• Title/Summary/Keyword: 용접모니터링

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Real-Time Welding Monitoring System (실시간 용접공정 모니터링 시스템)

  • Han, Sang-Uk;Kim, Dae-Hyun;Lee, HwaMin;Park, Jun-Soo
    • Proceedings of the Korea Information Processing Society Conference
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    • 2014.04a
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    • pp.291-293
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    • 2014

  • 실시간 용접공정 모니터링 시스템은 기존 용접시스템에서 발생할 수 있는 오류를 감소시키고 관리하기 위한 시스템으로 오류 발생 시 실시간으로 담당자에게 정보를 제공하여 빠르게 오류를 수정할 수 있게 한다. 또한 오류의 범위를 유동적으로 설정하게 하여 시스템 사용자가 쉽게 사용이 가능하다.

  • https://doi.org/10.3745/PKIPS.y2014m04a.291 인용 PDF

Study on the Relationship Between Emission Signals and Weld Defect for In-Process Monitoring in CO2 Laser Welding of Zn-Coated Steel (아연코팅 강판의 CO2 레이저용접시 인프로세스 모니터링을 위한 측정신호와 용접결함과의 관련성 연구)

  • Kim, Jong-Do;Lee, Chang-Je
    • Transactions of the Korean Society of Mechanical Engineers A
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    • v.34 no.10
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    • pp.1507-1512
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    • 2010

  • In this study, the plasma induced by $CO_2$ laser lap welding of 6t Zn coated steel used for ship building was measured using photodiodes and a microphone. Then, the welding phenomenon with gap clearance of lap joint was compared with RMS-treated signal. Thus, we found that intensity of the RMS-treated signal increased with Zn vaporization; further, the presence of defects results in rapid variations with the RMS value as a function of lap-joint parameters. Besides, the FFT value of the raw signal with variations of changing welding parameters was calculated, and then the calculated FFT frequency value was set as the bandwidth of digital filter for a more accurate in-process monitoring. The RMS values were acquired by filtering the raw signal. By matching the weld beads and the calculated RMS values, we confirmed that there is a strong relationship between the signals and the defects.

  • https://doi.org/10.3795/KSME-A.2010.34.10.1507 인용 PDF KSCI