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The Theoretical and Experimental of Tube Drawing With Floating Plug for Micro Heat-Pipes

Published online by Cambridge University Press:  05 May 2011

C.-S. Wang  and
Y.-C. Wang
C.-S. Wang*
Affiliation:
College of Mechanical and Electrical Engineering, National Taipei University of Technology, Taipei, Taiwan 10608, R.O.C.
Y.-C. Wang*
Affiliation:
College of Mechanical and Electrical Engineering, National Taipei University of Technology, Taipei, Taiwan 10608, R.O.C.
*
*Associate Professor
**Ph.D. student
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Abstract

This work presents a novel mathematical model, formed by modifying the conventional Slab Model, to predict the behaviors of tube drawing with a floating plug in the hollow copper tubes. FEM and experimentation are employed to verify the analytical solution. The model incorporates some parameters, including as die semi-angle, plug semi-angle, friction coefficient and wall thickness reduction ratio. The Self Lock Effect is simulated using FEM, and the effect is useful in estimating the critical drawing force. The results of this work reveal that the new model is more accurate than the conventional Slab Model especially at reduction ratios of up to 40%.

Keywords

Floating plugSlab modelSelf-lock effect.
Type
Articles
Information
Journal of Mechanics , Volume 24 , Issue 2 , June 2008 , pp. 111 - 117
Copyright
Copyright © The Society of Theoretical and Applied Mechanics, R.O.C. 2008

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