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A Method to Predict Temperature Fields During Frictional Welding by Introducing the Heat Input Coefficient and the Heat Input Surface Transfer

[+] Author Affiliations
T.-T. Ikeshoji, A. Suzumura, A. Demura, T. Yamazaki

Tokyo Institute of Technology, Tokyo, Japan

Paper No. WTC2005-63639, pp. 823-824; 2 pages
doi:10.1115/WTC2005-63639
From:
  • World Tribology Congress III
  • World Tribology Congress III, Volume 1
  • Washington, D.C., USA, September 12–16, 2005
  • Conference Sponsors: Tribology Division
  • ISBN: 0-7918-4201-0 | eISBN: 0-7918-3767-X
  • Copyright © 2005 by ASME

abstract

A method to predict the time evolution of temperature fields during the frictional welding of stainless steel bars is proposed. The features of the proposed method are the introduction of the heat input coefficient and the transfer of the heat generating plane proportional to the shortening of the work. The heat input coefficient is the multiplication of the heat conversion efficiency of mechanical work and the dynamic friction coefficient. The values of heat input coefficient are decided experimentally. The frictional welding experiments were conducted for the austenitic stainless steel bars with welding conditions. The measured temperature at several points on the surface of the stator agrees with the calculated temperature. Despite the welding conditions, the heat input coefficient shows little difference. Therefore, using the proposed method, by deducing the heat input coefficient from several experiments, the time evolution of temperature fields for work with other diameters might be able to be predicted precisely.

Copyright © 2005 by ASME

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