Utjecaj parametara zavarivanja na nepravilnosti pri MIG zavarivanju aluminija izmjeničnom strujom

undergraduate thesis

• Title (english): Influence of welding parameters on defects at alternating current MIG welding of aluminium
• Author: Mia Sikora
• 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

Abstract

U teorijskom dijelu rada navedeno je označavanje aluminijevih legura s obzirom na elemente kojima su legirane. Detaljno je opisan AC MIG postupak zavaravanja te njegove prednosti. Detaljno je opisana i problematika odabira parametara pri AC MIG zavarivanju aluminijevih legura. Prikazane su i opisane najčešće nepravilnosti koje se pojavljuju tijekom postupka zavarivanja. Također je objašnjen način specificiranja nepravilnosti prema normi ISO 10042.
U eksperimentalnom dijelu provedeno je AC MIG zavarivanje sučeljenih i kutnih spojeva pri različitim parametrima na aluminijevim legurama. Nakon zavarivanja provedena je makroanaliza uzoraka te je analizirana pojavnost nepravilnosti u ovisnosti o različitim parametrima. Na temelju rezultata analize, uzorcima su dodijeljene razine kvalitete prema normi ISO 10042. Na kraju je određeno rizično područje parametara za sučeljeni i kutni spoj kod MIG zavarivanja izmjeničnom strujom.

Abstract (english)

The teoretical part of this thesis covers the designation of aluminium alloys according to their alloying elements. The AC MIG welding process and its advantages are described in detail. The issue of parameter selection during AC MIG welding of aluminium alloys is also described in detail. The most common irregularities that appear during the welding process are shown and described The method of specifying irregularities according to the ISO 10042 standard is also explained.
In the experimental part, AC MIG welding of butt and corner joints was performed at different parameters on aluminium alloys. After welding, a macroanalysis of the samples was carried out and the incidence of irregularities was analyzed depending on different parameters. Based on the result of the analysis, the samples were assigned quality levels according to the ISO 10042 standard. Finally, the risk area of the parameters for the butt and corner joints in MIG welding with alternating current was determined.

• Keywords: AC MIG; nepravilnosti; aluminijeve legure; ISO 10042
• Keywords (english): AC MIG; irregularities; aluminium alloys; ISO 10042
• Language: croatian
• URN:NBN: urn:nbn:hr:235:353698
• 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: 2023-02-22 17:49:23