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2017•QUARTERLY JOURNAL OF THE JAPAN WELDING SOCIETYOpen access

Diagnostic of Heat Source Characteristics in Gas Metal Arc Welding Using CO2 Shielding Gas

Titinan Methong, Masaya SHIGETA, Manabu Tanaka, Rinsei Ikeda, Muneo Matsushita, 時彦 片岡

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Abstract

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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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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Available abstract

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.

Key concepts: Gas metal arc welding, Shielding gas, Arc (geometry), Plasma arc welding, Welding, Plasma, Materials science, Electric arc

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