【摘要】 为解决增材制造的镍基高温合金部件难以满足高性能航空构件表面质量的问题，采用电解质等离子体抛光技术对增材Inconel 718样件进行抛光工艺试验。基于部分析因和响应曲面分析法，研究了抛光电压、电解液温度、加工时间、抛光剂浓度和络合剂浓度对表面粗糙度和材料去除率的影响规律，并对加工参数组合进行望小优化。结果表明，当采用抛光电压314.4 V、电解液温度70℃、加工时间15 min、抛光剂和络合剂质量分数2%和2.5%，增材打印的Inconel 718工件表面粗糙度可从Ra2.93μm降至Ra0.307μm，此时的材料去除率为2.072μm/min。更多还原

【Abstract】 To address the issue of nickel-based superalloy components manufactured by additive manufacturing failing to meet the surface quality requirements of aerospace applications,the paper conducted experiments on additive manufactured Inconel 718 samples by electrolyte plasma polishing technology. Based on fractional factorial and response surface analysis,the influence of voltage,electrolyte temperature,processing time,polishing agent and complexing agent concentration on the surface quality and material removal rate were studied. Simultaneously,an optimization of the processing parameter combinations was performed. The result indicated that when using polishing voltage of 314.4 V,electrolyte temperature of 70 ℃,processing time of 15 min,polishing agent concentration of 2%,complexing agent concentration of 2.5%,the surface roughness of the additive manufactured Inconel 718 component can be reduced from Ra2.93 μm to Ra0.307 μm,with a material removal rate of 2.072 μm/min.更多还原