S. Nothdurft
H. Ohrdes
J. Twiefel
J. Wallaschek
M. Mildebrath
H. J. Maier
T. Hassel
L. Overmeyer
S. Kaierle

Influence of ultrasonic amplitude and position in the vibration distribution on the microstructure of a laser beam welded aluminum alloy

Journal of Laser Applications
Type: Zeitschriftenaufsatz (reviewed)
There is a wide selection of aluminum alloys for each purpose and according to diverse processing or treatment. Aluminum alloys have many advantages, e.g., low densities for lightweight construction. Furthermore, these materials are characterized by easy mechanical processing, corrosion resistance due to the durable and self-repairing surface layer, and good formability. Disadvantages are the tendencies toward pore or hot crack formation, a necessary adaption of the component geometry caused by lower strength in comparison to, e.g., steel, a low absorption due to high reflection in solid state and a high heat conduction rate that increases the energy input required.