Experimental investigation of the effects of engine cylinder honing as tribological aspect on performance, wear, and lubrication
Sustainable Surface Engineering Approaches for Industrial Applications: Surface Treatments and Surface Textures, CRC Press, ss.1-24, 2026
- Yayın Türü: Kitapta Bölüm / Araştırma Kitabı
- Basım Tarihi: 2026
- Doi Numarası: 10.1201/9781003713364-1
- Yayınevi: CRC Press
- Sayfa Sayıları: ss.1-24
- Yıldız Teknik Üniversitesi Adresli: Evet
Özet
The piston–ring cylinder liner contact is the single largest contributor to frictional losses in an internal combustion (IC) engine, causing 20–40% of all mechanical losses. If these mechanical losses can be reduced by 10%, then vehicle fuel efficiency could be increased by approximately 1.5–2.5%. In order to reduce losses through friction, a frequent strategy involves modifying the topography of the contact surface between the cylinder bores and the piston rings . In order to minimize such losses, it is important to optimize the liner surface topography by a consistent and more productive finishing process such as honing. Thus, fuel and oil consumption and greenhouse gas emissions are decreased with increasing engine life and its durability . According to the literature survey, various honing techniques have been used, and the generated surfaces with various surface roughness parameters have been characterized using numerical calculation, but the tribological properties and advantages of different honing angles have not yet been investigated in the literature using pin-on-plate tribometer friction tests. In this original and innovative work, the diesel engine cylinder liner surface was honed with cross-hatch angles (20°, 30°, 40°, 45°, and 60°), and then they were cut precisely (10 × 13 × 10 mm). Taking into account formal test conditions, their tribological performance was evaluated through a very sensitive reciprocating tribometer, using a steel ball (100 Cr6) on a variable honed cylinder liner using 5W-40 engine oil to investigate their wear and friction behavior in the boundary lubrication regime. The optimum angle and micronano roughness behavior with lower friction improving lubrication, reducing friction and wear, is determined, and the rubbed surfaces as well as all additives are analyzed through 2D–3D roughness digital optical microscopy, SEM–EDS, and AFM analysis.