- Volume 29 Issue 10
DOI QR Code
T-joint Welding Characteristics of Multi-thin Plate Dissimilar Thickness of SS41 of Automobile Battery by using Nd:YAG Laser
Nd:YAG 레이저를 이용한 자동차 배터리용 SS41 다층박판 이종두께 T형상 용접 특성
- Yang, Yun-Seok (Department of Advanced Parts and Materials Engineering, Chosun Univ.) ;
- Hwang, Chan-Youn (Department of Advanced Parts and Materials Engineering, Chosun Univ.) ;
- Yoo, Young-Tea (Department of Mechatronics Engineering, Chosun Univ.)
- Received : 2012.03.09
- Accepted : 2012.06.12
- Published : 2012.10.01
In this paper, we present research experimental results about the different thickness T-joint welding of the high power continuous wave(CW) Nd:YAG laser for the secondary battery of a vehicle. Although the conventional method used for the secondary battery is a argon TIG welding, we utilize a laser welding to improve Tungsten Inert Gas(TIG) welding's weakness. The laser, which has a couple of advantage such as aspect ratio, low Heat Affected Zone(HAZ), good welding quality and fast productivity utilized in this work is a CW Nd:YAG laser. In order to observe laser welding sections, we used a optical microscope. Through the analysis of the metallographic, hardness, aspect ratio, and heat input, we obtained the desired data in condition of 1800 W laser beam power and 1.8 m/min and 2.0 m/min laser beam travel speeds. In order to compare electric resistances of the argon TIG welding and laser welding, we made an actual battery and the electric resistance of the laser welding is reduced by 40~45% comparing with the argon TIG welding.
Supported by : 한국연구재단
- Korea Institute of Science and Technology Information, "Hybrid new power system," MCTNET, pp. 1-15, 2008.
- Korea Institute of Science and Technology Information, "The study on bibliometric profiles of academic Li secondary batteries research," Next Generation Growth Engine Industry, pp. 1-32, 2004.
- Park, S. Y. and Kim, S. W., "Nickel-metal hydride battery technology of electric vehicles," Physics & High Technology, Vol. 8, No. 4, pp. 1-16, 1999.
- Ahn, S. H., Jeong, J. H., and Nam, K. W., "Evaluation of Characteristic for SS400 and STS304 Steel by Weld Thermal Cycle Simulation," Journal of Ocean Engineering and Technology, Vol. 19, No. 6, pp. 64-71, 2005.
- Ueji, R., Fujii, H., Cui, L., Nishioka, A., Kunishige, K., and Nogi, K., "Friction stir welding of ultrafine grained plain low-carbon steel formed by the martensite process," Materials Science and Engineering: A, Vol. 423, No. 1-2, pp. 324-330, 2006. https://doi.org/10.1016/j.msea.2006.02.038
- Gural, A., Bostan, B., and Ozdemir, A. T., "Heat treatment in two phase region and its effect on microstructure and mechanical strength after welding of a low carbon steel," Materials & Design, Vol. 28, No. 3, pp. 897-903, 2007. https://doi.org/10.1016/j.matdes.2005.10.005
- Gharibshahiyan, E., Raouf, A. H., Parvin, N., and Rahimian, M., "The effect of microstructure on hardness and toughness of low carbon welded steel using inert gas welding," Materials & Design, Vol. 32, No. 4, pp. 2042-2048, 2011. https://doi.org/10.1016/j.matdes.2010.11.056
- Oh, Y. S., Yoo, Y. T., and Shin, H. J., "A Study on T Joint Welding by High Power Fiber Laser of SAPH Steel Plate for Automobile," Transactions of KSAE, Vol. 17, No. 3, pp. 35-44, 2009.
- Li, M., Li, Z., Zhao, Y., Li, H., Wang, Y., and Huang, J., "Influence of welding parameters on weld formation and microstructure of dual-laser beams welded T-joint of aluminum alloy," Advances in Materials Science and Engineering, Vol. 2011, Paper No. 767260, 2011.
- Moazed, R., Szyszkowski, W., and Bitner, D., "Welded T-joint connections of square thin-walled tubes under a multi-axial state of stress," The Journal of Strain Analysis for Engineering Design, Vol. 45, No. 8, pp. 629-646, 2010. https://doi.org/10.1177/030932471004500802
- Yoo, Y. T. and Shin, H. J., "A Study on the Characteristics of Repair Welding for Mold Steel using Continuous Wave Nd:YAG Laser," J. of the KSPE, Vol. 27, No. 11, pp. 7-16, 2010.