Transactions of the Korean Society of Mechanical Engineers A (대한기계학회논문집A)

The Korean Society of Mechanical Engineers (대한기계학회)
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Three Dimensional Analysis of High Frequency Induction Welding Phenomena

고주파 유도용접 현상의 3차원 해석

  • 김현중 (한국과학기술원 기계공학과) ;
  • 윤성기 (한국과학기술원 기계공학과)
  • Published : 2006.07.01
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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.

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References

  1. Scott, P. E, and Smith, W., 1995, 'A Study of the Key Parameters of High Frequency Welding,' Tube China '95, pp. 161-181
  2. Scott, P. E., 1996, 'The Effects of Frequency in High Frequency Welding,' Transactions of Tube 2000, Toronto, ITA Conference
  3. Scott, P. E., 1996, 'High Frequency Welding of Low Carbon steel Tube,' Technical Papers of Thennatool Corp.
  4. Scott, P. E., 'Modern Methods of High Frequency Welding used to Produce Consistent Quality,' Technical Papers of Thermatool Corp.
  5. Asperheim, J. I., Grande, B., Markegaard, L., Induksjon, E., Buser, J. E. and Lombard, P., 1998, 'Temperature Distribution in the Weld Vee Cross Section,' Tube International, Vol. 17, No. 90, pp. 563-567
  6. Asperheim, J. I. and Grande, B., 2000, 'Temperature Evaluation of Weld Vee Geometry and Performance,' Tube International, Vol. 19, No. 110, pp. 497-502
  7. Asperheirn, J. I. and Grande, B., 'Factors Influencing Heavy Wall Tube Welding,' Technical Papers of Tube Net
  8. Scott, P.E., 1997, 'Weld Area Design for High Frequency Induction Welding pipe and tube,' Tube International, Vol. 16, No. 78, pp. 185-190
  9. ASM Handbook, Vol. 6, Welding, Brazing and Soldering
  10. Cheng, David K., 1992, 'Field and Wave Electromagnetics,' 2nd Edition, Addison Wesley
  11. Tegopoulos, J.A. and Kriezis, E.E., 1985, 'Eddy currents in Linear Conducting Media.'
  12. O'Brien, R. L., 1991, 'Welding handbook,' 8th edition, The American Welding Society
  13. Holman, J. P., 2000, 'Heat transfer,' 8th edition
  14. Brandes, E. A. and Brook, G.B., 1992, 'Smithells Metal Reference Book,' 7th edition, Butterworth-Heinemann
  15. Haga, H., Aoki, K. and Sato, T., 1981, 'The Mechanism of Formation of Weld Defects in High Frequency Electric Resistance Welding,' Welding Journal, Vol. 60, No. 6, pp. 104s-109s
  16. Haga, H., Aoki, K. and Sato, T., 1980, 'Welding Phenomena and Welding Mechanism in High Frequency Electric Resistance Welding,' Welding Journal, Vol. 59, No. 7, pp.208s-212s
  17. CST EM STUDIO Manual, Version 1.3
  18. Hibbitt, K. and Sorensen, Inc., 1998, 'ABAQUS Theory Manual,' Version 5.8