Utjecaj brzine zavarivanja na deformacije pri zavarivanju raznorodnih materijala

master's thesis

• Title (english): Influence of welding velocity on distortions during welding of dissimilar materials
• Author: Marko Platužić
• Mentor: Zoran Kožuh (mentor)
• Granter: University of Zagreb; Faculty of Mechanical Engineering and Naval Architecture; Zagreb
• Defense date and country: 2017-07-20, Croatia
• Scientific / art field, discipline and subdiscipline: TECHNICAL SCIENCES; Mechanical Engineering

Abstract

U ovom diplomskom radu ispitivan je utjecaj brzine zavarivanja na deformacije prilikom zavarivanja raznorodnih čelika (konstrukcijskog čelika i nehrđajućeg čelika).

U početnom, teorijskom dijelu ovog diplomskog rada obrađena je primjena numeričkih simulacija u zavarivanju, s naglaskom na aplikaciju 'Visual-Weld', nakon čega je obrađen MIG/MAG postupak zavarivanja koji će biti korišten prilikom eksperimentalnog dijela rada. Potom je obrađena zavarljivost raznorodnih čelika i na samom kraju ovog teorijskog dijela analizirani su načini za smanjenje deformacija i zaostalih naprezanja u zavarenim konstrukcijama.

U eksperimentalnom dijelu rada zavaren je sučeljeni spoj dvaju raznorodnih čelika, kako bi se ispitao utjecaj brzine zavarivanja na deformacije, a potom je provedena i simulacija zavarivanja u programu 'Visual-Weld' kako bi se utvrdila usporedivost rezultata dobivenih simulacijom i zavarivanjem.

Abstract (english)

In this graduate thesis the task was to examine the influence of welding velocity on distortions during welding of dissimilar steels (structural steel and stainless steel).

First, theoretical part of this thesis deals with the application of numerical simulations in welding, with emphasis on the program called ‘Visual-Weld’, and after that the MIG/MAG welding process was briefly described because MAG process will be used in experimental part. Afterwards, the weldability of dissimilar steels was also described and at the end of this theoretical part, mechanisms for residual stresses and distortions reduction have been also analyzed.

In the experimental part of this thesis, the joint of dissimilar steels has been welded in order to examine the influence of welding velocity on distortion, and after that the welding simulation in 'Visual-Weld' was carried out to determine the comparability of results obtained by simulation and welding.

• Keywords: brzina zavarivanja; 'Visual-Weld'; MIG/MAG; raznorodni čelici; deformacije
• Keywords (english): welding velocity; 'Visual-Weld'; MIG/MAG; dissimilar steels; distortions
• Language: croatian
• URN:NBN: urn:nbn:hr:235:301507
• 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: 2019-05-22 19:40:53