Study On Composite Surface Processing Technology Of Cylinder Liner By Crater Modeling And Micro-particles Filling

This paper proposes a new technology——crater modeling and micro-particles filling composite surface processing technology, to strengthen the surface of the cylinder after learning various kinds of surface enhancing methods. The effect of this technology is detected by experiments.The main design route of this paper is that. First, the cylinder liner is processed by crater modeling with different programs, and then the craters are filled with micro serpentine particles. At last, the friction and wear characteristics of the cylinders with different composite processing programs are detected from high and low load conditions. Comparing to the mechanical honing cyliner liner, to determine the best composite processing program. In addition the wron surfaces are characterized by means of SEM and EDS, to explore the antifriction and anti-wear mechanism.The results of the test show that it is the best composite processing program of 100MPa when the diameter of crater is 0.4mm; the distance of crater is three times of the diameter; the depth of crater is 0.5mm.Its friction coefficient is reduced by 34.81%, and its wear is reduced by 76.75%, and its anti-adhesion wear time is extended by 254.6%, comparing to the mechanical honing cyliner liner. It is the best composite processing program of 60MPa when the diameter of crater is 0.4mm; the distance of crater is three times of the diameter; the depth of crater is 1mm. Its friction coefficient is reduced by 31.45%, and its wear is reduced by 67.44%, and its anti-adhesion wear time is extended by 322.48%, comparing to the mechanical honing cyliner liner.The results show that this technology could reduce friction and wear and extend anti-adhesion wear time of the cylinder liner...