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| Research on Profiled Grinding Technology of FGH96 Turbine Disk Slot |
| QIN Bin1, WANG Ziming2, YU Jianhua3, ZHANG Yu3, LI Xun2 |
1. Shandong University of Technology, Zibo 255000, China;
2. Beihang University, Beijing 100191, China;
3. AECC Commercial Aircraft Engine Co., Ltd., Shanghai 200241, China |
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Abstract 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, ap =0.002 mm, vf =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.
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2022, 
