Hui Jiang, The Hung Nguyen and Michel Prud’homme
Technical Report (2005)
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Open Access to the full text of this document Published Version Terms of Use: All rights reserved Download (798kB) |
Abstract
Thixoforming technique requires heating the feedstock to a semi-solid state with a uniform temperature distribution, a uniform globular microstructure and an optimum liquid fraction. The skin effect of induction heating results in an exponential heat source (power density) profile within the semi-solid material. In this study, the conjugate gradient method in conjunction with the adjoint method is used to find a heating process to achieve a uniform temperature distribution along the radius of a cylinder in a relatively short time. It is found that a modified CGM may provide a satisfactory heating strategy. The physical and mathematical models take into account the temperature-dependent thermophysical properties. Radiative and convective heat losses and different heating frequencies are also considered.
Subjects: |
2100 Mechanical engineering > 2100 Mechanical engineering 2100 Mechanical engineering > 2103 Plasticity, creep |
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Department: | Department of Mechanical Engineering |
PolyPublie URL: | https://publications.polymtl.ca/3146/ |
Report number: | EPM-RT-2005-07 |
Date Deposited: | 13 Jun 2018 15:56 |
Last Modified: | 02 Oct 2024 14:01 |
Cite in APA 7: | Jiang, H., Nguyen, T. H., & Prud’homme, M. (2005). Optimal control of induction heating for semi-solid metal forming. (Technical Report n° EPM-RT-2005-07). https://publications.polymtl.ca/3146/ |
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