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Surface Texturing Technology by Laser Honing Based on Hydrodynamic Lubrication

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Abstract:

The laser honing technique is a new surface texturing technique. As the piston ring at the top or lower oil attachment point works under worse lubrication condition, its wear increases severely, laser texturing was used to the piston ring/liner, lineary extending grooves and regular arranged dimples with predetermined parameters was well-matched with the needs of lubrication. The effects of different dimple shapes, such as sphere coronal, combined sphere coronal ,columnar, hexahedral, and trapezoidal dimples was analyzed by the theory of hydrodynamic lubrication. It was deduced that trapezoidal dimples are fit for only single running orientation and sphere coronal and combined sphere coronal dimples are fit for double running orientations. The experimental researches show that laser texturing not only can reduce the oil consumption and the cost of engine but also can prolong its work life.

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Periodical:

Key Engineering Materials (Volumes 359-360)

Pages:

340-343

DOI:

https://doi.org/10.4028/www.scientific.net/KEM.359-360.340

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Online since:

November 2007

Authors:

Yong Kang Zhang, Chao Jun Yang, Yong Hong Fu, Jian Zhong Zhou, Xin Jun Hua, Jing Hu Ji

Keywords:

Abrasion, Friction Units, Hydrodynamic Lubrication, Laser Honing, Surface Texturing

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© 2008 Trans Tech Publications Ltd. All Rights Reserved

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