Initial transient phase and stability of annular laser beam direct wire deposition

Kotar, Matjaž (avtor), Fujishima, Makoto (avtor), Levy, Gideon N. (avtor), Govekar, Edvard (avtor)

In this paper the stability of the annular laser beam (ALB) direct wire-deposition process, which enables process symmetry and a well-defined ALB workpiece irradiation proportion (WIP) and related energy input onto the workpiece and the wire surface is considered. Various initial process phase strategies with respect to different initial wire-end positions and WIPs were analysed based on the process visualization and outcome, and the melt pool temperature. It was shown that in addition to a precise synchronization of the mutually time-dependent ALB power, wire and workpiece feeding velocity, the fastest and the most robust transition into a stable stationary process could be achieved with the initial position of the wire-end on the workpiece surface. Additionally, the WIP was shown to have a strong and nonlinear influence on the process stability.

• Jezik: Angleški jezik
• Ključne besede: additive manufacturing, lasers, wire
• Vrsta gradiva: Članek v reviji
• Tipologija: 1.01 - Izvirni znanstveni članek
• Organizacija: FS - Fakulteta za strojništvo
• Status publikacije: Objavljeno
• Različica publikacije: Recenzirani rokopis
• Leto izida: 2019
• Št. strani: Str. 233-236
• Številčenje: Vol. 68, iss. 1
• PID: 20.500.12556/RUL-108519
• UDK: 621.791(045)
• ISSN pri članku: 0007-8506
• DOI: 10.1016/j.cirp.2019.04.118
• COBISS.SI-ID: 16601883
• Datum objave v RUL: 05.07.2019

Gradivo je del revije

• Naslov: CIRP annals
• Skrajšan naslov: CIRP ann.
• Založnik: Technische Rundschau, Hallwag Verlag, Colibri, Elsevier
• ISSN: 0007-8506
• COBISS.SI-ID: 170267

Sekundarni jezik

• Jezik: Slovenski jezik
• Ključne besede: dodajne tehnologije, laserji, žice

Projekti

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