Investigation of changes in geometrical parameters of GMAW surfaced specimens under the influence of longitudinal magnetic field on electric arc

OBRABOTKAMETALLOV TECHNOLOGY Vol. 26 No. 1 2024 Ta b l e 2 Results of measuring the greatest width and height of the surfaced specimens Specimen 1 2 3 4 5 6 without exposure to a magnetic fi eld exposed to a longitudinal magnetic fi eld bmax, mm Section 1 4.7 4.2 3.7 4.3 5.1 4.5 Section 2 4.3 3.8 3.7 4.7 4.4 4.5 Section 3 4.2 4.1 3.9 4.4 4.3 4.5 hmax, mm Section 1 9.0 8.7 9.3 8.1 8.4 7.6 Section 2 8.8 8.3 9.3 8.1 8.4 8.2 Section 3 9.2 9.1 9.6 7.9 8.6 7.6 The results of calculating the t-test for independent samples based on the results of measuring the overall dimensions of the surfaced specimens (see Table 2) are presented in fi g. 6. а b c Fig. 6. Results of the analysis of the infl uence of the longitudinal magnetic fi eld on the change of the overall dimensions of the surfaced specimens: a – table of t-criterion calculation results; b – box plot for the width of the specimens; c – box plot for the specimens’ height

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