Analiza primjene AC MIG postupka za zavarivanje tankih limova legure AlMg3

master's thesis

• Title (english): Analysis of application of AC MIG process in welding of thin AlMg3 alloy sheets
• Author: Nikolina Šeper
• Mentor: Ivica Garašić (mentor)
• Granter: University of Zagreb; Faculty of Mechanical Engineering and Naval Architecture; Zagreb
• Defense date and country: 2022-07-18, Croatia
• Scientific / art field, discipline and subdiscipline: TECHNICAL SCIENCES; Mechanical Engineering; Production Mechanical Engineering

Abstract

Tema ovog diplomskog rada je „Analiza primjene AC MIG postupka za zavarivanje tankih limova legure AlMg3“. Rad je podijeljen u dva glavna dijela, a to su teorijski te eksperimentalni.
U teorijskom dijelu prikazane su glavne karakteristike spomenutog materijala od kojih je za ovaj rad najvažnija zavarljivost. Također, opisane su glavne karakteristike MIG te AC MIG postupaka zavarivanja koji se koriste u eksperimentalnom dijelu rada.
U eksperimentalnom dijelu opisano je zavarivanje sučeljenog spoja aluminijeve legure 5086 debljine 3 mm konvencionalnim DC te modificiranim AC MIG postupkom. Zavareni spojevi su ispitani, a rezultati analizirani prema normi HRN EN ISO 15614-2. Ispitivanja koja su provedena su vizualni pregled, ispitivanje penetrantima, statičko vlačno ispitivanje, ispitivanje savijanjem te analiza makrostrukture.
Nakon razmatranja teorijskog i eksperimentalnog dijela rezultati su analizirani i na temelju njih donesen je zaključak.

Abstract (english)

The topic of this master thesis is "Analysis of application of AC MIG process in welding of thin AlMg3 alloy sheets". The paper is divided into two parts, the first part is theoretical and the second is experimental.
In the theoretical part, the main characteristics of the mentioned material are presented, of which weldability is the most important for this work. Also, the main characteristics of MIG and AC MIG welding procedures used in the experimental part of the work are described.
The experimental part describes the welding of a 3 mm thick 5086 aluminium alloy butt joint by conventional DC and modified AC MIG welding processes. Welded joints were tested, and the results were analyzed according to the HRN EN ISO 15614-2 standard. Performed tests were visual inspection, penetrant testing, transverse tensile testing, transverse bending testing and macroscopic examination.
After considering theoretical and experimental part, the test results were analyzed and conclusion was reached.

• Keywords: aluminij; zavarivanje; MIG; AC MIG; HRN EN ISO 15614-2; sučeljeni spoj
• Keywords (english): aluminium; welding; MIG; AC MIG; HRN EN ISO 15614-2; butt joint
• Language: croatian
• URN:NBN: urn:nbn:hr:235:621831
• Study programme: Title: Mechanical Engineering; Study programme type: university; Study level: graduate; Academic / professional title: magistar/magistra inženjer/inženjerka strojarstva (magistar/magistra inženjer/inženjerka strojarstva)
• Type of resource: Text
• File origin: Born digital
• Access conditions: Open access
• Created on: 2022-07-11 08:27:08