Vpliv laserskega graviranja titanove zlitine Ti-6Al-4V

Lekše, Vid (author), Klobčar, Damjan (mentor)

V sklopu zaključne naloge smo raziskovali vpliv procesnih parametrov pri laserskem graviranju titanove zlitine Ti-6Al-4V. Raziskovali smo vpliv hitrosti graviranja, frekvence in električnega toka laserskega vira. Najprej smo v programski opremi definirali geometrijo površine vzorca in geometrijo osmih vzporednih linij, ki smo jih gravirali. V naslednjem koraku smo definirali procesne parametre laserskega graviranja. Vsakemu izmed treh vzorcev smo spreminjali samo določen parameter, ostali pa so bili konstantni. Po izvedenem laserskem graviranju smo vzorce opazovali z digitalnim optičnim mikroskopom in raziskovali vpliv laserskega graviranja na spremembe na površini gravure. Ugotovili smo, da procesni parametri močno vplivajo na videz in geometrijo graviranega vzorca na titanovi zlitini. S povečevanjem hitrosti graviranja se povečuje razdalja med kraterji, ki jih ustvari laserski žarek. Ugotovili smo tudi, da se s povečevanjem frekvence pulzov zmanjšuje razdalja med kraterji, kot tudi njihov premer in hrapavost površine. Pri povečevanju procesnega parametra električnega toka se je premer kraterjev povečeval, razdalja med njimi pa zmanjševala.

• Language: Slovenian
• Keywords: lasersko graviranje, optična mikroskopija, Ti-6Al-4V, Nd:YAG, procesni parametri
• Work type: Final paper
• Typology: 2.11 - Undergraduate Thesis
• Organization: FS - Faculty of Mechanical Engineering
• Place of publishing: Ljubljana
• Publisher: [V. Lekše]
• Year: 2021
• Number of pages: XIV, 33 str.
• PID: 20.500.12556/RUL-130456
• UDC: 621.9.048.7:669.295(043.2)
• COBISS.SI-ID: 83067139
• Publication date in RUL: 15.09.2021

LEKŠE, Vid, 2021, Vpliv laserskega graviranja titanove zlitine Ti-6Al-4V [online]. Bachelor’s thesis. Ljubljana : V. Lekše. [Accessed 16 March 2025]. Retrieved from: https://repozitorij.uni-lj.si/IzpisGradiva.php?lang=eng&id=130456

Secondary language

• Language: English
• Title: Influence of laser engraving of titanium alloy Ti-6Al-4V

Abstract

As part of the final bachelor thesis, we investigated the influence of process parameters in laser engraving of titanium alloy Ti-6Al-4V. We investigated the influence of engraving speed, frequency and electric current of the laser source. With the help of applicable software we first defined the surface geometry of the sample and the geometry of the eight parallel lines. Next, process parameters of laser engraving were defined. We only changed a certain parameter for each of the three samples, and the others were constant. After the laser engraving was carried out, the samples were observed with a digital optical microscope and the influence of laser engraving on the changes on the engraving surface was investigated. We found that the process parameters strongly influence the appearance and geometry of the engraved pattern on the titanium alloy. As the engraving speed increased, the distance between the craters created by the laser beam increased too. We also found that as the pulse frequency increases, the distance between the craters decreases, as does their diameter and surface roughness. As the process parameter of the electric current increased, the diameter of the craters increased and the distance between them decreased.

• Keywords: laser engraving, optical microscopy, Ti-6Al-4V, Nd:YAG, process parameters