한국생산제조학회지 (Journal of the Korean Society of Manufacturing Technology Engineers)

  • 제20권5호
  • /
  • Pages.646-652
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  • 2011
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  • 2508-5093(pISSN)
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  • 2508-5107(eISSN)
한국생산제조학회 (The Korean Society of Manufacturing Technology Engineers)
권호 표지

사출금형용 고탄소강(HP4MA)의 레이저열처리 특성에 관한 연구

A Study on Laser Surface Treatment Characteristics of High Carbon Steel(HP4MA) for Injection Mold

  • 투고 : 2011.06.10
  • 심사 : 2011.07.13
  • 발행 : 2011.10.15
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초록

Recently, lots of automobile part manufacturers try to increase glass fiber content of their plastic parts to improve strength and impact-resistance. For this reason, injection mold requires high hardness and wear-resistant. Laser surface treatment is used to improve characteristics of wear and to enhance the fatigue resistance for injection mold. In this paper, high carbon steel (HP4MA) for injection mold material was heat-treated to harden surface by using high power diode laser (HPDL). To find the process parameters for laser surface treatment of HP4MA, many experiments are carried out as changing the parameters of surface temperature and travel speed of laser. From the results of the experiments, it has been shown that the maximum average hardness is approximately 711~739 Hv when the temperature and the travel of laser are $1,050^{\circ}C$ and 2 mm/sec.

키워드

참고문헌

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