The Effects of Surface Texturing on Friction Performance under Reciprocating Sliding Condition
In this research, we focus on the improvement of frictional performance of piston ring achieved by Laser Surface Texturing. Five kinds of samples (non-texture, dimple 100μm, dimple120μm, groove 45 degrees to sliding direction and groove 90 degrees to sliding direction) were tested under reciprocating sliding condition. The results showed that the sample of groove 90 degrees to sliding condition has the maximum decrease on either average friction coefficient (26%) or friction coefficient at end points of stock (33%). And we think that under boundary lubrication regime, the uniformity of distribution of the texture and flow of oil in contact surface are the key factors which affect the friction coefficient.
Yunn Lin Hwang and Jeng Haur Horng
T. Qin et al., "The Effects of Surface Texturing on Friction Performance under Reciprocating Sliding Condition", Key Engineering Materials, Vol. 739, pp. 36-41, 2017