Authors: AHMET DURGUTLU, BEHÇET GÜLENÇ, KUTSAL TÜLBENTÇİ
Abstract: The effect of welding speed on the microstructure and penetration in MAG, SMAW and MMA welding was investigated in a low carbon steel. Experimental results revealed that the penetration decreased when the welding speed was lower or higher than the optimum speed. It was also observed that when the welding speed was high, undercuttings occurred at the edge of welding bead and microstructure of weld metals consisted of fine grains, but when the welding speed was low, at the edge of welding bead weld metal piled up and the microstructure of weld metal consisted of large grains.
Keywords: Arc Welding, Welding Speed, Low Carbon Steel
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