Journal of the Korean Society of Manufacturing Technology Engineers (한국생산제조학회지)

The Korean Society of Manufacturing Technology Engineers (한국생산제조학회)
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A Effects of Magnetic Field For Fiber Laser Micro Welding Process Using Carbon Steel of SCP1-S

자기장 영향에 따른 냉연압연 강판의 파이버 레이저 마이크로 접합 공정

  • 이철구 (서울과학기술대학교 기계공학과) ;
  • 이우람 (서울과학대학교 NID 융합기술 대학원)
  • Received : 2011.11.03
  • Accepted : 2011.12.28
  • Published : 2012.06.15
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Abstract

We have studied on welding dissimilar materials of Carbon steel SCP1-S by using laser beam. In this research we have performed some experiments to know the possibility of welding dissimilar materials using laser beam and magnetic fields by adjusting the power output of 35W laser. Other conditions of the experiments were as follows : the welding speed was varied in the range 10 m/min nitrogen gas was used as shield gas, the flow value of shield gas was ranged 10 L/min. In order to ascertain of the welded surface, we have done the tensile strength testing, the hardness testing and the microscope observation. As a result, we have found that tensile strength was the highest at the condition of the welding speed of 10mm/s, the flow value of 10 L/min, the gap of two materials 0, and the use of nitrogen gas. Above testings have also showed that the tensile strength was generally satisfactory since the penetration of welding was almost complete due to the thinness of the materials. In addition, the formation of the welded area was excellent when it had the highest tensile strength.

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References

  1. Jia, C., and Xiao, K., 1989, "Improvement of Weld Quality by Electromagnetic Sirring," Proceedings of the 8th International Conference on Offshore Mechanics and Arctic Engineering, pp. 117-120.
  2. Zhang, Y., Quian, B. N., and Gou, X. M., 2002, "Study of Eectromagnetic Stirring Refining Microstructures of Pipe-line steel SAW Deposits," Acta Metrologia Sinica, Vol. 15, No. 4, pp. 396-400.
  3. Huang, Q., Hagstroem, J., Skoog, H., and Kullberg, G., 1991, "Effect of Laser Parameter Variation on Sheet Metal Welding," Int. J. Join Mater, Vol. 3, No. 3, pp. 79-88.
  4. Voller, V. R., Brent, A. D., and Prakash, C., 1989, "The Modeling of Heat, Mass and Solute Transport in Solidification System," Int. J. Transfer, Vol. 32, No. 1719-1731. https://doi.org/10.1016/0017-9310(89)90054-9
  5. Matsyda, F., Nakagawa, H., Nakata, K., and Ayani, R., 1978, "Effect of Electromagnetic Stirring on Weld Solidification Structure of Aluminum Alloys (Report I)," Int. Trans. JWRI, Vol. 7, No. 1, pp. 111-127.
  6. Bennon, W. D., and Incropera, C., "A Continuum Model for Momentum, Heat and Species Transport in Binary Solid-liquid Phase Change System-I. Model Formulation," Int. J. Heat Mass Transfer, Vol. 30, No. 10, pp. 2161-2170.
  7. Swaminathan, C. R., and Voller, V. R., 1997, "Towards a General Numerical Scheme for Solidification System," Int. J. Heat Mass Transfer, Vol. 40, No. 12, pp. 2859-2868. https://doi.org/10.1016/S0017-9310(96)00329-8
  8. Ni, J., and Incropera, F. P., 1995, "Extension of the Continuum Model for Transport Phenomena Occurring during Metal Alloy Solidification-I. The Conservation Equations," Int. J. Heat Mass Transfer, Vol. 38, No. 7, pp. 2161-2170.
  9. Yoo, H., and Viskanta, R., 1992, "Effect of Anisotropic Permeability on the Transport Process during Solidification of a Binary Mixture," Int. J. Heat Mass Transfer, Vol. 35, No. 10, pp. 2335-2346. https://doi.org/10.1016/0017-9310(92)90076-5
  10. Roplekar, J. K., and Dantzig, J. A., 2001, "A Study of Solidification with a Rotating Magnetic Field," Int. J. Cast. Metals Research, Vol. 14, No. 2, pp. 79-98.
  11. Neilson, D. G., and Incropera, F. P., 1993, "Effect of Rotation on Fluid Motion and Channel Formation during Unidirectional Solidification of a Binary Alloy," Int. J. Heat Mass Transfer, Vol. 36, No. 2, pp. 2161-2170.
  12. Na, G. D., Yoo, Y. T., Shin, B. H., and Shin, H. J., 2007, "A Study on the Surface Hardening of SCM4 Steel Using a Continuous Wave Nd:YAG Laser," KSMTE, Vol. 16, No. 5, pp. 24-32.
  13. Yoo, Y. T., Shin, H. J., and Jang, W. T., 2004, "Surface Heat Treatment of Die Material by Means of CW Nd:YAG Laser," KSMTE, Vol. 13, No. 5, pp. 67-74.
  14. Park, C. E., Li, C. S., and Kim, I. S., 2003, "Mathematical Models for Optimal Bead Geometry for GMA Welding Process," International Journal of Korea Welding Society, Vol. 3, No. 1, pp. 8-16.