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http://dx.doi.org/10.7735/ksmte.2012.21.6.988

Characteristics of Surface Hardening of Nd:YAG Laser According to Temperature Changes of SM45C  

Lee, Ka-Ram (조선대학교 첨단부품소재공학과)
Yang, Yun-Seok (조선대학교 첨단부품소재공학과)
Hwang, Chan-Youn (조선대학교 첨단부품소재공학과)
Yoo, Young-Tae (조선대학교 메카트로닉스공학과)
Publication Information
Journal of the Korean Society of Manufacturing Technology Engineers / v.21, no.6, 2012 , pp. 988-997 More about this Journal
Abstract
Laser surface hardening is one of core technologies to enhance various characteristics such as the strength, hardness, toughness, abrasion resistance, and fatigue resistance for the mold material. This paper focuses on testing characteristics of the laser heat treatment according to the preheating parameters in case of the SM45C medium carbon steel. In this paper, we assume that the power and travel speed of the laser are 1,800W and 0.5m/min, respectively, and the range of the preheating temperature is $50^{\circ}C{\sim}300^{\circ}C$. From the result of the test, we observed that the hardness width and depth are enhanced as the temperature is increased. Also, the best average hardness was 751.7Hv for the temperature of $100^{\circ}C$.
Keywords
SM45C; Surface Hardening; Nd:YAG Laser; Preheating; Mold material;
Citations & Related Records
Times Cited By KSCI : 6  (Citation Analysis)
연도 인용수 순위
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