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master's thesis
Utjecaj zaštitnog plina i parametara AC MIG zavarivanja dvostrukim pulsom na geometriju zavara
Zagreb: University of Zagreb, Faculty of Mechanical Engineering and Naval Architecture, 2024. urn:nbn:hr:235:627315
Hnatek, Matija
University of Zagreb
Faculty of Mechanical Engineering and Naval Architecture

Institutional repository: Repository of Faculty of Mechanical Engineering and Naval Architecture University of Zagreb

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Hnatek, M. (2024). Utjecaj zaštitnog plina i parametara AC MIG zavarivanja dvostrukim pulsom na geometriju zavara (Master's thesis). Zagreb: University of Zagreb, Faculty of Mechanical Engineering and Naval Architecture. Retrieved from https://urn.nsk.hr/urn:nbn:hr:235:627315

Hnatek, Matija. "Utjecaj zaštitnog plina i parametara AC MIG zavarivanja dvostrukim pulsom na geometriju zavara." Master's thesis, University of Zagreb, Faculty of Mechanical Engineering and Naval Architecture, 2024. https://urn.nsk.hr/urn:nbn:hr:235:627315

Hnatek, Matija. "Utjecaj zaštitnog plina i parametara AC MIG zavarivanja dvostrukim pulsom na geometriju zavara." Master's thesis, University of Zagreb, Faculty of Mechanical Engineering and Naval Architecture, 2024. https://urn.nsk.hr/urn:nbn:hr:235:627315

Hnatek, M. (2024). 'Utjecaj zaštitnog plina i parametara AC MIG zavarivanja dvostrukim pulsom na geometriju zavara', Master's thesis, University of Zagreb, Faculty of Mechanical Engineering and Naval Architecture, accessed 29 May 2024, https://urn.nsk.hr/urn:nbn:hr:235:627315

Hnatek M. Utjecaj zaštitnog plina i parametara AC MIG zavarivanja dvostrukim pulsom na geometriju zavara [Master's thesis]. Zagreb: University of Zagreb, Faculty of Mechanical Engineering and Naval Architecture; 2024 [cited 2024 May 29] Available at: https://urn.nsk.hr/urn:nbn:hr:235:627315

M. Hnatek, "Utjecaj zaštitnog plina i parametara AC MIG zavarivanja dvostrukim pulsom na geometriju zavara", Master's thesis, University of Zagreb, Faculty of Mechanical Engineering and Naval Architecture, Zagreb, 2024. Available at: https://urn.nsk.hr/urn:nbn:hr:235:627315

Metadata
TitleUtjecaj zaštitnog plina i parametara AC MIG zavarivanja dvostrukim pulsom na geometriju zavara
Title (english)Influence of shielding gas and AC Wave pulse welding parameters on weld geometry
AuthorMatija Hnatek
MentorZoran Kožuh (mentor)
GranterUniversity of Zagreb
Faculty of Mechanical Engineering and Naval Architecture
Zagreb
Defense date and country2024-03-28, Croatia
Scientific / art field,
discipline and subdiscipline		TECHNICAL SCIENCES
Mechanical Engineering
Production Mechanical Engineering
Abstract
U teorijskom dijelu rada navedeni su postupci zavarivanja aluminija i aluminijskih legura gdje su detaljnije opisani MIG postupak zavarivanja, AC impulsni MIG i AC Wave impulsni MIG postupak. Detaljno je opisan utjecaj parametara zavarivanja na geometriju zavara a posebice utjecaj EN omjera, frekvencije i jakosti struje zavarivanja. Objašnjeni su problemi koji se javljaju prilikom zavarivanja aluminija i aluminijskih legura, te su navedeni zaštitni plinovi koji se koriste prilikom zavarivanja. U eksperimentalnom dijelu rada zavareno je šest kutnih spojeva aluminijske legure 5083 AC Wave impulsnim MIG postupkom uz varijacije Wave frekvencije i zaštitnog plina. Usporedbom postignute geometrije zavara utvrđeno je da se zavarivanjem u zaštiti 100% argona postiže veće nadvišenje metala zavara te veća dubina penetracije, dok se zavarivanjem u zaštiti argona s 50% helija postiže općenito veća površina metala zavara kao i veća površina penetracije. Također je utvrđeno da se povećanjem Wave frekvencije povećava nadvišenje, visina, širina, penetracija, površina zavara i površina penetracije metala zavara.
Abstract (english)
In the theoretical part of the thesis, the welding procedures of aluminum and aluminum alloys are listed, where the MIG welding procedure, AC pulse MIG and AC Wave pulse MIG processes are described in more detail. The influence of the welding parameters on the welding geometry are described in detail with emphasis on the EN ratio, frequency and welding current. The problems that arise when welding aluminum and aluminum alloys are explained, and the shielding gases used during welding are listed. In the experimental part of the work, six fillet welds of aluminum alloy 5083 were welded by AC Wave pulsed MIG process with variations of Wave frequency and shielding gas. By comparing the achieved weld geometry, it was determined that welding with 100% argon as a shielding gas achieves a greater reinforcement height of the weld and greater penetration depth, while welding with argon/helium shielding gas mixture generally results in greater weld area and greater penetration area. It was also found that increasing the Wave frequency increases the reinforcement height, weld width, height, penetration, weld area and area of weld penetration.
Keywords
Keywords (english)
Languagecroatian
URN:NBNurn:nbn:hr:235:627315
Study programmeTitle: Mechanical Engineering
Study programme type: university
Study level: graduate
Academic / professional title: magistar/magistra inženjer/inženjerka strojarstva (magistar/magistra inženjer/inženjerka strojarstva)
Type of resourceText
File originBorn digital
Access conditionsOpen access
Terms of useLicence In copyright icon
Created on2024-03-26 06:56:01