Comparison of fatigue behaviour between resistance spot and friction stir spot welded aluminium alloy sheets
作者： Y. Uematsu , K. Tokaji
关键词: Aluminium alloy 、 Spot welding 、 Fatigue limit 、 Composite material 、 Joint (geology) 、 Materials science 、 Weld zone 、 Fracture (geology) 、 Metallurgy 、 Welding 、 Shear (sheet metal)
摘要: AbstractTensile shear fatigue tests have been performed using resistance spot welded (RSW) joint and friction stir (FSSW) of aluminium alloy sheets. When strength was characterised in terms applied load, RSW showed higher than FSSW the entire load range, while normalised with respect to nugget area joint. Friction exhibited a very small scatter life compared joint, indicating that is stable reliable joining method. Macroscopic fracture modes were similar both joints: high region parent sheet low region. It indicated geometrical factors around weld zone played dominant role determining mechanism joints.
ingenta.com参考文章(11)
Sheri D. Sheppard, Michael Strange, FATIGUE LIFE ESTIMATION IN RESISTANCE SPOT WELDS: INITIATION AND EARLY GROWTH PHASE Fatigue & Fracture of Engineering Materials & Structures. ,vol. 15, pp. 531- 549 ,(1992) , 10.1111/J.1460-2695.1992.TB01293.X
D. M. Jiang, S. B. Kang, H. W. Kim, Tensile and fatigue fracture behaviour of a spot welded Al- Mg alloy Journal of Materials Science Letters. ,vol. 16, pp. 1179- 1181 ,(1997) , 10.1007/BF02765403
Y UEMATSU, K TOKAJI, Y TOZAKI, T KURITA, S MURATA, Effect of re-filling probe hole on tensile failure and fatigue behaviour of friction stir spot welded joints in Al–Mg–Si alloy International Journal of Fatigue. ,vol. 30, pp. 1956- 1966 ,(2008) , 10.1016/J.IJFATIGUE.2008.01.006
Y. TOZAKI, Y. UEMATSU, K. TOKAJI, Effect of processing parameters on static strength of dissimilar friction stir spot welds between different aluminium alloys Fatigue & Fracture of Engineering Materials & Structures. ,vol. 30, pp. 143- 148 ,(2007) , 10.1111/J.1460-2695.2006.01096.X
Yasunari Tozaki, Yoshihiko Uematsu, Keiro Tokaji, Effect of tool geometry on microstructure and static strength in friction stir spot welded aluminium alloys International Journal of Machine Tools and Manufacture. ,vol. 47, pp. 2230- 2236 ,(2007) , 10.1016/J.IJMACHTOOLS.2007.07.005
Y. Zhang, D. Taylor, Sheet thickness effect of spot welds based on crack propagation Engineering Fracture Mechanics. ,vol. 67, pp. 55- 63 ,(2000) , 10.1016/S0013-7944(00)00029-1
M. Yamamoto, A. Gerlich, T. H. North, K. Shinozaki, Mechanism of cracking in AZ91 friction stir spot welds Science and Technology of Welding and Joining. ,vol. 12, pp. 208- 216 ,(2007) , 10.1179/174329307X177900
S. Daneshpour, A.H. Kokabi, A.A. Ekrami, A.K. Motarjemi, Crack initiation and kinking behaviours of spot welded coach peel specimens under cyclic loading Science and Technology of Welding and Joining. ,vol. 12, pp. 696- 702 ,(2007) , 10.1179/174329307X238416
M. I. Khan, M. L. Kuntz, P. Su, A. Gerlich, T. North, Y. Zhou, Resistance and friction stir spot welding of DP600: a comparative study Science and Technology of Welding and Joining. ,vol. 12, pp. 175- 182 ,(2007) , 10.1179/174329307X159801
A. R. Krause, R. A. Chernenkoff, A Comparative Study of the Fatigue Behavior of Spot Welded and Mechanically Fastened Aluminum Joints SAE Technical Paper Series. ,(1995) , 10.4271/950710