Proceedings of the Korean Society for Technology of Plasticity Conference (한국소성가공학회:학술대회논문집)

The Korean Society for Technology of Plasticity and materials processing (한국소성∙가공학회)
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A PRECISION COLD FORGING OF DIFFERENTIAL SIDE GEAR FOR AUTOMOBILE

  • Noh T.D. (DAEYEUN Precision Co. Ltd.) ;
  • Jung S.H. (DAEYEUN Precision Co. Ltd.) ;
  • Lee Y.S. (Dept. of Materials Processing, Korea Institute of Machinery and Materials) ;
  • Kwon Y.N. (Dept. of Materials Processing, Korea Institute of Machinery and Materials) ;
  • Lee J.H. (Dept. of Materials Processing, Korea Institute of Machinery and Materials)
  • Published : 2003.10.01
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Abstract

Forged gears have the obvious advantages with the greater utilisation of raw material and high productivity over the machined gears. The forged bevel gear has been used in differential gear for automotive with a high reliance. On the other hand, the studies have been continued to improve the accuracy and expand the applying areas. In this paper, a whole manufacturing process for forged gear from die design and cold forging to heat-treatment was introduced. The stress and elastic deformation for forging die have been analysed by the 3D-FEM-package. The real elastic deformation of die was measured by the strain-gages. The elastic deformation of die was reached to 1mm, in terms of the present study. The analysed quantitative dimension of die was taken into consideration into the CAD/CAM data for forging die.

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