Annular laser beam based direct metal deposition

Govekar, Edvard (avtor), Jeromen, Andrej (avtor), Kuznetsov, Alexander (avtor), Kotar, Matjaž (avtor), Kondo, Masaki (avtor)

The paper provides a description of a direct annular laser beam based metal deposition head, which makes use of axial material feeding and variation of the laser beam intensity distribution (LBID) on the surface of the workpiece. The application and advantages of the developed head are presented by processes of direct metal droplet, metal wire and powder deposition. Due to the achieved process symmetry, the stability and robustness of the processes are increased. This is the most clearly seen in the case of metal droplet deposition, which is an inherently unstable process. In the case of wire deposition, a precise pre-set of the proportion of energy input into the workpiece surface is enabled, which has been shown to be an important parameter affecting the stability and process outcome. In the case of laser powder deposition, the benefits of the developed head are reflected in achieved powder catchment efficiency greater than 80 % and in the head's ability to influence the deposited layer properties by adjusting the LBID.

• Jezik: Angleški jezik
• Ključne besede: annular laser beam, direct metal deposition, process stability
• Vrsta gradiva: Članek v reviji
• Tipologija: 1.06 - Objavljeni znanstveni prispevek na konferenci (vabljeno predavanje)
• Organizacija: FS - Fakulteta za strojništvo
• Status publikacije: Objavljeno
• Različica publikacije: Objavljena publikacija
• Leto izida: 2018
• Št. strani: f. 222-227
• Številčenje: Vol. 74
• PID: 20.500.12556/RUL-105770
• UDK: 621.9.04(045)
• ISSN pri članku: 2212-8271
• DOI: 10.1016/j.procir.2018.08.099
• COBISS.SI-ID: 16216859
• Datum objave v RUL: 13.12.2018

Gradivo je del zbornika

• Naslov: 10th CIRP Conference on Photonic Technologies (LANE 2018), September 03 - 06, 2018 Fürth, Germany
• COBISS.SI-ID: 16261147

Gradivo je del revije

• Naslov: Procedia CIRP
• Založnik: Elsevier
• ISSN: 2212-8271
• COBISS.SI-ID: 12981019

Sekundarni jezik

• Jezik: Slovenski jezik
• Ključne besede: obročni laserski žarek, direktno nanašanje kovin, stabilnost procesa

Projekti

• Financer: ARRS - Agencija za raziskovalno dejavnost Republike Slovenije
• Številka projekta: P2-0241
• Naslov: Sinergetika kompleksnih sistemov in procesov