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사출금형용 고탄소강(HP4MA)의 레이저열처리 특성에 관한 연구
황현태(Hyun-Tae Hwang),최흥원(Hung-Won Choi),김종도(Jong-Do Kim) 한국생산제조학회 2011 한국생산제조학회지 Vol.20 No.5
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℃ and 2 mm/sec.
박홍석(Hong-seok Park),최흥원(Hung-won Choi),강무진(Mu-jin Kang),이희범(Heui-bom Lee),장인성(In-sung Chang),이현동(Hyeoun-dong Lee),최병욱(Byung-wook Choi) 한국자동차공학회 2003 한국자동차공학회 지부 학술대회 논문집 Vol.2003 No.10
Nowaday, the increasing global competition put much pressure on increasing the efficiency and quality at all stage in the life cycle of manufacturing systems e.g., (re)design, implementation and operation. To increase efficiency, there is need to minimize the time and cost for development and operation of a manufacturing systems. Therefore, it becomes more and more to important to analysis and test a manufacturing system before a large investment.<br/> In this paper, we introduce procedure for digital manufacturing and OLP for high efficiency. And. according to these procedures, we implement a virtual laser welding cell using IGRIP and CATIA V5 as an example.