TiAl 45XD电化学溶解特性分析及叶片加工试验.pdfVIP

研究论文RESEARCH

引文格式：

刘萌,张明岐,黄明涛,等.TiAl45XD电化学溶解特性分析及叶片加工试验[J].航空制造技术,2022,65(19):94–99.

LIUMeng,ZHANGMingqi,HUANGMingtao,etal.StudyonelectrochemicaldissolutionbehaviorofTiAl45XDand

electrochemicalmachiningofblades[J].AeronauticalManufacturingTechnology,2022,65(19):94–99.

TiAl45XD电化学溶解特性分析及叶片加工试验*

刘萌，张明岐，黄明涛，程小元

（中国航空制造技术研究院，北京100024）

[摘要]针对TiAl45XD合金材料开展了电化学溶解特性分析，对比了材料的理论和实际溶解特性曲线。研究表明，

TiAl45XD合金材料具有良好的电解加工可行性。通过改变电解加工工艺参数，研究了终止间隙、脉冲宽度和振动

周期对电解加工表面质量的影响，在优化工艺参数下加工表面无晶间腐蚀和点蚀。在叶片样件上进行了电解加工工

艺验证，得到了叶身型面表面粗糙度为0.61μm，叶盆叶背型面轮廓度偏差为–0.015mm~+0.022mm的叶片，为TiAl

45XD合金材料复杂型面典型构件的电解加工奠定了基础。

关键词：TiAl45XD；电解加工（ECM）；溶解特性；脉冲参数；晶间腐蚀

StudyonElectrochemicalDissolutionBehaviorofTiAl45XDand

ElectrochemicalMachiningofBlades

LIUMeng,ZHANGMingqi,HUANGMingtao,CHENGXiaoyuan

(AVICManufacturingTechnologyInstitute,Beijing100024,China)

[ABSTRACT]Inthiswork,thedissolutionbehaviorofTiAl45XDwereanalyzed,thecomparisonoftheoreticaland

practicaldissolutionbehaviorcurvesindicatedthatTiAl45XDdisplayedgoodfeasibilityofelectrochemicalmachining

(ECM).Theeffectsofendinginter-electrodegap,pulsedurations,andvibratingperiodsonthemachiningsurface

qualitywereinvestigatedbyvaryingtheECMparameters.Theobtainedsurfaceexhibitedhighqualitysurfacewithout

intergranularcorrosionandpittingwithoptimizingprocessparameters.TheprocessvalidationwerecarriedoutonTiAl

45XDbladesamplesandtheobtainedbladesshowedtheroughnessof0.61μmandconcaveandconvexprofiletolerance

of–0.015mm–+0.022mm,whichlaysafoundationfortheelectrolyticmachiningoftypicalcomponentswithcomplex

profilesofTiAl45XDalloy.

Keywords:TiAl45XD;El