Processing Method for Spring Groove on Inner Circular Surface of Piston Oil Ring
This study employed CNC precision cutting technology to machine double-threaded grooves with depths ranging from 50 to 250μm on the inner wall of the cylinder liner,with a groove width of 3 mm,to inves-tigate the effects of different groove shapes on the friction and wear characteristics of the cylinder-piston ring.The experiments were conducted using the TCLPR-1 cylinder liner-piston ring friction and wear test device under the same load and rotational speed.The results showed that double-threaded grooves with a depth of 150μm sig-nificantly improved lubrication conditions,increased oil film thickness,reduced friction and surface roughness,and enhanced oil storage capacity and support performance.In contrast,grooves with a depth of 50μm exhibited poorer performance.
Double-threaded groove textureFriction and wearCylinder liner-piston ringContact resistance
万方数据
维普
