Journal of Welding and Joining

  • 제25권4호
  • /
  • Pages.49-57
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  • 2007
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  • 2466-2232(pISSN)
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  • 2466-2100(eISSN)
대한용접접합학회 (The Korean Welding and Joining Society)
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저출력 펄스형 Nd:YAG 레이저를 사용한 클래딩에서 클래딩 변수들이 용착효율에 미치는 영향 분석 및 최적화

Analysis and Optimization of the Cladding Parameters for Improving Deposition Efficiency in Cladding using a Low Power Pulsed Nd:YAG Laser

  • 이형근 (한밭대학교 신소재공학부 생산가공공학)
  • Lee, Hyoung-Keun (Dept. of Welding and Production Engineering, Hanbat National University)
  • 발행 : 2007.08.31
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초록

The optimization of the cladding parameters was studied to maximize the deposition efficiency in the laser cladding using a low power pulsed Nd:YAG laser. STS304 stainless steel plate and Co alloy powder were used as a substrate and powder for cladding, respectively. The six cladding parameters were selected through preliminary experiments and their effects on the deposition efficiency were analyzed statistically. Experiments were designed and carried out using the Taguchi experimental method using a L18 orthogonal array. It was found from the results of analysis of variance(ANOVA) that the powder feed position and powder feed angle had the most significant effects on the deposition efficiency, but the powder feed rate and laser focal position had nearly no effects. The deposition efficiency could be maximized at 0mm of the powder feed position and 50o of the powder feed angle in the experimental range. From this experimental analysis, a new laser cladding head with 20o of the powder feed angle was designed and manufactured. With a new laser cladding head, the highest deposition efficiency of 12.2% could be obtained.

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참고문헌

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