Paper Title:
Numerical and Experimental Studies of the Precision Forging of a Screw Propeller
  Abstract

The isothermal precision forging of a screw propeller was studied by means of numerical simulation and experimental forming. The deforming processes of the billet under two different forging patterns were discussed. The distributions of the flow line, the effective strain within the billet and the variation of the forging load during the forming process were analyzed. Results showed that there was a great difference of the effective strain existing between the blades and the wheel hub. The material flow and the distribution of deformation can be improved obviously by adding a core punch on the die. The distribution of deformation and forming load can be changed and controlled by adjusting the process parameters. The forging die was designed and manufactured according to the simulation results and perfect precision forgings have been acquired. Both of the simulation and the forming test showed that the precision forging of screw propellers could be formed with the isothermal precision forging satisfactorily.

  Info
Periodical
Key Engineering Materials (Volumes 419-420)
Edited by
Daizhong Su, Qingbin Zhang and Shifan Zhu
Pages
429-432
DOI
10.4028/www.scientific.net/KEM.419-420.429
Citation
W. W. Wang, F. Han, S. J. Luo, "Numerical and Experimental Studies of the Precision Forging of a Screw Propeller ", Key Engineering Materials, Vols. 419-420, pp. 429-432, 2010
Online since
October 2009
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Price
$32.00
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