Lomna žilavost trenjem zavarenih spojeva iz AlCu4SiMg aluminijske legure

The objective of paper was to determine the fracture toughness of friction stir welding (FSW) joints of EN AW-2014 AlCu4SiMg) aluminium alloy, and to compare the fracture toughness of FSW with that of conventional metal inert gas (MIG) process. FSW of aluminium alloy was performed on a conventional...

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Veröffentlicht in:	Metalurgija 2005, Vol.44 (3), p.209
Hauptverfasser:	Kulekci, M. K, Mendi, F, Sevim, I, Basturk, O
Format:	Web Resource
Sprache:	hrv ; eng
Schlagworte:	Cilj rada je odrediti lomnu žilavost trenjem zavarenih spojeva (FSW) aluminijske legure EN A W-2014 (AlCu4SiMg) te usporediti lomnu žilavost dobivenu zavarivanjem trenjem s onom nakon konvencionalnog zavarivanja u zaštiti inertnim plinom (MIG postupak). Zavarivanje trenjem aluminijske legure provedeno je konvencionalnim poluautomatskim uređajem. Zavarivanje trenjem dobiveni su zavari bez grešaka na limovima kod stalnog kkretaja alata od 1600 o/min i kod brzine od 200 mm/min. Za ocjenu lomne žilavosti zavarenih spojeva rabljeni su rezultati ispitivanja tvrdoće Vickeras metodom i udarne energije Charpy metodom. Nizak unos topline odsutnost taljenja i dodatnog metala rezultiralo je u boljoj lomnoj žilavosti trenjem zavarenih spojeva
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Zusammenfassung:	The objective of paper was to determine the fracture toughness of friction stir welding (FSW) joints of EN AW-2014 AlCu4SiMg) aluminium alloy, and to compare the fracture toughness of FSW with that of conventional metal inert gas (MIG) process. FSW of aluminium alloy was performed on a conventional semiautomatic milling machine. Defect free FSW welds were produced on alloy plates at constant tool rotation and traverse speed of 1600 rpm and 200 mm/min, respectively. The results of Vickers hardness and Charpy impact tests were used to evaluate the fracture toughness of welded joints. Low heat input, absence of melting and filler metal resulted in better fracture toughness for FSW joints.
ISSN:	0543-5846 1334-2576