Abstract
The spatter loss under different welding parameters and in different surroundings was measured and compared. The spatter loss coefficients were calculated via considering the net weight of metal from flux-cored wire. Experiments indicated that the spatters mainly congregated near the weld seam in 5 mm. The congregated spatters seriously influenced the evenness of weld seam and caused weld bead shrinkage and overlap. According to the measured values, the spatter loss coefficients significantly decreased along with the increasing welding current. It was deduced that spatter loss can be effectively improved by elevating the welding current level, in which case droplet transfer mode, droplet transfer resistance and bubble shielding could contribute.
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