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Vol.20, No.3, 2020, pp. 281–284 |
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MODELLING OF FUSION ZONE FORMATION IN SHIELDED METAL ARC WELDING Vitaliy P. Ivanov1, Elena V. Lavrova1, Dmitry P. Il’yaschenko 2,3, Elena V. Verkhoturova4 1) Priazovskiy State Technical University, Mariupol, UKRAINE 2) Industrial Technology Department, Yurga Institute of Technology National Research Tomsk Polytechnic University, Yurga, RUSSIA 3) Institute of Strength Physics and Materials Science, Siberian Branch, Russian Academy of Sciences, Tomsk, RUSSIA email: mita8@rambler.ru 4) Irkutsk National Research Tech. University, Irkutsk, Russia
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Abstract The reported paper explores the formation of a fusion zone in shielded metal arc welding with coated electrodes (SMAW). The study investigates the importance of an electrode grade, a power supply source type, and welding parameters for the fusion zone formation. The key parameters essential for the geometry control of a fusion zone, i.e. its depth and width are identified. A computational model for the fusion zone formation in SMAW is developed to trace the evolution of a fusion zone vs. time. The estimated data are verified by the experimental results. Keywords: shielded metal arc welding (SMAW), melting front, fusion zone evolution, mathematical model, weld formation control |
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