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为加工出符合摩擦学性能要求的ZCu Sn10Zn2铜合金表面微造型形貌,采用激光微造型技术对ZCu Sn10Zn2铜合金表面进行网格图案化处理,利用共聚焦显微镜和X射线应力测定仪对加工后的试样进行表面形貌表征及残余应力测试。考察不同工艺参数对材料耐磨损性能的影响。结果表明:激光微造型后材料的表面粗糙度随激光功率的增大先减小后增大,微沟槽的深度随激光功率的增大先增大后减小,微沟槽的宽度与工作电流成正相关性,但随电流的增大趋于饱和。表面残余应力随工作电流增大趋势明显,微造型后,表层存在较大的残余拉应力。试验结果对深入探索ZCu Sn10Zn2铜合金的激光微造型工艺提供了一定的数据基础。
In order to process the micro-topography of ZCu Sn10Zn2 copper alloy, which meets the tribology performance requirements, the surface of ZCu Sn10Zn2 copper alloy was patterned by laser micro-modeling technology. After confocal microscopy and X-ray stress measurement, Of the sample surface morphology and residual stress test. The effects of different process parameters on the wear resistance of the material were investigated. The results show that the surface roughness of the laser micro-formed material first decreases and then increases with the increase of the laser power. The depth of the micro-groove first increases and then decreases with the increase of the laser power. The width of the micro-groove and its working Current is positively correlated, but tends to saturate with increasing current. The surface residual stress increases obviously with the working current. After micro-modeling, the surface has larger residual tensile stress. The test results provide some data foundation for further exploration of the laser micro-molding process of ZCu Sn10Zn2 copper alloy.