Utjecaj vrste struje i prijenosa metala na zonu utjecaja topline pri MIG zavarivanju aluminijske legure 5083-H321

master's thesis

• Title (english): Influence of current type and metal transfer on heat affect zone during MIG welding of aluminium alloy
• Author: Marko Krsnik
• Mentor: Ivica Garašić (mentor)
• Granter: University of Zagreb; Faculty of Mechanical Engineering and Naval Architecture; Zagreb
• Defense date and country: 2023-12-07, Croatia
• Scientific / art field, discipline and subdiscipline: TECHNICAL SCIENCES; Mechanical Engineering; Production Mechanical Engineering

Abstract

Istraživanje utjecaja vrste struje i prijenosa metala na zonu utjecaja topline tijekom procesa
MIG zavarivanja aluminijske legure EN AW-5083-H321 definira kako različiti parametri
zavarivanja utječu na karakteristike zone utjecaja topline. Ovo istraživanje ima za cilj bolje
razumjeti kako odabir vrste struje te brzina prijenosa metala utječu na mikrostrukturna svojstva
i čvrstoću zavarenog spoja od aluminijske legure. Razumijevanje ovih faktora pomaže
optimizirati proces MIG zavarivanja i osigurati kvalitetno i pouzdano zavarivanje.
Glavni zadatak eksperimentalnog rada je pronaći optimalnu metodu zavarivanja kutnog spoja
različitih debljina od aluminijske legure EN AW-5083-H321 postupcima DC MIG-P i
AC MIG-P. Potrebno je prethodno odrediti i optimalnu debljinu kutnog zavara. Prije
zavarivanja je potrebno prilagoditi odgovarajuće parametre i vrstu žice za zavarivanje uz
primjenu mehaniziranog gibanja u zaštitnoj atmosferi plina argona.

Abstract (english)

Investigation of the influence of current type and metal transfer on the heat affected zone during
the MIG welding process of aluminum alloy EN AW 5083-H321 defines how different welding
parameters affect the characteristics of the heat affected zone. This research aims to better
understand how the choice of current type and metal transfer rate affect the microstructural
properties and strength of an aluminum alloy welded joint. Understanding these factors helps
optimize the MIG welding process and ensure quality and reliable welding.
The main task of the experimental work is to find the optimal method of welding angle joints
of different thicknesses from aluminum alloy EN AW-5083-H321 using DC MIG-P and AC
MIG-P procedures. It is necessary to determine the optimal thickness of the fillet weld
beforehand. Before welding, it is necessary to adjust the appropriate parameters and type of
welding wire with the application of mechanized motion in a protective atmosphere of argon
gas.

• Keywords: Aluminijske legure; DC MIG-P; AC MIG-P; argon; zona utjecaja topline; optimalna metoda
• Keywords (english): Aluminum alloys; DC MIG-P; AC MIG-P; argon; heat affected zone; optimal method
• Language: croatian
• URN:NBN: urn:nbn:hr:235:318905
• 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: Embargoed access; Embargo expiration date: 2025-11-30
• Created on: 2023-11-30 11:59:45