Interpretacija zahtjeva HRN EN ISO 25239 norme za procjenu kvalitete spojeva načinjenih FSW postupkom

master's thesis

• Title (english): Interpretation HRN EN ISO standard requirements for quality assessment of welds made by FSW process
• Author: Lovre Krpeta
• Mentor: Ivica Garašić (mentor)
• Granter: University of Zagreb; Faculty of Mechanical Engineering and Naval Architecture; Zagreb
• Defense date and country: 2022-12-15, Croatia
• Scientific / art field, discipline and subdiscipline: TECHNICAL SCIENCES; Mechanical Engineering; Production Mechanical Engineering

Abstract

U ovom su radu obrađeni zahtjevi norme HRN EN ISO 25239 za procjenu kvalitete spojeva
načinjenih postupkom zavarivanja trenjem uz miješanje. Rad se sastoji od teorijskog i
eksperimentalnog dijela.
U teorijskom dijelu rada ukratko su opisani pojmovi poput povijesti, parametara, prednosti,
nedostataka i primjene postupka zavarivanja trenjem uz miješanje (eng. Friction stir welding
(FSW)). Opisan je princip rada te detaljno obrađena geometrija radnog alata. Također,
navedena su i opisana ograničenja postupka kod zavarivanja aluminija.
U eksperimentalnom dijelu ispitivan je uzorak načinjen od aluminijeve legure AlSi12
postupkom zavarivanja trenjem uz miješanje. Odrađena su ispitivanja prema zahtjevima norme
HRN EN ISO 25239, kako bi se ocijenila kvaliteta zavarenog spoja. Dobiveni rezultati su
analizirani te je ocijenjena primjenjivost postupka pri zavarivanju aluminijevih legura.

Abstract (english)

In this paper, the requirements of the HRN EN ISO 25239 standard for assessing the quality of
joints made by the friction stir welding process are discussed. The paper consists of a theoretical
and an experimental part.
In the theoretical part of the work, terms such as history, parameters, advantages, disadvantages
and applications of friction stir welding (FSW) are briefly described. The working principle is
described and the geometry of the working tool is detailed. Limitations of the aluminum
welding procedure are also listed and described. At the end of the theoretical part, each norm
was interpreted separately.
In the experimental part, a sample made of aluminum alloy AlSi12 was tested using friction stir
welding. Tests were performed according to the requirements of HRN EN ISO 25239, in order
to evaluate the quality of the welded joint. The obtained results were analyzed and the
applicability of the procedure for welding aluminum alloys was assessed.

• Keywords: FSW postupak zavarivanja; aluminij; norma HRN EN ISO 25239; geometrija alata
• Keywords (english): FSW welding process; aluminum; standard HRN EN ISO 25239; tool geometry
• Language: croatian
• URN:NBN: urn:nbn:hr:235:356799
• 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: 2022-11-30 18:14:33