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High Temperature Material Processes (An International Quarterly of High-Technology Plasma Processes)

An International Journal

ISSN for PRINT: 1093-3611

Institutional price:	$604.00
Issues per year:	4

Best Paper Award Selection - Editorial Board Site

2006, Volume10

154 pages

DOI: 10.1615/HighTempMatProc.v10.i4

Issue price - $155.00

THEORETICAL CONSIDERATION OF AN OSCILLATING ARC PRESSURE DISTRIBUTION

T. Yamamoto
Department of Machine Intelligence and System Engineering, Akita Prefectural University, 84-4 Ebinokuchi Tsuchiya, Yuri-Honjo, Akita, 015-0055, Japan

I. Kuno
Department of Machine Intelligence and System Engineering, Akita Prefectural University, 84-4 Ebinokuchi Tsuchiya, Yuri-Honjo, Akita, 015-0055, Japan

Koichi Takeda
Department of Machine Intelligence and System Engineering, Akita Prefectural University, 84-4 Ebinokuchi Tsuchiya, Yuri-Honjo, Akita, 015-0055, Japan

Takehiko Toh
Environment & Process Development Center, Nippon Steel Corp., 20-1, Shintomi, Futtu, Chiba, 293-8511, Japan

Jim Tanaka
Environment & Process Development Center, Nippon Steel Corp., 20-1, Shintomi, Futtu, Chiba, 293-8511, Japan

Ken-ichi Yamamoto
Environment & Process Development Center, Nippon Steel Corp., 20-1, Shintomi, Futtu, Chiba, 293-8511, Japan

Sunao Takeuchi
Environment & Process Development Center, Nippon Steel Corp., 20-1, Shintomi, Futtu, Chiba, 293-8511, Japan

ABSTRACT

Transferred arcs are widely used to melt metal. High pressure of the arc root at the metal surface often causes the blowing off the metal from the molten pool. This study theoretically assesses the pressure distribution on the anode surface when the arc is scanned using an external alternating magnetic field. By imposing a magnetic field, the time-averaged pressure of the arc on the anode decreases with increased magnetic flux density. In a magnetic field with a triangular waveform, the pressure distribution is not constant along the oscillating motion. Variation of the time-averaged pressure decreases with increased distance from the center.