Residual stresses in CO2 laser beam welded AA6056 Al-sheets of 3.2 and 6.0 mm thicknesses were studied using neutron and high-energy X-ray diffraction. The influence of the temper T4 and T6 before welding, the effect of sheet thickness in T6 temper, and the effectiveness of post-weld heat treatments T6 and T78 for the reduction of residual stresses in the sheets welded initially in the T4 temper were examined. It was found that tensile longitudinal stresses were significantly higher when welded in T6 than in T4. With the increase in the sheet thickness from 3.2 to 6.0 mm, the residual stress profile was affected more than the stress level when welded in T6. For 3.2 mm sheet, the post-weld heat treatments T6 and T78 did not lead to a significant reduction in residual stresses when welded in T4.


    Access

    Access via TIB

    Check availability in my library

    Order at Subito €


    Export, share and cite



    Title :

    Residual stresses in laser beam welded butt joints of the airframe aluminium alloy AA6056


    Additional title:

    Eigenspannungen in lasergeschweißten Stumpfstößen der Flugzeugzellen-Aluminiumlegierung AA6056


    Contributors:
    Staron, P. (author) / Vaidya, W.V. (author) / Kocak, M. (author) / Homeyer, J. (author) / Hackius, J. (author)


    Publication date :

    2006


    Size :

    6 Seiten, 5 Bilder, 1 Tabelle, 12 Quellen





    Type of media :

    Conference paper


    Type of material :

    Print


    Language :

    English




    Fatigue and Fracture Behaviour of Friction Stir Welded Aluminium Alloy AA6056-T6

    Vaidya, W. V. / Angamuthu, K. / Ventzke, V. et al. | British Library Conference Proceedings | 2004


    Residual stresses in flash butt welded rail

    Cai, Zhipeng / Nawafune, Masashi / Ma, Ninshu et al. | Tema Archive | 2011


    Calculation and measurement of residual stresses in aluminium welded joints

    Cramer, Heidi / Lechner, Anton / Kosteas, Dimitris et al. | Tema Archive | 2007


    Experimental determination of shrinkage stresses in butt-welded joints

    Bierett, G. | Engineering Index Backfile | 1935


    Fatigue Properties of Friction Stir Welded Aluminium Butt Joints

    Donne, C. D. / Raimbeaux, G. / Biallas, G. et al. | British Library Conference Proceedings | 2004