Preprints of the National Meeting of JWS
the national meeting 2007 autumn
Session ID : 121
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Host: Japan Welding Society

Suppression of Porosity Formation in Both Side Fillet Laser Welding
*GORO ARAKANE, Susumu Tsukamoto
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Keywords: CO2Laser, Both Side Fillet Welding, Porosity, Power Modulation, Thick plate
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Abstract
Suppression of the porosity has been attempted by laser power modulation in both side fillet laser welding. Dynamic keyhole behaviour and porosity formation process were observed by micro focus x-ray transmission imaging system to understand the formation and suppression mechanism of the porosity.
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© 2007 by Japan Welding Society
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