magistrsko delo magistrskega študijskega programa II. stopnje Strojništvo
Sani Veljanovski (Author), Damjan Klobčar (Mentor)

Abstract

Cilj dela je bil določiti vpliv procesnih parametrov pri oblikovnem obločnem navarjanju (WAAM) na zaostale napetosti. Z žico iz konstrukcijskega jekla G3Si1 premera 1,2 mm smo navarjali preproste geometrije na osnovni material. Teoretični del zajema opis procesa izdelave WAAM ter mehanizmov nastanka in merjenja zaostalih napetosti. Predstavljen je plan načrtovanja eksperimentov za izdelavo vzorcev s postopkom WAAM ter plan merjenja napetosti z metodo XRD. Rezultate smo analizirali glede na procesne parametre izdelave: jakost varilnega toka, medvarkovno temperaturo in strategijo izdelave. Jakost varilnega toka ima največji vpliv na zaostale napetosti. Strategija navarjanja ima velik vpliv na obliko navarka, saj se lahko zgodi, da nam z napačno strategijo navarjanja ne bo uspeli izdelati izdelka. Najmanjši vpliv na zaostale napetosti ima medvarkovna temperatura. Glede na rezultate eksperimentov priporočamo izmenično strategijo navarjanja s čim manjšim vnosom energije.

Keywords

magistrske naloge;oblikovno obločno navarjanje (WAAM);dodajalne tehnologije;navarjanje;zaostale napetosti;rentgenska odbojna metoda;

Data

Language: Slovenian
Year of publishing:
Typology: 2.09 - Master's Thesis
Organization: UL FS - Faculty of Mechanical Engineering
Publisher: [S. Veljanovski]
UDC: 621.791.75:669.14:620.1(043.2)
COBISS: 28819203 Link will open in a new window
Views: 394
Downloads: 97
Average score: 0 (0 votes)
Metadata: JSON JSON-RDF JSON-LD TURTLE N-TRIPLES XML RDFA MICRODATA DC-XML DC-RDF RDF

Other data

Secondary language: English
Secondary title: Residual stress in WAAM welding of G3Si1 structural steel
Secondary abstract: Master thesis focuses on influence of process parameters in the WAAM manufacturing on residual stress. We welded simple geometry to the base material % structural steel. Samples were manufactured by a MAG welding process using G3Si1 welding wire of 1.2 mm diameter. The theoretical part includes a description of the WAAM manufacturing process and measurement of residual stress. A plan of experiment for production of samples using WAAM and measuring residual stress using X-ray diffraction is presented. The results were analyzed on terms of process parameters: welding current, manufacturing strategy and welding temperature. Welding current has the highest influence on residual stress. The manufacturing strategy has a great influence on the shape of the weld. It can happen that with wrong strategy we will not be able to make a desired product. The smallest effect on residual stress has welding temperature. Based on experiments we recommend alternating strategy with lowest possible welding current.
Secondary keywords: master thesis;Wire + Arc Additive Manufacturing (WAAM);additive manufacturing;welding;residual stress;X-Ray diffraction;
Type (COBISS): Master's thesis/paper
Study programme: 0
Embargo end date (OpenAIRE): 1970-01-01
Thesis comment: Univ. Ljubljana, Fak. za strojništvo
Pages: XXII, 56 str., [2] f. pril.
ID: 12003902
Recommended works:
, magistrsko delo magistrskega študijskega programa II. stopnje Strojništvo
, zaključna naloga Projektno aplikativnega programa I. stopnje Strojništvo
, magistrsko delo magistrskega študijskega programa II. stopnje Strojništvo
, magistrsko delo magistrskega študijskega programa II. stopnje Strojništvo
, magistrsko delo magistrskega študijskega programa II. stopnje Strojništvo