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레이저 표면처리 된 금속의 마찰특성에 관한 실험적 연구
박성용(Sung-Yong Park),민준원(Joon-Won Min),이은길(Eun-Gil Lee),추인길(In-Gil-Choo) 한국레이저가공학회 2010 한국레이저가공학회지 Vol.13 No.1
The studies on the fine processing on the surface of the metal utilizing the technique for LST (Laser surface texturing) have been performed recently. This study has acquired the lower frictional coefficient and endurance in the harsh environment of motion by realizing the frictional motion in the low lubricating range of low frictional coefficient in addition to storing of lubricant through fine processing on the frictional part of metal.
레이저 표면 텍스처링된 피스톤링의 마찰 저감 효과에 관한 연구
박종혁(Jong-Hyuck Park),민준원(Joon-Won Min),이은길(Eun-Gil Lee),추인길(In-Gil Choo) 한국자동차공학회 2012 한국자동차공학회 부문종합 학술대회 Vol.2012 No.5
Although laser texturing technology is known for effective method to improve the tribological performance of friction surface for years, new applications are reported. Up to date, laser texturing approaches found in the literature are mainly discussed about the dimple shape cases or its friction effect problems. In this paper attempts to investigate the effect of friction reduction due to micro-scale dimple pattern on Piston ring versus cylinder liner. Tribological experiments were conducted with the Piston top ring(CrN coated SAE 9254) patterned for line marking . Marking laser with a scanner were used for the laser texturing process.
박성용(Sung-Yong Park),민준원(Joon-Won Min),이은길(Eun-Gil Lee),추인길(In-Gil-Choo) 한국자동차공학회 2010 한국자동차공학회 부문종합 학술대회 Vol.2010 No.5
The studies on the fine processing on the surface of the metal utilizing the technique for LST (Laser surface texturing) have been performed recently. This study has acquired the lower frictional coefficient and endurance in the harsh environment of motion by realizing the frictional motion in the low lubricating range of low frictional coefficient in addition to storing of lubricant through fine processing on the frictional part of metal.
마찰손실 저감을 위한 Laser Surface Texturing의 패턴에 관한 연구
박종혁(Jong-Hyuck Park),민준원(Joon-Won Min),정우영(Woo-Young Chung),이명호(Meung-Ho Lee),이은길(Eun-Gil Lee),추인길(In-Gil Choo) 한국자동차공학회 2011 한국자동차공학회 부문종합 학술대회 Vol.2011 No.5
Although laser texturing technology is known for effective method to improve the tribological performance of friction surface for years, new applications are reported. Up to date, laser texturing approaches found in the literature are mainly discussed about the dimple shape cases or its friction effect problems. However, for industrial applications, the LST pattern on lubricating surface conditions was investigated in this study. Tribological experiments were conducted with the CrN coated SAE 9254 steel patterned for dot and line marking. Marking laser with a scanner were used for the laser texturing process. In addition, LST was applied to the Piston top ring and tribological experiments were compared.