Paper Title:
Study on the Rules and Effects of Wear on Die Service Life in Steel Synchronizer Gear Ring Forging Process
  Abstract

The die accuracy and die service life reduce due to die wear during precision forming processes of steel synchronizer gear ring. The most serious part of wear is the middle between two tooth shapes. The rules of the wear and initial die hardness and frictional coefficient are analyzed based on numerical simulation. It shows that the higher of the initial die hardness, the better antiwear and good lubrication is benefit to reduce wear and prolong the die service life. The effect of the temperature on die life is reflected through hardness. The relationship of die hardness and die temperature, forming time is deduced. The higher of the die temperature and the longer of the forging time, the more serious of die wear. To prolong the die life and improve the quality of forgings, the synthetic forming technology is adopted and the ejection way and control system of the Plate Friction Press are improved. Experiment verification shows that the die service life has been prolonged.

  Info
Periodical
Advanced Materials Research (Volumes 291-294)
Chapter
Materials Forming
Edited by
Yungang Li, Pengcheng Wang, Liqun Ai, Xiaoming Sang and Jinglong Bu
Pages
668-671
DOI
10.4028/www.scientific.net/AMR.291-294.668
Citation
J. Zhao, J. M. Yi, S. M. Luo, "Study on the Rules and Effects of Wear on Die Service Life in Steel Synchronizer Gear Ring Forging Process", Advanced Materials Research, Vols. 291-294, pp. 668-671, 2011
Online since
July 2011
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