Welding Characteristics of SCP1 on CW Nd:Yag Laser

CW Nd:YAG 레이저에 의한 SCP1의 용접특성

  • 신병헌 (조선대학교 일반대학원) ;
  • 유영태 (조선대학교 기전공학과) ;
  • 신호준 (조선대학교 일반대학원) ;
  • 윤철중 (조선대학교 메카트로닉스공학과)
  • Published : 2007.05.01

Abstract

Laser welding of metals has been widely used to improve a wear resistance and a corrosion resistance of the industrial parts. The objective of this research works is to investigate the influence of the process parameters, such as the welding for metals with CW Nd:YAG lasers. The bead-on-plate welding tests are carried out for several combinations of the experimental conditions. In order to quantitatively examine the characteristics of the butt welding, the welding quality of the cut section, stain-stress behavior and the hardness of the welded part are investigated. From the results of the investigation, it has been shown that the optimal welding condition without defects in the vicinity of the welded area and with a good welding quality is 1325W of the laser power, and 1.4m/min of laser welding speed.

Keywords

References

  1. Hoskingf, M. and Rejent, A., 'Intermediate Temperature Joining of Dissimilar Metals,' WELDING JOURNAL, pp. 127-136, 1999
  2. Olabi, A. G., Gasalino, G., Benyounis, K. Y. and Hashmi, M.S.J., 'An ANN and Taguchi algorithms integraed approach to the optimization of CO2 laser welding,' Advances in Engineering Software, pp. 1-6, 2006 https://doi.org/10.1016/j.advengsoft.2006.02.002
  3. Sun, Z. and Kuo, M., 'Bridging the joint gap with wire feed laser welding,' Journal of Materials Processing Technology, Vol. 87, No. 1, pp. 213-222, 1999 https://doi.org/10.1016/S0924-0136(98)00346-X
  4. Suh, J., Kang, H. S., Lee, J. H., Park, K. T., Lee, M. Y. and Jung, B. H., 'Minimization of Welding Defect in CO2 Laser Welded Tube,' International Journal of Precision Engineering and Manufacturing, Vol. 6, No. 3, pp. 19-23, 2005
  5. Hitz, B., 'Introduction to laser technology,' IEEE Press, U.S.A., pp. 1-6, 1998
  6. Eroglu, M., Aksoy, M. and Orhan, N., 'Effect of coarse initial grain size on microstructure and mechanical properties of weld metal and HAZ of a low carbon steel,' Material Science and Engineering, Vol. A269, No. 1, pp. 59-66, 1999
  7. Murugan, S., Kumar, P. V., Raj, B. and Bose, M.S.C., 'Temperature distribution during multipass welding of plates,' International Journal of Pressure Vessels and Piping, Vol. 75, No. 12, pp. 891-905, 1998 https://doi.org/10.1016/S0308-0161(98)00094-5
  8. Bertrand, Ph., Smurov, I. and Grevery. D., 'Application of near infrared pyrometry for continuous Nd:YAG laser welding of stainless steel,' Applied Surface Science, Vol. 168, No. 1. pp. 182-185, 2000 https://doi.org/10.1016/S0169-4332(00)00586-9
  9. Carmignani, C., Mares, R. and Toselli, G., 'Transient finite element analysis of deep penetration laser welding process in a singlepass butt-welded thick steel plate,' Comput. Method Appl. Mech. Engrg., Vol. 179, No. 3, pp. 197-214, 1999 https://doi.org/10.1016/S0045-7825(99)00043-2
  10. Nam, G. J., Kim, K. W., Hong, J. U., Lee, J. H., Suh, J. and Cho, H. Y., 'Finite Element Analysis of Nd:YAG Pulse Laser Welding for AISI 304 Stainless Steel Plate,' The Korean Society of Mechanical Engineers, Vol. 30, No. 4, pp. 428-434, 2006 https://doi.org/10.3795/KSME-A.2006.30.4.428
  11. Kim, C. H., Choi, W. Y., Chae, H. B., Kim, J. H. and Rhee, S. H., 'A Study on $CO_2$ Laser-TIG Hybrid Welding of Zinc-Coated Steel Sheet,' The Korean Welding Society, Vol. 24, No. 4, pp. 306-310, 2006
  12. Hu, B. and Richardson, I. M., 'Mechanism and possible solution for transverse solidification cracking in laser welding of high strength aluminum alloys,' Materials Science and Engineering, Vol. A429, No. 1, pp. 287-294, 2006 https://doi.org/10.1016/j.msea.2006.05.040
  13. Yoo, Y. T., Shin, H. J., Ahn, D. G. and Im, K. G., 'Dissimilar Metal Welding of Austenitic Stainless Steel and Low Carbon Steel using CW Nd:YAG Laser,' Korean Society of Precision Engineering, Vol. 22, No. 8, pp. 17-26, 2005
  14. Yoo, Y. T., Shin, H. J., Ahn, D. G., Im, K. G. and Shin, B. H., 'Dissimilar Metal Welding of Medium Carbon Steel and Austenitic Stainless Steel utilize CW Nd:YAG Laser,' Korean Society of Precision Engineering, Vol. 23, No. 3, pp. 47-55, 2006