Rissneigung sind oft sehr schwer zu vermeiden, da bisher eine geeignete Methodik für die Ermittlung adäquater Schweißparameter fehlte. In diesm Buch wird eine simulationsbasierte Methodik vorgestellt, mit der Heißrisse reduziert werden können. Damit können während der Definition der Prozessparameter einer Laserstrahl-Schweißverbindung Kosten und Zeit eingespart werdenSummay: Hot cracking, especially in alloys with increased hot crack suspectibility, is quite difficult to prevent, since the existed so far no adequate method to detect satisfactory welding parameters. Within this thesis a method, based on FE-simulations, is introduced, which can help the technologist to identify welding parameters advantageous to prevent hot cracking. Thus, with the help of this method time and costs can be saved during the technology design.

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Detection and prevention of hot cracks during laser welding of aluminium alloys using advanced simulation methods, Attila Komlódi

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2006
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