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W artykule przedstawiono wyniki badań przełomów próbki spawanej łukowo metodą MIG stopu AW-7020. Przełom uzyskano w wyniku poddania próbki odkształcaniu z małą prędkością (Slow Strain Rate Testing - SSRT) zgodnie z PN-EN ISO 7539-7:2005. Podano parametry spawania metodą MIG zastosowane do połączenia blach wykonanych z badanego stopu. Przełomy próbek spawanych metodą MIG, po badaniach SSRT, poddano...
Technology development of Friction Stir Welding (FSW) method for joining AW-7020 aluminum alloy elements was described. Two kinds of tools were used during research: with a regular pin and with a „TRI-FLUTE” pin. Tools were with different dimensions and the following parameters changed mandrel’s rotary speed Vn [rev/min], welding speed Vz [mm/min], angle of tool deflection αz [o]. The thickness of...
The article presents the research results on the mechanical properties of aluminum alloy 7020 and its friction stir welded (FSW) joints. For comparison alloy 5083 – the most currently used in shipbuilding alloy was chosen as well as 5059 - the new high-strength alloy. Besides the native material alloys there were investigated their joints welded by FSW - the same method as alloy 7020. Welding parameters...
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