期刊
JOURNAL OF MECHANICAL SCIENCE AND TECHNOLOGY
卷 35, 期 6, 页码 2615-2622出版社
KOREAN SOC MECHANICAL ENGINEERS
DOI: 10.1007/s12206-021-0532-1
关键词
Flat wire electrode; Electromagnetic force; Double ellipsoid moving heat source; Temperature distribution
资金
- PSG College of Technology Coimbatore
A comprehensive numerical model was developed to predict the transient temperature distribution during gas metal arc welding process with flat wire electrode (FW-GMAW). The numerical analysis indicated that the peak temperature increased due to the increased heat power density in the flat wire electrode, affecting the geometry of the weld bead.
A comprehensive numerical model was developed to predict the transient temperature distribution during the gas metal arc welding process with the use of flat wire electrode (FW-GMAW). Since the perimeter of the flat wire electrode has increased, the turbulence of the molten characteristics is altered due to the effect of electromagnetic force. To validate, a general double ellipsoid moving heat source model was adopted and the numerical analysis predicted that the peak temperature had risen due to increased heat power density in the flat wire electrode. The proposed approach of numerical analysis confirmed that, the initial arc and steady state temperature was high for FW-GMAW process. In addition, the consequence of temperature distribution in FW-GMAW was analyzed and its significance to weld bead geometry was broadly discussed in this paper.
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