FGH96涡轮盘榫槽成形磨削加工技术研究  

Research on Profiled Grinding Technology of FGH96 Turbine Disk Slot

作　　者：秦彬 王子铭 于建华 张渝 李勋[2] QIN Bin;WANG Ziming;YU Jianhua;ZHANG Yu;LI Xun(Shandong University of Technology,Zibo 255000,China;Beihang University,Beijing 100191,China;AECC Commercial Aircraft Engine Co.,Ltd.,Shanghai 200241,China)

机构地区：[1]山东理工大学,淄博255000 [2]北京航空航天大学,北京100191 [3]中国航发商用航空发动机有限责任公司,上海200241

出　　处：《航空制造技术》2022年第19期74-79,共6页Aeronautical Manufacturing Technology

基　　金：国家科技重大专项(2018ZX04005001)。

摘　　要：榫槽是航空发动机涡轮盘零件上重要的结构特征,涡轮盘通过榫槽与叶片连接,因此榫槽的轮廓精度和表面质量直接影响涡轮盘组件的性能和可靠性。通常制造涡轮盘的材料性能优异,但加工性能极差。利用电镀CBN成形砂轮对FGH96涡轮盘榫槽进行精密磨削加工试验研究,结果表明,采用600#电镀CBN成形砂轮,在转速n=48000 r/min、磨削深度a_(p)=0.002 mm、进给速度v_(f)=100 mm/min的条件下,可以实现FGH96涡轮榫槽的精密磨削加工,加工后榫槽整体轮廓尺寸和表面粗糙度均满足设计要求。同时,在完成4个涡轮盘榫槽的磨削加工后,砂轮仍具有较好的磨削能力。研究结果充分验证了电镀CBN成形砂轮可以实现FGH96涡轮盘榫槽的精密磨削加工,为FGH96涡轮盘榫槽的精密加工提供了一种新的工艺方法。The slot is an important structural feature of aero-engine turbine disk.Turbine disk is connected with blades by slots.Therefore,the profile accuracy and surface quality of the slot directly affect the performance and reliability of turbine disk components.However,the materials of the turbine disk have excellent properties and extremely poor cutting performance.The electroplated CBN profiled grinding wheel is used to carry out precision grinding experiments on FGH96 turbine disk slots.The experimental results show that using 600#electroplated CBN profiled grinding wheel,under the conditions of parameters n=48000 r/min,a_(p)=0.002 mm,v_(f)=100 mm/min,can realize the precision grinding of FGH96 turbine slots.The profile dimensions and surface roughness of the machined slots meet the design requirements.At the same time,after grinding four turbine disk slots,the grinding wheel still has good grinding ability.The research results fully verify that the precision grinding of FGH96 turbine disk slots can be realized by electroplated CBN profiled grinding wheel,which provides a new technological method for precision machining of FGH96 turbine disk slots.

关 键 词：榫槽 电镀CBN成形砂轮 磨削 FGH96 涡轮盘 

分 类 号：V263[航空宇航科学与技术—航空宇航制造工程]