Advances in Manufacturing ›› 2023, Vol. 11 ›› Issue (1): 21-38.doi: 10.1007/s40436-022-00412-2

• • 上一篇    

CBN grain wear and its effects on material removal during grinding of FGH96 powder metallurgy superalloy

Ben-Kai Li1, Biao Zhao1, Wen-Feng Ding1, Yu-Can Fu1, Chang-He Li2, Rong Wang3, Yan-Jun Zhao4   

  1. 1. National Key Laboratory of Science and Technology on Helicopter Transmission, Nanjing University of Aeronautics and Astronautics, Nanjing, 210016, People's Republic of China;
    2. School of Mechanical and Automotive Engineering, Qingdao University of Technology, Qingdao, 266525, Shandong, People's Republic of China;
    3. Aecc Xi'an Aero-engine Ltd, Xi'an, 710021, People's Republic of China;
    4. State Key Laboratory of Superabrasives, Zhengzhou Research Institute for Abrasive and Grinding, Zhengzhou, 450001, People's Republic of China
  • 收稿日期:2022-03-21 修回日期:2022-04-29 发布日期:2023-02-16
  • 通讯作者: Wen-Feng Ding,E-mail:wfding@nuaa.edu.cn E-mail:wfding@nuaa.edu.cn
  • 作者简介:Ben-Kai Li is currently a Ph.D. candidate of Mechanical Engineering at Nanjing University of Aeronautics and Astronautics, P.R. China. His research interest is grinding technology of difficult-to-cut materials;
    Biao Zhao is currently a postdoctoral of Mechanical Engineering at Nanjing University of Aeronautics and Astronautics, P.R. China. His research interest is grinding technology of difficult-to-cut materials;
    Wen-Feng Ding is currently a Professor of Mechanical Engineering and Doctoral Supervisor at Nanjing University of Aeronautics and Astronautics, P.R. China. His research interests include grinding technology and equipment, superhard abrasive tools, machining process simulation and control technology;
    Yu-Can Fu is currently a Professor of Mechanical Engineering and Doctoral Supervisor at Nanjing University of Aeronautics and Astronautics, P.R. China. His research interests include high efficiency machining technology, super abrasive tool technology and green cooling technology;
    Chang-He Li is currently a Professor of School of Mechanical & Automotive Engineering at Qingdao University of Technology, P.R. China. His research interests include precision machining and intelligent manufacturing.

CBN grain wear and its effects on material removal during grinding of FGH96 powder metallurgy superalloy

Ben-Kai Li1, Biao Zhao1, Wen-Feng Ding1, Yu-Can Fu1, Chang-He Li2, Rong Wang3, Yan-Jun Zhao4   

  1. 1. National Key Laboratory of Science and Technology on Helicopter Transmission, Nanjing University of Aeronautics and Astronautics, Nanjing, 210016, People's Republic of China;
    2. School of Mechanical and Automotive Engineering, Qingdao University of Technology, Qingdao, 266525, Shandong, People's Republic of China;
    3. Aecc Xi'an Aero-engine Ltd, Xi'an, 710021, People's Republic of China;
    4. State Key Laboratory of Superabrasives, Zhengzhou Research Institute for Abrasive and Grinding, Zhengzhou, 450001, People's Republic of China
  • Received:2022-03-21 Revised:2022-04-29 Published:2023-02-16
  • Supported by:
    This work was financially supported by the National Natural Science Foundation of China (Grant Nos. 92160301, 52175415), Major Special Projects of Aero-engine and Gas Turbine (Grant No. 2017-VII-0002-0095), and Funding for Outstanding Doctoral Dissertation in NUAA (Grant No. BCXJ19-06).

摘要: Grinding with cubic boron nitride (CBN) superabrasive is a widely used method of machining superalloy in aerospace industries. However, there are some issues, such as poor grinding quality and severe tool wear, in grinding of powder metallurgy superalloy FGH96. In addition, abrasive wheel wear is the significant factor that hinders the further application of CBN abrasive wheels. In this case, the experiment of grinding FGH96 with single CBN abrasive grain using different parameters was carried out. The wear characteristics of CBN abrasive grain were analyzed by experiment and simulation. The material removal behavior affected by CBN abrasive wear was also studied by discussing the pile-up ratio during grinding process. It shows that morphological characteristics of CBN abrasive grain and grinding infeed direction affect the CBN abrasive wear seriously by simulation analysis. Attrition wear, micro break, and macro fracture had an important impact on material removal characteristics. Besides, compared with the single cutting edge, higher pile-up ratio was obtained by multiple cutting edges, which reduced the removal efficiency of the material. Therefore, weakening multiple cutting edge grinding on abrasive grains in the industrial production, such as applying suitable dressing strategy, is an available method to improve the grinding quality and efficiency.

The full text can be downloaded at https://link.springer.com/article/10.1007/s40436-022-00412-2

关键词: FGH96 powder metallurgy superalloy, Single-grain grinding, Cubic boron nitride (CBN) abrasive wear, Material removal behavior

Abstract: Grinding with cubic boron nitride (CBN) superabrasive is a widely used method of machining superalloy in aerospace industries. However, there are some issues, such as poor grinding quality and severe tool wear, in grinding of powder metallurgy superalloy FGH96. In addition, abrasive wheel wear is the significant factor that hinders the further application of CBN abrasive wheels. In this case, the experiment of grinding FGH96 with single CBN abrasive grain using different parameters was carried out. The wear characteristics of CBN abrasive grain were analyzed by experiment and simulation. The material removal behavior affected by CBN abrasive wear was also studied by discussing the pile-up ratio during grinding process. It shows that morphological characteristics of CBN abrasive grain and grinding infeed direction affect the CBN abrasive wear seriously by simulation analysis. Attrition wear, micro break, and macro fracture had an important impact on material removal characteristics. Besides, compared with the single cutting edge, higher pile-up ratio was obtained by multiple cutting edges, which reduced the removal efficiency of the material. Therefore, weakening multiple cutting edge grinding on abrasive grains in the industrial production, such as applying suitable dressing strategy, is an available method to improve the grinding quality and efficiency.

The full text can be downloaded at https://link.springer.com/article/10.1007/s40436-022-00412-2

Key words: FGH96 powder metallurgy superalloy, Single-grain grinding, Cubic boron nitride (CBN) abrasive wear, Material removal behavior