The Paton Welding Journal, 2002, №04

2002 №04 (01)

2002 №04 (03)

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The Paton Welding Journal, 2002, #4, 5-9 pages

Effect of an electrode metal droplet on arc voltage in gas-shielded welding

V. Ponomarev, A.V. Da Costa, A. Scotti

Federal University, Uberlandia, Brazil

Abstract
Voltage drop at an electrode metal droplet and its effect on the arc voltage value have been determined. Geometrical parameters of the droplet and length of the arc have been estimated using a machine consisting of laser and high-speed digital video camera, by synchronously registering the arc voltage and welding current curves. It has been established that the voltage drop per unit length of the droplet may exceed the voltage drop gradient in the arc column, and the arc voltage may increase with growth of the droplet and reduction of the arc voltage
Keywords: MIC MAG welding, metal transfer, droplet parameters, arc length, voltage drop at metal droplet, arc voltage

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Suggested Citation

V. Ponomarev, A.V. Da Costa, A. Scotti (2002) Effect of an electrode metal droplet on arc voltage in gas-shielded welding. The Paton Welding J., 04, 5-9.

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