Three-Dimensional Numerical Simulation of a Gas Tungsten Arc Welding Process
Welding processes are widely used in many industries. The determination of welding parameters and the study of their influence on the mechanical and metallurgical behavior of materials require multiple experiments, and the relevant studies are costly in terms of time and resources. Thus, numeric...
| Main Authors: | , , |
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| Format: | Article |
| Language: | English |
| Published: |
Universitas Indonesia
2019-07-01
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| Series: | International Journal of Technology |
| Subjects: | |
| Online Access: | http://ijtech.eng.ui.ac.id/article/view/1849 |
| Summary: | Welding processes are widely used in many
industries. The determination of welding parameters and the study of their
influence on the mechanical and metallurgical behavior of materials require
multiple experiments, and the relevant studies are costly in terms of time and
resources. Thus, numerical simulations can serve as a solution when it comes to
choosing the appropriate welding process and optimizing its parameters while
minimizing costs. The present work contributes to the development of a finite
element code, using MATLAB software, for the prediction of thermo-mechanical and
metallurgical behavior during the Tungsten inert gas (TIG) welding process.
Numerical computation is based on the mathematical formulation of physical
phenomena and thermal exchanges. In this paper, results dealing with the
prediction of the temperature field evolution during the C50 steel TIG-welding
process are presented. In this case, the thermal problem is solved numerically
using the finite element method. The memory and computation time problems are
solved using optimal stocking and resolution algorithms. To validate the
developed computation code, numerical results are first compared with other
published numerical results, then with our experimental data. A satisfactory
concordance between simulated temperature evolutions and those measured with thermocouples
implanted in the welded sheets was found. |
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| ISSN: | 2086-9614 2087-2100 |