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ACTA AERONAUTICAET ASTRONAUTICA SINICA ›› 1991, Vol. 12 ›› Issue (2): 112-114.

• 论文 • Previous Articles     Next Articles

APPLICATION OF EXTRUSION STRENGTHENING TECHNIQUE ON INCREASING LIFE OF WING-OIL-DIVISION

Beijing University of Aeronautics and AstronauticsLiu WentingChengdn Aircraft Company Li Jinhua1   

  1. 1. Beijing University of Aeronautics and Astronautics;2. Chengdu Aircraft Company
  • Received:1990-06-27 Revised:1990-09-07 Online:1991-02-25 Published:1991-02-25

Abstract: Fatigue tests of analog specimens in which holes are extruded by different extrusion parameters are carried out under random load spectrum. Statistical comparison and analysis of test data show that extrusion strengthening significantly increases fatigue life of wing-oil-division. Also optimal extrusion parameters are chosen.

Key words: extrusion strengthening, load spectrum, fatigue life