Preprints of the National Meeting of JWS
the national meeting 2007 spring
Session ID : 110
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Torch Weaving and Feed-forward Control of Back Bead in One Side Backing less V Groove Welding by using Switch Back Welding
Satoshi Yamane*Tomoya IshikawaHikaru YamamotoToru NakashimaYasuyoshi KanekoKenji Ohshima
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CONFERENCE PROCEEDINGS FREE ACCESS

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Abstract
The authors thus employed the switch back welding method for welding V groove joints, from 2mm to 4mm root gap, without using backing plates. In the weaving frequency of 10Hz, 5Hz and 2.5Hz, the relationship between the pulsed welding current and the back bead shape are investigated. The suitability of the welding conditions for each root gap was verified by observation of the arc, molten pool and external appearance of back beads.
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© 2007 by Japan Welding Society
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