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남재두(J. D. Nam),안민수(M. S. Ahn),차승훈(S. H. Cha),서판기(P. K. Seo),원광우(K. W. Won),이영민(Y. M. Lee),박광수(K. S. Park),배충수(C. S. Bae) 한국소성가공학회 2013 한국소성가공학회 학술대회 논문집 Vol.2013 No.10
According to current development trends for automotive body parts, light weight is a key issue in improving fuel efficiency and CO₂ reduction. Compared to steel and aluminum, magnesium has a relatively low specific gravity. However, it is challenging to use magnesium to produce a product at room temperature because magnesium has a Hexagonal Close-Packed (HCP) crystal structure. Therefore, the structure is not suitable for plastic deformation without using a heating system. So, we suggest the use of a Diamond-Like Carbon (DLC) coating when developing a magnesium sheet forming process. This coating can improve formability and the work environment by increasing the surface roughness. This study compared dies and product before and after DLC coating at same tryout conditions.