HYBRID WELDING OF Aluminium 1561 AND 5083 ALLOYS USING Plasma-arc AND CONSUMABLE ELECTRODE ARC (PLASMA-MIG)

In the article it is shown that to improve mechanical properties and decrease indices of stress-strain state of welded
joints of alloyed aluminium 1561 and 5083 alloys it is rational to apply hybrid plasma-arc welding using arc of the consumable
electrode, which as compared to traditional welding using arc of the consumable electrode allows reducing the
electrode wire consumption by 10−30 %, input energy — up to 25 %, residual deformations — by 2−3 times, residual
stresses — by about 20 % according to the absolute values, as well as reducing burnout of such alloying element as Mg
by 15−20 %.