대한용접접합학회:학술대회논문집 (Proceedings of the KWS Conference)
- 대한용접접합학회 2009년 추계학술발표대회
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- Pages.226-234
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- 2009
Bead Formation and Wire Temperature Distribution during Ultra-high-speed GTA Welding Using Pulse-heated Hot-wire
- Shinozaki, K. (Graduate School of Engineering, Hiroshima University) ;
- Yamamoto, M. (Graduate School of Engineering, Hiroshima University) ;
- Mitsuhata, Koichi (Babcock-Hitachi K.K) ;
- Nagashima, Toshiharu (Bab-Hitachi Industrial Co.) ;
- Kanazawa, T. (Bab-Hitachi Industrial Co.) ;
- Arashin, H. (Bab-Hitachi Industrial Co.)
- 발행 : 2009.11.26
초록
The purpose of this study was to investigate the melting phenomenon of filler wire in detail and to obtain the precise temperature distribution of filler wire during GTA welding under the ultra-high welding speed condition in order to develop the ultra-high-speed GTA welding process with the pulse-heated hot-wire system by using three kinds of materials. The melting phenomenon of filler wire was observed using a high-speed camera and the temperature distribution of filler wire was measured using a radiation thermometer. From the above result, the adequate welding conditions of each material to make the GTA welding process with the ultra-high welding speed could be obtained. The ultra-high-speed GTA welding process needed the adequate wire current in order to obtain the adequate temperature distribution and the adequate melting position of filler wire. Moreover, the temperature distributions of three kinds of filler wire could be estimated by using the proposed simple estimation method.