20.500.12556/RUL-172147 Različni režimi laserskih obdelav s kontinuirnim vlakenskim laserjem Different laser processing regimes with continuous fiber laser Laserska obdelava se v sodobni industriji uveljavlja kot ključna tehnologija zaradi visoke natančnosti, ponovljivosti in možnosti avtomatizacije. Vlakenski laserji se zaradi svoje robustnosti in prilagodljivosti vse pogosteje uporabljajo, zlasti v daljinskem laserskem procesiranju. V raziskavi je bil uporabljen robotsko voden sistem z vlakenskim laserjem moči 400 W in skenirno glavo hitrosti pomika 30 m/s. Analiziran je bil vpliv laserske moči in hitrosti pomika na obliko ter mikrostrukturo obdelanih površin, s poudarkom na prehodih med režimi čiščenja, pretaljevanja, označevanja, odparevanja in z njimi povezanim graviranjem. Rezultati so pokazali, da je mogoče s prilagoditvijo procesnih parametrov hitro prehajati med različnimi režimi obdelave brez potrebe po menjavi opreme. Ugotovljeno je bilo, da na odziv materialov pomembno vplivajo njihove fizikalne lastnosti, pri čemer sta se kot najpomembnejša dejavnika izkazali reflektivnost in toplotna prevodnost, kar je bilo še posebej izrazito pri bakru. Večkratni prehodi pri višjih hitrostih so omogočili rezultate, primerljive z enkratnimi pri nižjih hitrostih. Laser processing is increasingly being established as a key technology in modern industry due to its high precision, repeatability, and potential for automation. Fiber lasers, because of their robustness and flexibility, are being used more frequently, particularly in remote laser processing. In this study, a robot-controlled system with a 400 W fiber laser and a scanning head with a feed rate of 30 m/s was employed. The influence of laser power and feed rate on the shape and microstructure of the processed surfaces was analyzed, with particular emphasis on the transitions between the regimes of cleaning, remelting, marking, evaporation, and the associated engraving. The results showed that by adjusting the process parameters, it is possible to quickly switch between different processing regimes without the need to change equipment. It was found that the material response is strongly influenced by its physical properties, with reflectivity and thermal conductivity identified as the most significant factors, which was especially pronounced in the case of copper. Multiple passes at higher feed rates yielded results comparable to single passes at lower feed rates. laserske obdelave vlakenski laserji sistem za lasersko daljinsko procesiranje nerjavno jeklo aluminij titan baker laser processing fiber lasers remote laser processing stainless steel aluminium titanium copper true false false Slovenski jezik Angleški jezik Diplomsko delo/naloga 2025-09-06 08:31:27 2025-09-06 08:31:29 2025-10-07 03:53:56 0000-00-00 00:00:00 2025 0 0 XII, 48 f. 2025 0000-00-00 NiDoloceno NiDoloceno NiDoloceno 0000-00-00 0000-00-00 0000-00-00 621.375.826:621.9.048.7(043.2) 275636 249152259 43398.pdf 43398.pdf 1 2CAB867CBBE19810C3E8281B792CE524 3ac2a832c0539e0a9bae5c174c959112c348de56bdca19688b3155f654ba6b6e fa21f055-8aea-11f0-9328-0050569b8976 https://repozitorij.uni-lj.si/Dokument.php?lang=slv&id=215947 Fakulteta za strojništvo 0 0 0