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- W2012554916 abstract "본 논문에서는 알루미늄 레이저 용접에서 발생하는 플라즈마의 빛을 계측하여 용접공정을 모니터링할 수 있는 시스템을 개발하였다. 분광분석을 통해 용접 시 플라즈마의 파장대를 계측하고 이를 근거로 하여 모니터링 시스템에 적합한 포토다이오드를 선정하였다. 이를 다양한 용접 조건에 대하여 적용하였고, 센서 신호의 특성은 플라즈마의 강도와 안정성에 밀접하게 연관되어 있음을 신호의 평균값과 FFT분석을 통하여 알 수 있었다. 이러한 신호 변동의 원인은 플라즈마와 키홀의 거동과 용접 비드의 형상과도 밀접한 관계가 있음을 분석하였다. In this paper, the monitoring system was developed measuring the light signal emitted from the plasma in aluminum laser welding. Spectrum of plasma was measured using a spectrometer, and the photodiode was selected based on the spectrum analysis. The sensor signals for various welding conditions could be obtained, the characteristic of signal was closely related to the intensity and stability of plasma through mean value of signal and FFT analysis. The reason of signal fluctuation was behavior of plasma and keyhole and it was also connected with the surface bead shape of weld." @default.
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- W2012554916 date "2009-03-31" @default.
- W2012554916 modified "2023-09-26" @default.
- W2012554916 title "Monitoring of Laser Material Processing Using Photodiodes" @default.
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- W2012554916 doi "https://doi.org/10.5762/kais.2009.10.3.515" @default.
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