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In this study, the heat source characteristics of arc plasma in GMAW using 100% CO2 shielding gas. In particular, arc temperature, Fe vapor concentration and electrical conductivity and metal droplet temperature of a YGW11 wire electrode were measured by optical emission spectroscopic methods. The plasma temperature reached over 8000 K at the center of the arc plasma. The droplet temperature near the arc root was higher than other areas.
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Methong et al. (2017) studied this question.
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