Journal of Welding and Joining

The Korean Welding and Joining Society (대한용접접합학회)
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Study on Characteristics of Laser Surface Transformation Hardening for Rod-shaped Carbon Steel (II) - Comparison of Characteristics on Laser Surface Transformation Hardening as a Difference on Beam Profile -

탄소강 환봉의 레이저 표면변태경화 특성에 관한 연구 (II) - 빔 프로파일 차이에 따른 레이저 표면변태경화 특성 비교 -

  • Kim, Jong-Do (Division of Marine Engineering System, Korea Marine University) ;
  • Kang, Woon-Ju (Graduated school, Korea Marine University)
  • 김종도 (한국해양대학교 기관시스템공학부) ;
  • 강운주 (한국해양대학교 대학원)
  • Published : 2007.06.30
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Abstract

The conventional study on the laser surface transformation hardening has been carried out with a beam of the specified shape and uniform power-intensity distribution in order to ensure the uniformity of the hardening depth. Two types of beams - the circular gaussian beam and rectangular beam of the uniform power-intensity distribution were used in this study. we were supposed to optimize the process parameters and to compare the hardening results with two optics respectively. As a result, the hardness distribution of the hardened zone was similar in both cases and the hardened phase by the rectangular beam was denser than that by the circular gaussian beam.

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References

  1. John F. Ready : LIA HANDBOOK OF LASER MATERIAL PROCESSING, Laser Institute of America, (2001), 223-261
  2. 柴田公博 : レーザ燒入の實際, 容接學會誌 64-3, (1995), 10-13
  3. KS : D0215, Methods of measuring case depth for steels, (1985)
  4. G.N. Haidemenopoulos : Coupled thermodynamic/ kinetic analysis of diffusional transformations during laser hardening and laser welding, Journal of alloy sand compounds, 320, (2001), 302-307 https://doi.org/10.1016/S0925-8388(00)01493-6

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