Snehasihis Pal (Avtor), Marijana Milković (Avtor), Riad Ramadani (Avtor), Janez Gotlih (Avtor), Nenad Gubeljak (Avtor), Radovan Hudak (Avtor), Igor Drstvenšek (Avtor), Matjaž Finšgar (Avtor), Tomaž Brajlih (Avtor)

Povzetek

When manufacturing complicated products where both material and design play a role, especially thin and curved components, it is difcult to maintain accurate dimensions in Selective Laser Melting. Considering these difculties, this article presents the dimensional errors in the fabrication of Ti-6Al-4V discs and their thermomechanics during manufacturing. Various combinations of laser processing parameters were used to fabricate the 2.00 mm thick discs with a diameter of 5.70 mm. It was found that the thickness shortened and the round shape changed to an oval shape for most of the discs. The thickness decreased along the build-up direction from the bottom to the top and formed a taper that increased with increasing energy density (ED). The horizontal diameter of the discs changed slightly, while the vertical diameters changed remarkably with increasing ED. On the other hand, reducing the laser power resulted in a reduction of the roundness error, while it caused a reduction of the thickness. The hatch spacing signifcantly afected the volume of the melt pool and caused a change in the vertical diameter. The central part of the curved surface of the discs became concave and the concavity increased due to the increasing ED.

Ključne besede

dimenzije;moč laserja;hitrost skeniranja;dimension;Ti-6Al-4V;lase power;scanning speed;hatch spacing;selective laser melting;

Podatki

Jezik: Angleški jezik
Leto izida:
Tipologija: 1.01 - Izvirni znanstveni članek
Organizacija: UM FS - Fakulteta za strojništvo
Založnik: Springer
UDK: 621.9
COBISS: 173501699 Povezava se bo odprla v novem oknu
ISSN: 1433-3015
Št. ogledov: 9
Št. prenosov: 0
Ocena: 0 (0 glasov)
Metapodatki: JSON JSON-RDF JSON-LD TURTLE N-TRIPLES XML RDFA MICRODATA DC-XML DC-RDF RDF

Ostali podatki

Sekundarni jezik: Slovenski jezik
Sekundarne ključne besede: dimenzije;moč laserja;hitrost skeniranja;
Vrsta dela (COBISS): Članek v reviji
Strani: str. 5655-5669
Letnik: ǂVol. ǂ129
Čas izdaje: 2023
DOI: 10.1007/s00170-023-12620-6
ID: 23290253