Analiza utjecaja zaštitnog plina na profil penetracije kod MIG zavarivanja aluminija

undergraduate thesis

• Title (english): Analysis of shielding gas influence on penetration profile at MIG welding of aluminum.
• Author: Filip Majetić
• Mentor: Ivica Garašić (mentor)
• Granter: University of Zagreb; Faculty of Mechanical Engineering and Naval Architecture; Zagreb
• Defense date and country: 2023-03-02, Croatia
• Scientific / art field, discipline and subdiscipline: TECHNICAL SCIENCES; Mechanical Engineering; Production Mechanical Engineering

Abstract

Tema ovog rada je „Analiza utjecaja zaštitnog plina na profil penetracije kod MIG zavarivanja aluminija“
Teorijski dio rada opisuje svojstva aluminija i aluminijskih legura, njihovu primjenu i proizvodnju. Obrađene su tehnologije zavarivanja aluminija te ukratko opisan MIG postupak zavarivanja aluminija. Detaljno su opisani zaštitni plinovi korišteni kod zavarivanja aluminija – argon, helij te plinske mješavine argona i helija.
Eksperimentalni dio rada sastoji se od pripreme 3 uzorka aluminijske legure 5083 debljine 10 mm, izvođenja postupka MIG zavarivanja pulsnim lukom i istim parametrima zavarivanja te analizom dobivenih rezultata zavarivanja. Zavareni kutni spojevi podvrgnuti su vizualnoj i penetrantskoj kontroli zavara, izradi makroizbrusaka i mjerenju geometrije. Analizom rezultata ispitivanja utvrđen je utjecaj različitih plinskih mješavina na profil penetracije. Pokazana je razlika u iznosu dubine i obliku penetracije u ovisnosti o postocima argona i helija u zaštitnoj plinskoj mješavini.

Abstract (english)

The topic of this paper is "Analysis of shielding gas influence on penetration profile at MIG welding of aluminum."
The theoretical part of the thesis describes the properties of aluminum and aluminum alloys, their applications, and production. Welding technologies of aluminum are discussed, and the MIG welding process of aluminum is described. The protective gases used in aluminum welding - argon, helium, and gas mixtures of argon and helium - are described in detail.
The experimental part of the paper consists of preparing three samples of 10 mm thick aluminum alloy 5083, performing the MIG welding process with a spray arc and the same welding parameters and analyzing the obtained welding results. The welded corner joints were visually and penetrant inspected, and macro examinations were done, followed by measuring the geometry. The analysis of the results showed the influence of different shielding gas mixtures on penetration profile. The difference was shown in the depth and shape of the penetration, depending on the percentage of argon and helium in the shielding gas mixture.

• Keywords: Aluminij; MIG postupak zavarivanja; plinska mješavina argona i helija; penetracija zavara.
• Keywords (english): Aluminum; MIG welding process; argon-helium gas mixture; weld penetration.
• Language: croatian
• URN:NBN: urn:nbn:hr:235:422333
• Study programme: Title: Mechanical Engineering; Study programme type: university; Study level: undergraduate; Academic / professional title: sveučilišni/a prvostupnik/ prvostupnica (baccalaureus/baccalaurea) inženjer/inženjerka strojarstva (sveučilišni/a prvostupnik/ prvostupnica (baccalaureus/baccalaurea) inženjer/inženjerka strojarstva)
• Type of resource: Text
• File origin: Born digital
• Access conditions: Open access
• Created on: 2023-02-27 13:07:14