Japanese Journal of Applied Physics · 2002 · 34 citations · 1 references
EngineeringElectrical EngineeringMetallurgyPlasma PhysicsPower ElectronicsArc WeldingHigh-frequency Power ConversionWeldingWelding ProcessesArc StabilityBead FormWelding Power Sources
A new power source, able to generate high-frequency, up to 20 kHz, and high-peak pulse current, up to 500 A, has been developed. By using the new power source, arc pressure and bead depth 3 times as high and twice as deep as those obtained from the DC power source were obtained. The new power source achieved a stable arc in a narrow groove with high aspect ratio due to high constriction. Welding speeds using the new power source are twice as fast as the DC arc.
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