OBRABOTKAMETALLOV MATERIAL SCIENCE Vol. 25 No. 4 2023 microscope and an Olympus LEXT 4100 laser scanning microscope. Microhardness was determined from the cut surface into the depth of the specimens on metallographic sections using a Duramin-500 hardness tester. Results and discussions Plasma cutting of specimens of aluminum and titanium alloys leads to the formation of a specific relief on the surface, outlining the flow of molten metal displaced by the gas flow from the cutting cavity [18]. c d a b e f Fig. 1. Plasma cutting of experimental specimens: plasma cutting flow diagram (a); general view of developed setup for plasma cutting (b); general view of the cut surface of aluminum alloy AA2124 (c); general view of the cut surface of Grade2 titanium alloy (d); image of the cutting process of aluminum alloy AA2024 (e);image of the cutting process of Grade2 titanium alloy (f): 1 – blank; 2 – plasma jet; 3 – watercooled electrode; 4 – plasma-supporting gas; 5 – shielding gas; 6 – material displaced from the cutting zone; 7 – heat affected zone; 8 – surface melting zone
RkJQdWJsaXNoZXIy MTk0ODM1