This paper presents the recent results in micro-welding of nearly eutectoid steels obtained with a nanosecond pulsed laser. By using this source, good penetration depth and seam geometry can be obtained with minimum energy delivered to the work piece, and minimum heat affected zone, if compared to long pulse laser sources or low energy density sources. Moreover, by using appropri- ated controlled axes, high welding rates and high flexibility, in terms of seam paths, are easily ob- tained. A numerical simulation of micro-welding of nearly eutectoid steels by nanosecond pulsed laser is carried out to evaluate the weld pool dimension and the heat-affected zone extension.

FORTUNATO A., ASCARI A., ORAZI L., CAMPANA G., CUCCOLINI G. (2012). Micro welding of steels by nanosecond pulsed laser. Japan Laser Processing Society.

Micro welding of steels by nanosecond pulsed laser

FORTUNATO, ALESSANDRO;ASCARI, ALESSANDRO;ORAZI, LEONARDO;CAMPANA, GIAMPAOLO;CUCCOLINI, GABRIELE
2012

Abstract

This paper presents the recent results in micro-welding of nearly eutectoid steels obtained with a nanosecond pulsed laser. By using this source, good penetration depth and seam geometry can be obtained with minimum energy delivered to the work piece, and minimum heat affected zone, if compared to long pulse laser sources or low energy density sources. Moreover, by using appropri- ated controlled axes, high welding rates and high flexibility, in terms of seam paths, are easily ob- tained. A numerical simulation of micro-welding of nearly eutectoid steels by nanosecond pulsed laser is carried out to evaluate the weld pool dimension and the heat-affected zone extension.
2012
Proceedings of LPM2012 - the 13th International Symposium on Laser Precision Microfabrication
1
6
FORTUNATO A., ASCARI A., ORAZI L., CAMPANA G., CUCCOLINI G. (2012). Micro welding of steels by nanosecond pulsed laser. Japan Laser Processing Society.
FORTUNATO A.; ASCARI A.; ORAZI L.; CAMPANA G.; CUCCOLINI G.
File in questo prodotto:
Eventuali allegati, non sono esposti

I documenti in IRIS sono protetti da copyright e tutti i diritti sono riservati, salvo diversa indicazione.

Utilizza questo identificativo per citare o creare un link a questo documento: https://hdl.handle.net/11585/155086
 Attenzione

Attenzione! I dati visualizzati non sono stati sottoposti a validazione da parte dell'ateneo

Citazioni
  • ???jsp.display-item.citation.pmc??? ND
  • Scopus ND
  • ???jsp.display-item.citation.isi??? ND
social impact