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http://dx.doi.org/10.3795/KSME-A.2006.30.7.865

Three Dimensional Analysis of High Frequency Induction Welding Phenomena  

Kim Hyun-Jung (한국과학기술원 기계공학과)
Youn Sung-Kie (한국과학기술원 기계공학과)
Publication Information
Transactions of the Korean Society of Mechanical Engineers A / v.30, no.7, 2006 , pp. 865-872 More about this Journal
Abstract
High frequency induction welding is widely employed for longitudinal seam welding of small scale tubes and pipes because of its relatively high processing speed and efficiency. This research is aimed at understanding the variables that affect the quality of the high frequency induction welding. The welding variables include the welding frequency, weld speed, V-angle and tube thickness. Temperature distribution of the tube is calculated through three dimensional coupled electromagnetic and thermal FE analysis. The skin and proximity effects are considered in the electromagnetic analysis. The influence of the impeder is also analyzed. The effects of the operating welding variables on the temperature distribution are investigated quantitatively by exhibiting the heat affected zone (HAZ). The results explain the mechanism of significant enhancement of welding efficiency when the impeder is used. The proper welding conditions without the overheated edge are obtained through FE analysis.
Keywords
High Frequency Induction Welding; Electromagnetic Analysis; Welding Variables; Eddy Current; Impede;
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