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RESEARCH PAPERS: Heat Transfer in Manufacturing

Observation, Prediction, and Correlation of Geometric Shape Evolution Induced by Non-Isothermal Sintering of Polymer Powder

[+] Author and Article Information
M. Kandis

Department of Mechanical Engineering, The University of Texas at Austin, Austin, TX 78712

T. L. Bergman

Department of Mechanical Engineering, University of Connecticut, Storrs, CT 06269

J. Heat Transfer 119(4), 824-831 (Nov 01, 1997) (8 pages) doi:10.1115/1.2824189 History: Received March 10, 1997; Revised June 27, 1997; Online December 05, 2007

Abstract

Sintering of powders occurs in a wide array of manufacturing technologies and geophysical phenomena. Despite the prevalence of powder sintering, little attention has been paid to sintering of macroscopic shapes under non-isothermal conditions. In this paper (1) features of a representative, experimentally grown solid shape produced by non-isothermal sintering are discussed, (2) prediction of the solid shape evolution is achieved using a hybrid heat transfer, sintering, and consolidation model, (3) comparison of the actual and predicted solid shapes is made, (4) parametric simulation of solid part growth in conjunction with void expansion is attained, and (5) analytical predictions of the void space evolution are developed and discussed.

Copyright © 1997 by The American Society of Mechanical Engineers
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