介绍了激光淬火提高气缸套耐磨性的国内外研究及应用动态、技术难点、强化机理、激光处理工艺及淬火方式 ,讨论了激光淬火轨迹和表面预处理对强化效果的影响 ,总结并分析了不同气缸套及缸体的强化效果 结果表明 :在优化的工艺条件下 ,不仅激光淬火缸体延长了寿命 ,而且与之匹配的非激光处理活塞环的耐磨性也提高 50 %左右 ,缸套与缸体的寿命提高 2～ 3倍 The domestic and international research and application dynamics, technical difficulties, strengthening mechanism, laser processing technology and quenching method of laser quenching to improve the wear resistance of cylinder liner were introduced. The effects of laser quenching trajectory and surface pretreatment on the strengthening effect were discussed. The results show that under the optimized process conditions, not only the laser quenched cylinder prolongs the life but also the wear resistance of the non-laser-treated piston ring also increases by about 50%. The cylinder liner And the life of the cylinder increased by 2 to 3 times