Aleksija Đurić (Avtor), Dragan Milčić (Avtor), Zijah Burzić (Avtor), Damjan Klobčar (Avtor), Miodrag Milčić (Avtor), Biljana Marković (Avtor), Vladislav Krstić (Avtor)

Povzetek

The modern concept of lightweight design (LW) requires the application of different materials in one structure (multi-material structures). The structure of different materials has a good perspective for application in the automotive and aerospace industries but only if it is possible to achieve a quality joint between different materials. The most used technology for joining different materials in the automotive industry is Resistance spot welding (RSW). Due to different mechanical, physical, and chemical properties, the joining of different materials by RSW technology does not provide a quality joint, and accordingly, alternative technologies for joining different materials have emerged. Resistance element welding (REW) was developed to enable joint of different materials. This paper presents the welding of AW 5754 H22 Al alloy (1.0 mm-thick) and DP500 steel (1.5 mm-thick) using novel REW. The peak load, absorption energy, microstructure, microhardness and fatigue strength of the REW joint has been investigated. The joint of the same materials has been done also using conventional RSW to compare some results. The results that will be presented in this paper show that that REW can achieve reliable joining of the two materials at relatively low welding currents compared to RSW. Using REW process with a significantly lower welding current, satisfactory mechanical characteristics of the weld joint can be achieved, so peak load is between 2300–2500 N, displacement is between 2.5–3 mm and the absorption energy is between 3.3–5.7 J. REW joints showed fatigue strength with the fatigue limit of 882 N

Ključne besede

uporovno točkovno varjenje;mikrostruktura;mikrotrdota;spoji;resistance spot welding;resistance element welding;dissimilar materials joints;microstructure;microhardness;fatigue strength;

Podatki

Jezik: Angleški jezik
Leto izida:
Tipologija: 1.01 - Izvirni znanstveni članek
Organizacija: UL FS - Fakulteta za strojništvo
UDK: 621.791
COBISS: 112978691 Povezava se bo odprla v novem oknu
ISSN: 2073-4352
Št. ogledov: 57
Št. prenosov: 22
Ocena: 0 (0 glasov)
Metapodatki: JSON JSON-RDF JSON-LD TURTLE N-TRIPLES XML RDFA MICRODATA DC-XML DC-RDF RDF

Ostali podatki

Sekundarni jezik: Slovenski jezik
Sekundarne ključne besede: uporovno točkovno varjenje;mikrostruktura;mikrotrdota;spoji;
Vrsta dela (COBISS): Članek v reviji
Strani: str. 1-15
Letnik: ǂVol. ǂ12
Zvezek: ǂiss. ǂ2
Čas izdaje: Feb. 2022
DOI: 10.3390/cryst12020258
ID: 15766521