Paper Title:
Failure Analysis of a Die for Cold Precision Forging of Bevel Gears
  Abstract

The life of bevel gear dies is determined by its stress state mainly. During the forging, the die teeth fractured and the bottom corner cracked in a few times. Finite Element Analysis (FEA) was employed to investigate the reason of failure. The results show that the tip fracture and the bottom corner crack mainly resulted from excessive tensile stress. In accordance with the FEA results, the non-plane parting face was changed into plane parting face and the radius of bottom hole was enlarged. The FEA result proves that the modification can greatly reduce stress concentration and the application proves that the modification can effectively solve the premature failure of the die.

  Info
Periodical
Advanced Materials Research (Volumes 44-46)
Edited by
Z.Y. Shen, M.N. James, W.D. Li, and Y.X. Zhao
Pages
779-786
DOI
10.4028/www.scientific.net/AMR.44-46.779
Citation
J. S. Jin, J. C. Xia, X. Y. Wang, H. Liu, "Failure Analysis of a Die for Cold Precision Forging of Bevel Gears", Advanced Materials Research, Vols. 44-46, pp. 779-786, 2008
Online since
June 2008
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