Volume 21 Issue 3
Jun.  2006
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Article Navigation >  Journal of Aerospace Power  > 2006  >  21(3): 545-549
DENG Si-er, TENG Hong-fei, ZHOU Yan-wei, MA Fu-jian, ZHANG Zhi-hua. Luster Polish Strengthening for Race Surface of the Mainshaft Bearings of Aeroengine[J]. Journal of Aerospace Power, 2006, 21(3): 545-549.
Citation: DENG Si-er, TENG Hong-fei, ZHOU Yan-wei, MA Fu-jian, ZHANG Zhi-hua. Luster Polish Strengthening for Race Surface of the Mainshaft Bearings of Aeroengine[J]. Journal of Aerospace Power, 2006, 21(3): 545-549.
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Luster Polish Strengthening for Race Surface of the Mainshaft Bearings of Aeroengine

  • 1.

    School of Mechanical Engineering, Da1ian University of Technology, Dalian 116023, China

  • 2.

    School of Mechatronics Engineering, Henan University of Science and Technology, Luoyang 471003, China

  • Received Date: 2005-08-30
  • Rev Recd Date: 2005-12-20
  • Publish Date: 2006-06-28
    Abstract
  • The technology of surface modification was an efficient way to increase fatigue life of the mainshaft bearing of the aircraft engines.On the basis of theoretical analysis of the surface modification,this paper proposed a new strengthening treatment technology of the raceway surface for the mainshaft bearings(i.e.luster polish strengthening treatment),and designed a corresponding special machine for luster polish strengthening treatment(the centrifugal strengthening machine).The experimental results show that the surface hardness of the raceway is increased and the surface roughness is improved and the residual compression stress is produced on the surface of the raceway,the method of luster polish strengthening can increase notably the fatigue life of the mainshaft bearings and decrease the degree of dispersion of fatigue life.

     

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