In this experimental work the weldability of an Al alloy AA 2024 - T3 by using two different laser sources, (CO2 and Nd:YAG), has been tested for experiments. A ROFIN SINAR, 1500 W continuous wave (c.w.) max power level, emitting at 10.6 μm, and a HAAS TRUMPH source, 3000 W max power level, pulsed beam, that produces an 1.06 μm wavelength have been used. The thicknesses employed are 0.8 - 1.6 and 2.0 mm for the Nd:YAG, 1 and 1.6 mm for the CO 2. In order to define a possible laser welding process optimisation versus the best quality and relative mechanical properties of the butt joints, different laser working parameters have been studied and experimented. Moreover two diverse welding techniques, that is by using a filler wire or without one have been applied and the relative results have been compared. The best selected butt joints have been characterized by some visual examinations, micro and macrographs of transverse sections, micro-hardness data and plots as well as some tensile tests. Finally, according to the results as above, physical-technological evaluations and comparisons have been reported.
Laser welding of the AA 2024-T3 aluminium alloy by using two different laser sources (Nd:YAG or CO2) / Ludovico, Antonio Domenico; Daurelio, G.; DE FILIPPIS, Luigi Alberto Ciro; Scialpi, A.; Squeo, F.. - 5777:PART II(2005), pp. 887-894. (Intervento presentato al convegno XV International Symposium on Gas Flow, Chemical Lasers, and High-Power Lasers tenutosi a Prague, Czech Republic | nel August 30, 2004) [10.1117/12.611205].
Laser welding of the AA 2024-T3 aluminium alloy by using two different laser sources (Nd:YAG or CO2)
LUDOVICO, Antonio Domenico;DE FILIPPIS, Luigi Alberto Ciro;
2005-01-01
Abstract
In this experimental work the weldability of an Al alloy AA 2024 - T3 by using two different laser sources, (CO2 and Nd:YAG), has been tested for experiments. A ROFIN SINAR, 1500 W continuous wave (c.w.) max power level, emitting at 10.6 μm, and a HAAS TRUMPH source, 3000 W max power level, pulsed beam, that produces an 1.06 μm wavelength have been used. The thicknesses employed are 0.8 - 1.6 and 2.0 mm for the Nd:YAG, 1 and 1.6 mm for the CO 2. In order to define a possible laser welding process optimisation versus the best quality and relative mechanical properties of the butt joints, different laser working parameters have been studied and experimented. Moreover two diverse welding techniques, that is by using a filler wire or without one have been applied and the relative results have been compared. The best selected butt joints have been characterized by some visual examinations, micro and macrographs of transverse sections, micro-hardness data and plots as well as some tensile tests. Finally, according to the results as above, physical-technological evaluations and comparisons have been reported.I documenti in IRIS sono protetti da copyright e tutti i diritti sono riservati, salvo diversa indicazione.
