Abstract
With consideration of process characteristics of the newly developed DE-GMAW (double-electrode gas metal arc welding), a finite element analysis (FEA) model is developed to numerically analyze this novel process. To this end, the authors have extended the functions of SYSWELD, a standard software package for numerical analysis of welding processes; simplified the method for processing the weld reinforcement; and proposed an appropriate mode for the welding heat source in this novel process. Based on the FEA results of temperature profile in DE-GMAW, the weld dimension at cross section and temperature distribution are obtained. The predicted and experimentally measured results match satisfactorily. The results show that DE-GMAW has advantages in terms of increasing deposition rate, lowering heat input to base metal, and reducing residual stress and distortion.
Original language | English |
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Pages (from-to) | 416-423 |
Number of pages | 8 |
Journal | Computational Materials Science |
Volume | 39 |
Issue number | 2 |
DOIs | |
State | Published - Apr 2007 |
Bibliographical note
Funding Information:This study is supported by the National Science Foundation, Arlington, VA, USA under Grant DMI-0355324, and the Specialized Research Fund for the Doctoral Program of Higher Education in China (Grant No. 20050422027).
Keywords
- DE-GMAW process
- Finite-element analysis
- Prediction
- Residual stress and distortion
- Weld dimension
ASJC Scopus subject areas
- General Computer Science
- General Chemistry
- General Materials Science
- Mechanics of Materials
- General Physics and Astronomy
- Computational Mathematics