Analiza metoda ispitivanja zavarljivosti prema normi HRN EN ISO 17642

undergraduate thesis

• Title (english): Analisys of weldability test methods according standard HRN EN ISO 17642
• Author: Mislav Škrtić
• Mentor: Ivica Garašić (mentor)
• Committee member: Vesna Alar (predsjednik povjerenstva)
• Committee member: Ivan Stojanović (član povjerenstva)
• Committee member: Ivica Garašić (član povjerenstva)
• Granter: University of Zagreb; Faculty of Mechanical Engineering and Naval Architecture; Zagreb
• Defense date and country: 2020-09-24, Croatia
• Scientific / art field, discipline and subdiscipline: TECHNICAL SCIENCES; Mechanical Engineering; Production Mechanical Engineering

Abstract

U teorijskom dijelu rada dan je pregled ispitnih metoda za procjenu zavarljivosti s aspekta
pojave hladnih pukotina, definiran nizom normi HRN EN ISO 17642. Opisani su glavni uzroci
koji utječu na pojavu hladnih pukotina s posebnim naglaskom na zavarljivost čelika ultra visoke
čvrstoće.
U eksperimentalnom dijelu rada odabrana je ispitna metoda za procjenu zavarljivosti u
skladu s normom HRN EN ISO 17642. Za odabrani osnovni i dodatni materijal definirana je
priprema ispitnih komada, parametri zavarivanja i priprema ispitnih uzoraka. Provedeno je
metalografsko ispitivanje i mjerenje tvrdoće ispitnog uzorka i analizirani su dobiveni podaci
temeljem ispitivanja.

Abstract (english)

In the theoretical part of the paper, an overview of test methods for the evaluation of
weldability from the aspect of the occurance of cold cracks is given, according to series of
standards HRN EN ISO 17642. The main causes influencing the appearance of cold cracks are
described with special emphasis on the weldability of ultra high – strength steel.
In the experimental part of the paper, a test method was selected for the evaluation of
weldability in accordance with the standard HRN EN ISO 17642. For the selected parent material
and consumable material, the preparation of test plates, welding parameters and preparation of test
specimens are defined. Metallographic examination and hardness testing of the test specimen was
performed and the obtained data, based on the test, were analysed.

• Keywords: zavarljivost; norma; hladna pukotina
• Keywords (english): weldability; standard; cold crack
• Language: croatian
• URN:NBN: urn:nbn:hr:235:981379
• 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: 2020-09-23 13:23:50