한국기계가공학회지 (Journal of the Korean Society of Manufacturing Process Engineers)

한국기계가공학회 (The Korean Society of Manufacturing Process Engineers)
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고융점 소재의 열 보조 가공에서 레이저 -플라즈마 다중열원의 예열 효과에 대한 연구

A Study on the Preheating Effect of Multi-Heat Sources using Laser Plasma in the Thermally Assisted Machining of a High-Melting-Point Material

  • 이춘만 (창원대학교 기계공학부) ;
  • 김성규 (창원대학교 메카트로닉스공학부)
  • Lee, Choon-Man (Dept. of Mechanical Engineering, College of Mechatronics, Changwon National University) ;
  • Kim, Seong-Gyu (Mechanical Design and Manufacturing, School of Mechatronics Engineering, Changwon National University)
  • 투고 : 2019.09.06
  • 심사 : 2019.09.23
  • 발행 : 2019.10.30
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초록

Recently, with the development of the aerospace and automotive industries, the demand for high-melting-point materials has increased. However, high-melting-point materials are difficult to cut through conventional machining methods. Thermally assisted machining (TAM) is a method for improving the machinability by preheating the materials. A laser, the most commonly used device for TAM, has high efficiency through local preheating but is not sufficient for maintaining a high preheating temperature due to rapid cooling. However, the use of multi-heat sources can supplement the disadvantage of a single heat source. The high preheating temperature can be maintained with a wide and deep heat-affected zone (HAZ) by multi-heat sources. The purpose of this study is to analyze the preheating effects of multi-heat sources using laser plasma. Thermal analysis and preheating experiments were carried out. As a result, the high preheating effect of multi-heat sources compared with a single heat source was verified.

키워드

참고문헌

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피인용 문헌

  1. Study on Ultra-precision Machining of Si Optics Using Laser-assisted Machining vol.30, pp.5, 2019, https://doi.org/10.7735/ksmte.2021.30.5.339