Development of plasma cutting technique for C1220 copper, AA2024 aluminum alloy, and Ti-1,5Al-1,0Mn titanium alloy using a plasma torch with reverse polarity

OBRABOTKAMETALLOV Vol. 24 No. 4 2022 technology Fig. 1. Plasma cutter: a – plasma cutter appearance; b – an image of the cutting process; c – plasmatron appearance; 1 – work table; 2 – plasmatron; 3 – carriage; 4 – linear guides for transverse movement; 5 – linear guides for longitudinal movement Ta b l e 1 Plasma cutting modes Alloy S, mm Mode No. Delay of pierce, s Height of pierce, mm Cutting height, mm I, А U, V V, mm/min Ti-1.5Al-1.0Mn 5 1 0.4 6.07 2.54 130 154 2,400 Ti-1.5Al-1.0Mn 5 2 0.4 6.07 2.54 130 154 2,000 Ti-1.5Al-1.0Mn 5 3 0.4 6.07 2.54 130 154 1,600 Ti-1.5Al-1.0Mn 10 1 0.5 6.07 2.54 130 171 1,600 Ti-1.5Al-1.0Mn 10 2 0.5 6.07 2.54 130 171 1,200 Ti-1.5Al-1.0Mn 10 3 0.5 6.07 2.54 130 171 1,400 AA2024 12 1 0.4 – 3.81 300 170 4,542 AA2024 12 2 0.4 – 3.81 300 170 3,000 AA2024 12 3 0.4 – 3.81 300 170 2,000 AA2024 12 4 0.4 – 3.81 300 170 6,000 AA2024 12 5 0.4 – 3.81 300 170 8,000 AA2024 40 1 0.6 – 6.35 300 205 559 AA2024 40 2 0.4 – 6.35 300 205 559 AA2024 40 3 0.6 – 6.35 300 205 450 AA2024 40 4 0.6 – 6.35 300 205 400 AA2024 40 5 0.6 – 6.35 300 205 300 AA2024 40 6 0.6 – 4.0 300 205 300 AA2024 40 7 0.4 – 4.0 300 205 300 AA2024 40 8 0.6 – 4.0 300 205 650 AA2024 40 9 0.6 – 4.0 300 205 750 AA2024 40 10 0.6 – 4.0 300 205 800 C1220 40 1 0.5 6.35 6.35 300 205 450 C1220 40 2 2.0 6.35 4.35 300 205 450 C1220 40 3 2.0 6.35 4.35 300 205 300 C1220 40 4 4.0 6.35 4.35 300 205 250 C1220 40 5 6.0 6.35 4.35 300 205 150 C1220 40 6 6.0 4.0 4.35 300 205 150 C1220 40 7 6.0 4.0 4.35 300 205 100

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