• 제목/요약/키워드: Hallow shaft

검색결과 3건 처리시간 0.018초

중공축 모터를 이용한 회전아크에 관한 연구 (A Study on Rotating Arc Using Hollow Shaft Motor)

  • 김철희;나석주
    • Journal of Welding and Joining
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    • 제18권5호
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    • pp.49-54
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    • 2000
  • High speed rotating arc process, forming a flat bead surface with shallow penetration depth, can be applied to the automatic seam tracking, because the amplitude of current waveform increases at high rotation speed. Two high speed arc rotation mechanisms have been developed in Japan and Germany b rotating the electrode nozzle using an external motor, which are used prevalently for narrow gap and conventional seam welding. In this study, a new rotation mechanism was developed by using a hallow shaft motor designed to be installed in the electrode nozzle. By rotating the welding arc, the amplitude of current waveform increases remarkably since the self-regulation of arc is not fully performed. Experiments show that the arc sensor with high-speed rotation arc has improved its responsiveness and sensitivity.

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