OBRABOTKAMETALLOV TECHNOLOGY Vol. 26 No. 1 2024 Ta b l e 3 Results of measuring the deviation from straightness of the side walls of the specimens in the vertical direction for a given section Specimen Section EFL1, mm EFL2, mm EFL, mm without the infl uence of a longitudinal magnetic fi eld 1 1 0.24 0.19 0.24 2 0.38 0.22 0.38 3 0.48 0.41 0.48 2 1 0.25 0.77 0.77 2 0.13 0.17 0.17 3 0.25 0.58 0.58 3 1 0.18 0.14 0.18 2 0.68 0.17 0.68 3 0.2 0.29 0.29 under the infl uence of a longitudinal magnetic fi eld 4 1 0.24 0.31 0.31 2 0.24 0.3 0.3 3 0.08 0.44 0.44 5 1 0.28 0.53 0.53 2 0.64 0.55 0.64 3 0.77 0.15 0.77 6 1 0.47 0.21 0.47 2 0.34 0.48 0.48 3 0.45 0.65 0.65 a b Fig. 8. Results of the analysis of the infl uence of the longitudinal magnetic fi eld on the change of deviation from straightness of the side walls of the surfaced specimens in the vertical direction: a – table of t-criterion calculation results; b – box plot of deviations from straightness
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