Lehrstuhl für Fertigungstechnologie, Universität Erlangen-Nürnberg



Laser beam welding on light-metal matrix composites



Project Status: finished

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Light-alloy-metal matrix composites, such as fibre- and particle-reinforced magnesium or aluminium alloys, show high potential to extend the application-limiting factors of monolithic lightweight materials. These so-called MMCs can be used for mechanically and thermally highly stressed parts, e.g. car and aircraft engine components. Laser beam welding is a very flexible technology for joining MMCs with un-reinforced components. The process windows for the laser beam welding of carbon- and aluminiumoxide-fibre-reinforced magnesium alloy AZ91 with the un-reinforced AZ91 was determined for both Nd:YAG and CO2 lasers. Furthermore, with the employed strategy of lateral beam displacement, it was also possible to successfully join the SiC-particle-reinforced aluminium alloy AA6061 with un-reinforced AA6016.


Letztes Update: 07.05.2010