An investigation of heat transfer and friction during hot forging has been performed using experimental and analytical techniques. The interface heat transfer coefficient was measured in experiments in which two flat H-13 tool steel dies were heated to different initial temperatures and brought together under varying pressure levels, or the two dies were heated to the same temperature and used to upset aluminum alloy 2024-0 rings under both isothermal as well as nonisothermal conditions. The coupling between heat transfer and friction during hot forging has been studied by analysis of data from the ring experiments and the generation of heat transfer coefficient and friction shear factor calibration curves derived from finite element simulations. By this means, the effects of forging pressure, deformation rate, and lubrication on the heat transfer coefficient and the friction shear factor were established. It was shown that, for the geometry studied, the value of the friction shear factor is independent of the heat transfer coefficient and vice versa, at least to a first order.
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November 1990
This article was originally published in
Journal of Engineering for Industry
Research Papers
Measurement and Analysis of Heat Transfer and Friction During Hot Forging
P. R. Burte,
P. R. Burte
Department of Industrial & Systems Engineering, ERC for Net Shape Manufacturing, The Ohio State University, Columbus, OH 43210
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Yong-Taek Im,
Yong-Taek Im
Department of Industrial & Systems Engineering, ERC for Net Shape Manufacturing, The Ohio State University, Columbus, OH 43210
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T. Altan,
T. Altan
Department of Industrial & Systems Engineering, ERC for Net Shape Manufacturing, The Ohio State University, Columbus, OH 43210
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S. L. Semiatin
S. L. Semiatin
Battelle Columbus Division, Columbus, OH 43201
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P. R. Burte
Department of Industrial & Systems Engineering, ERC for Net Shape Manufacturing, The Ohio State University, Columbus, OH 43210
Yong-Taek Im
Department of Industrial & Systems Engineering, ERC for Net Shape Manufacturing, The Ohio State University, Columbus, OH 43210
T. Altan
Department of Industrial & Systems Engineering, ERC for Net Shape Manufacturing, The Ohio State University, Columbus, OH 43210
S. L. Semiatin
Battelle Columbus Division, Columbus, OH 43201
J. Eng. Ind. Nov 1990, 112(4): 332-339
Published Online: November 1, 1990
Article history
Received:
March 1, 1989
Online:
April 8, 2008
Citation
Burte, P. R., Im, Y., Altan, T., and Semiatin, S. L. (November 1, 1990). "Measurement and Analysis of Heat Transfer and Friction During Hot Forging." ASME. J. Eng. Ind. November 1990; 112(4): 332–339. https://doi.org/10.1115/1.2899596
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