Browse > Article
http://dx.doi.org/10.7467/KSAE.2015.23.6.656

A Study on the Mechanical Property of Sillicon Diamond-like-carbon Coating for Insulation of Electrically Assisted Forming Die Component  

Kim, Woo-young (Innovative Engineering Team)
Lee, Hyun-woo (Innovative Engineering Team)
Yang, Dae-ho (Innovative Engineering Team)
Hong, Sung-tae (Department of Mechanical Engineering, Ulsan University)
Publication Information
Transactions of the Korean Society of Automotive Engineers / v.23, no.6, 2015 , pp. 656-662 More about this Journal
Abstract
In the present study, multi-layered Si DLC (Silicon Diamond-Like Carbon) coatings with HMDSO (Hexamethyldisiloxane) buffer layers are applied on SKD 11 substrates by PECVD (Plasma Enhanced Chemical Vapor Deposition) with different HMDSO gas flow rates, while the gas flow rate of $C_2H_2$ is fixed to enhance the electric resistivity of forming dies for electrically assisted forming. The HMDSO buffer layer is introduced to increase adhesion between the base metal and Si-DLC layers. The result of evaluation of electric resistivity and adhesion strength shows that the properties are affected by the flow rate of HMDSO, while the flow rate of 80 sccm results in the coating with the highest electric resistivity and adhesion strength among the selected flow rates.
Keywords
Diamond-like-carbon; Coating; Resistivity; Adherence; Hardness; Forming die;
Citations & Related Records
Times Cited By KSCI : 3  (Citation Analysis)
연도 인용수 순위
1 V. Singh, J. C. Jiang and E. I. Meletis, "Crdiamondlike Carbon Nanocomposite Films: Synthesis, Characterization and Properties," Thin Solid Films, Vol.489, Issue 1-2, pp.150-158, 2005.   DOI
2 J. U. Ahn, S. G. Ahn, I. W. Lyo, H. I. Kim and W. Kim, "Development of the DLC Coated Valve Lifter for Low Friction," KSAE Spring Conference Proceedings, pp.7-12, 2010.
3 G. Fedosenko, A. Schwabediseen, J. Engemann, E. Braca, L. Valentini and J. M. Kenny, "Pulsed PECVD Deposition of Diamond-like Carbon Films," Diamond and Related Materials, Issue 3-6, pp.1047-1052, 2002.
4 T. Michler, M. Grischke, I. Traus, K. Bewilogua and H. Dimigen, "DLC Films Deposited by Bipolar Pulsed DC PACVD," Diamond and Related Materials, Vol.7, No.2-5, pp.459-462, 1998.   DOI
5 H. S. Myung and J. G. Han, "A Study on the Synthesis and Mechanical Properties of WC/C Multilayered Films," J. Kor. Inst.Sur. Eng, Vol.35, No.3, pp.121-126, 2002.
6 G. S. Kim and Y. K. Cho, "Study on Adhesion of DLC Fims with Interlayer," J. Kor. Inst.Sur. Eng, Vol.43, No.3, pp.127-131, 2010.   DOI
7 K. J. Kim, S. J. Yoo and B. I. Choi, "Effect of DLC Coating-layer on Engine Wear Characteristics for Improving Fuel Consumption of Automotive Engine," Transactions of KSAE, Vol.18, No.1, pp.112-119, 2010.
8 W. Y. Kim, H. W. Lee, D. H. Yang and S. T. Hong, "A study of the Mechanical Property of Diamond-like-carbon Coatingfor Insulation of Electrically Assisted Forming Die Component," KSAE Annual Conference Proceeding, pp.1125-1126, 2014.
9 D. P. Monaghan, "Deposition of Wear Resistant Coatings Based on Diamond like Carbon by Unbalanced Magnetron Sputtering," Surface and Coatings Technology, Vol.60, Issue 1-3, pp.525-530, 1993.   DOI
10 K. Taube, "Carbon-based Coatings for Dry Sheetmetal Working," Surface and Coatings Technology, Vol.98, Issue 1-3, pp.976-984, 1998.   DOI