Dovajalnik prahu za proces selektivnega laserskega taljenja z manjšimi količinami prahu

Jensterle, Maj (author), Govekar, Edvard (mentor)

Proces selektivnega laserskega taljenja (SLT) kovinskega prahu je eden od najpogosteje uporabljenih procesov za izdelavo kompleksnih komponent z dodajalno tehnologijo. Industrijske izvedbe sistemov običajno ne omogočajo izvedbe SLT procesa z manjšimi količinami prahu, kar omejuje njihovo uporabo pri razvoju in tiskanju z novimi prašnimi materiali. V ta namen smo zasnovali sestav zalogovnika prahu z nanašalom in dodatni sestav prekrivne plošče in sekundarne ploščadi za sistem DMG MORI Lasertec 30 SLM, s čimer smo proces SLT omejili na manjšo delovno površino in zmanjšali zahtevano količino prahu. Zalogovnik z nanašalom smo oblikovali na osnovi poskusov. Z izvedbo procesa SLT smo tudi potrdili zmožnost njegove uporabe za izdelavo komponent z manjšo količino prahu.

• Language: Slovenian
• Keywords: dodajalne tehnologije, selektivno lasersko taljenje, zalogovnik za prah, postelja prahu, konstruiranje
• Work type: Bachelor thesis/paper
• Typology: 2.11 - Undergraduate Thesis
• Organization: FS - Faculty of Mechanical Engineering
• Year: 2025
• Number of pages: XII, 38 f., [22] f. pril.
• PID: 20.500.12556/RUL-175769
• UDC: 004.925.84:628.511.133(043.2)
• COBISS.SI-ID: 256690947
• Publication date in RUL: 07.11.2025

Secondary language

• Language: English
• Title: Powder feeder for selective laser melting process with smaller quantities of powder

Abstract

The selective laser melting (SLM) process of metal powder is among the most widely used processes for fabricating complex components using additive manufacturing. Industrial systems typically do not allow the SLM process to be done with reduced quantities of powder, which limits their use in research and utilisation of new powder materials. We have therefore developed a powder hopper system with a recoater with an additional cover plate and secondary platform assembly for the DMG MORI Lasertec 30 SLM system, which limits the SLM process to a smaller work surface and lowers the amount of powder required. The design of the powder feeder was based on experiments. By performing the SLM process, we also confirmed its ability of producing components with a smaller quantity of powder.

• Keywords: additive manufacturing, selective laser melting, powder hopper, powder bed, mechanical design