Ti-6Al-4V is an alloy that is increasingly used in aeronautics due to its high mechanical properties coupled with the lightness. An effective technology used to manufacture titanium components with a reduced buy to fly ratio is the laser beam welding. Previous studies showed that the key factor that rules the mechanical properties and the fatigue life of the joint is its morphology. The aim of this paper was to investigate the influence of the main process parameters, such as welding speed and laser power, on the geometrical features of the joint, in terms of undercut, underfill, reinforcement and so on. Three millimetres thick Ti-6Al-4V rolled sheets were welded in butt joint configuration by using a Nd-YAG laser source. The joint performances were studied in terms of weld morphology, microstructure and Vickers microhardness. Then, defects such as underfill and reinforcement, controlling the whole weld morphology, were observed, and the relationship between the occurrence, the entity of these defects and the process parameters was studied. © (2015) Trans Tech Publications, Switzerland.

Effect of the Process Parameters on the Geometrical Defects of Ti-6Al-4V Hot Rolled Sheets Laser Beam Welded / Boccarusso, Luca; Arleo, Giuseppe; Astarita, Antonello; Bernardo, Franco; de Fazio, Piero; Durante, Massimo; Giudice, Giuseppe; Minutolo, Fabrizio Memola Capece; Sepe, Raffaele; Squillace, Antonino. - 651-653:(2015), pp. 901-906. (Intervento presentato al convegno 18th International ESAFORM Conference on Material Forming, ESAFORM 2015 tenutosi a Graz, Austria nel 15/04/2015 - 17/04/2015) [10.4028/www.scientific.net/KEM.651-653.901].

Effect of the Process Parameters on the Geometrical Defects of Ti-6Al-4V Hot Rolled Sheets Laser Beam Welded

BOCCARUSSO, LUCA
;
ASTARITA, ANTONELLO;DURANTE, MASSIMO;GIUDICE, GIUSEPPE;SEPE, RAFFAELE;SQUILLACE, ANTONINO
2015

Abstract

Ti-6Al-4V is an alloy that is increasingly used in aeronautics due to its high mechanical properties coupled with the lightness. An effective technology used to manufacture titanium components with a reduced buy to fly ratio is the laser beam welding. Previous studies showed that the key factor that rules the mechanical properties and the fatigue life of the joint is its morphology. The aim of this paper was to investigate the influence of the main process parameters, such as welding speed and laser power, on the geometrical features of the joint, in terms of undercut, underfill, reinforcement and so on. Three millimetres thick Ti-6Al-4V rolled sheets were welded in butt joint configuration by using a Nd-YAG laser source. The joint performances were studied in terms of weld morphology, microstructure and Vickers microhardness. Then, defects such as underfill and reinforcement, controlling the whole weld morphology, were observed, and the relationship between the occurrence, the entity of these defects and the process parameters was studied. © (2015) Trans Tech Publications, Switzerland.
2015
978-303835471-0
Effect of the Process Parameters on the Geometrical Defects of Ti-6Al-4V Hot Rolled Sheets Laser Beam Welded / Boccarusso, Luca; Arleo, Giuseppe; Astarita, Antonello; Bernardo, Franco; de Fazio, Piero; Durante, Massimo; Giudice, Giuseppe; Minutolo, Fabrizio Memola Capece; Sepe, Raffaele; Squillace, Antonino. - 651-653:(2015), pp. 901-906. (Intervento presentato al convegno 18th International ESAFORM Conference on Material Forming, ESAFORM 2015 tenutosi a Graz, Austria nel 15/04/2015 - 17/04/2015) [10.4028/www.scientific.net/KEM.651-653.901].
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Utilizza questo identificativo per citare o creare un link a questo documento: https://hdl.handle.net/11588/612930
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