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

The Korean Society of Manufacturing Technology Engineers (한국생산제조학회)
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Comparative Study on the Fatigue Properties of FSW and MIG Joints of A16005 Sheets to Design Railway Vehicles

철도차량 설계를 위한 A16005 알루미늄 판재의 마찰교반용접(FSW)과 MIG 용접부의 피로 특성 비교 연구

  • 최원두 (한밭대학교 공동실험실습관) ;
  • 고준빈 (한밭대학교 기계설계공학과) ;
  • 구기영 (한국폴리텍 대학 IV 홍성대학 산업설비자동화)
  • Received : 2010.03.05
  • Accepted : 2010.09.15
  • Published : 2010.10.15
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Abstract

Friction stir welding results in low distortion and high joint strength compared with other welding procedures, and is able to join all aluminium alloys that are not considered as virtually weldable with classical liquid state techniques. The comparative study on high cycle fatigue properties between A16005-T6 friction stir welds and MIG weld joints have been performed and fracture mechanisms for the fatigue specimens were investigated. Although mechanical properties are lower than the corresponding base material, FSW joints of A16005-T6 become higher at tensile and fatigue strength in comparison with the traditional fusion weld(MIG). The fracture surfaces of FSW and MIG fatigue specimens cleary show different aspects of the fracture morphology. MIG weldments were characterized by voids and cleavage(brittle fracture) but FSW specimens showed the presence of ductile fracture surface.

Keywords

References

  1. Chang, W. S., Choi, K. Y., Kang, M. J., and Gak, Y., 2000, "UP and Coming Friction Stir Welding," Journal of KWS, Vol. 18, No. 6, pp. 704-712.
  2. Bang, H. S., 1992, "A study on the mechanical behavior of welded part in thick plate," Journal of KWS, Vol. 10, No. 4, pp. 250-258
  3. Lohwasser, D., 2000, "Application of friction stir welding for aircraft industry," Proceeding of the Second International Symposium on FSW, Gothenburg, Sweden.
  4. Esparza, J. A., Davis, W. C., Trillo, E. A., and Murr, L. E., 2000, "Friction Stir Welding of Magnesium alloy AZ31B," J. Mater. Sci. Lett. Vol. 21, pp. 917-920.
  5. Ki, Y., Trillo, E. A., and Murr, L. E., 2000, "Friction Stir Welding of Alumimun alloy 2024," J. Mater. Sci. Lett. Vol. 19, pp. 1047-1051. https://doi.org/10.1023/A:1006795221194
  6. Thomas, W. M., 1999, "Friction Stir Welding-Tool Design and Development," Proceeding of the First International Symposium on FSW, Thousand Oaks, USA,
  7. Park, Y. B., Koo, J. S., and Goo, B. C., 2009, "A Study on the Friction Stir Welding Properties of A6005 Extruded Aluminum Panels," Journal of railway, Vol. 12, No. 4, pp. 512-517.
  8. Lim, S. G., Kim, S. S., Lee, C. G., and Kim, S. J., 2005, "Mechanical Properties of Friction Stir Welded Al Alloys with Different Hardening Mechanisms," Metals and materials international, Vol. 11, No. 2, pp. 113-120. https://doi.org/10.1007/BF03027454
  9. Park, H. S., Choi, W. D., and Ko, J. B., 2009, "A Study on the Effect that Pin Shape on Mechanical Strength in Dissimilar Friction Stir Welding A6061-T6 and A5052-H32," Journal of the Korean Society of Machine Tool Engineers, Vol. 18, No. 3, pp. 270-278.
  10. Lim, S. G., Kim, S. S., Lee, C. G., and Kim, S. J., 2004, "Tensile Behavior of Friction Stir Welded Al 6061-T651," J. Kor. Inst. Met. & Mater., Vol. 42, No. 1, pp. 29-36.
  11. Srivatsan, T. S. and Prakash, A., 1995, "The quasistatic fracture behavior of an aluminium alloy metal-matrix composite," Compos. Sci. Technol., Vol. 54, No. 3, pp. 307-315. https://doi.org/10.1016/0266-3538(95)00057-7
  12. Srivatsan, T. S. and Meslet, A. H., 2002, "The fatigue and final fracture behavior of SiC particle reinforced 7034 aluminum matrix composites," Compos. Part B, Eng., Vol. 33, No. 5, pp. 391-404. https://doi.org/10.1016/S1359-8368(02)00025-2
  13. Srivatsan, T. S., Meslet, A. H., Petraroli, M., Hotton, B. and Lam, P. C., 2002, "Influence of silicon carbide particulate reinforcement on quasi static and cyclec fatigue fracture behavior of 6061 aluminium alloy composites," Mat. Sci. Eng. A, Vol. 325, No. 1-2, pp. 202-214. https://doi.org/10.1016/S0921-5093(01)01444-7
  14. Wang, Z. G., Li, S., and Sun, L., 1995, "Fatigue and fracture behaviors of discontinuously reinforced aluminium matrix composites," Key. Eng. Mater., Vols. 104-107, pp. 729-748. https://doi.org/10.4028/www.scientific.net/KEM.104-107.729
  15. Ceschini, L., Boromei, I., Minak, G., Morri, A., and Tarterini, F., 2007, "Effect of friction stir welding on microstructure, tensile and fatigue properties of the AA7005/10 Vol.%$Al_2O_3p$ composite," Composites Science and Technology, Vol. 67, pp. 605-615. https://doi.org/10.1016/j.compscitech.2006.07.029