Wima Azis Khanafi, Yanuar Rohmat Aji Pradana, Suprayitno
Plasma cutting is an unconventional machining that is widely used in industry because of its productive efficiency. The desired cutting quality is kerf width and material removal rate (MRR). Those cutting qualities on plasma cutting are influenced by the parameters of electrical current (I), cutting speed (Cs), stand of distance (SoD), and gas pressure (P). In this research, material SS 316 was used on plasma cutting using several different parameter combinations. Taguchi robust parameter design is adopted as an optimization strategy, and fractional orthogonal array L18 is chosen as the experimental design. Signal-to-noise ratio (S/N) robustness index is adopted as the quality measure of the cutting. The optimization strategy found that I = 60A, Cs = 1500 mm/min, SoD = 2 mm, and P = 5.5 bar give the optimum in MRR with 13.60498 in S/N or improve 0.1955 compared from initial design, while I = 50A, Cs = 1500 mm/min, SoD = 3 mm, and P = 5 bar give the optimum in kerf width with −8.0701 in S/N or improve 1,46,595 compared from initial design. © 2023, The Author(s), under exclusive license to Springer Nature Singapore Pte Ltd.
Department of Mechanical Engineering, Faculty of Engineering, Universitas Negeri Malang, Malang, Indonesia