210302 レーザウィービングを目的としたTIGアーク/YAGレーザハイブリッド溶接法の開発(OS15 生産加工3,オーガナイズド・セッション)

概要

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TIG welding process is often used to join thin metal plates because of the stability of arc compared with the other arc welding processes. However, the temperature of the tungsten electrode of the TIG welding torch increases and oxidation occurs during welding process. Therefore, the electrode tip is consumed considerably, and the arc stability tends to decrease with welding time. Accordingly, it is important to administrate the electrode tip condition in order to keep the welding process stable. On the contrary, the laser beam has extraordinary stability and directivity because of the nature of the light beam. Therefore, stabilization and control of the unstable TIG arc by the laser beam has been tried. In this study, the control of the arc behavior in welding of thin metal plates using the hybrid welding process combining TIG arc and YAG laser with relatively low power.
2011-03-17