16Cr3NiWMoVNbE航空齿轮弹振珩磨光整表面完整性试验研究  

Surface Integrity Analysis of 16Cr3NiWMoVNbE Gear After Elastic Vibration Honing Finishing

作　　者：方园园 刘伟 姚金鑫 程从前[2] 王守纯 邢彬 曹铁山[2] 赵杰[2] FANG Yuanyuan;LIU Wei;YAO Jinxin;CHENG Congqian;WANG Shouchun;XING Bin;CAO Tieshan;ZHAO Jie(AECC Shenyang Engine Research Institute,Shenyang 110015,China;Dalian University of Technology,Dalian 116024,China)

机构地区：[1]中国航发沈阳发动机研究所,沈阳110015 [2]大连理工大学,大连116024

出　　处：《航空制造技术》2023年第16期124-130,共7页Aeronautical Manufacturing Technology

摘　　要：采用弹振珩磨光整工艺对16Cr3NiWMoVNbE渗碳航空直齿轮进行光整加工,研究了不同珩磨周期和未光整齿轮的齿廓几何特征、齿面形貌、横截面微观组织与显微硬度、残余应力等表面完整性特征参数。结果表明,与未光整齿轮相比,弹振珩磨能改善齿廓倒棱圆滑度,降低表面粗糙度并提高表面残余压应力;其指标改善程度随珩磨周期延长而增大。在2倍珩磨周期条件下,实现了齿顶倒棱圆弧过渡,获得了表面短且交叉的细网状条纹,面粗糙度从0.47μm降到0.20μm,齿面平均残余压应力提高了52%。试验研究为弹振珩磨光整工艺在难加工航空齿轮中的应用提供了参考。The role of elastic vibration honing finishing on surface integrity of 16Cr3NiWMoVNbE gear was experimentally examined,by comparing profile feature of tooth chamfering,surface morphology and roughness,crosssectional metallurgic microstructure and microhardness,surface residual stress.Compared to the gear without finishing,elastic vibration honing has improved the chamfering profle,decreased surface roughness and promoted surface residual compressive stress.Such improvements increased with prolong finishing periods of elastic vibration honing.After prolonging for twice times of finishing period,arc transition at crest chamfer and fine mesh strips have been achieved.Moreover,the surface roughness has been decreased from S_(a)0.47μm to S_(a)0.2μm,and the average surface residual compressive stress has been enhanced by 52%.The results give a reference for process design of elastic vibration honing finishing on hard-machining aircraft gears.

关 键 词：航空齿轮 弹振珩磨光整 表面形貌 表面粗糙度 残余应力 

分 类 号：V26[航空宇航科学与技术—航空宇航制造工程]