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Modification of residual stress by post-weld vibration

Munsi, A.S.M.Y. and Waddell, A.J. and Walker, C.A. (2001) Modification of residual stress by post-weld vibration. Materials Science and Technology, 17 (5). pp. 601-605. ISSN 0267-0836

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Abstract

Previous studies have suggested that welding residual stresses can be reduced by the application of controlled vibration. In the present study welded specimens were processed after being cooled to room temperature, with varying amplitude of applied stress and time of vibration. An increase in the applied stress led to a significant decrease in the residual stresses. The effect of time of vibration was found to be very small for a lower range of applied stresses (<230 MPa); an increase in the time of vibration had no influence on residual stresses. At higher applied stresses (>230 MPa), the residual stresses were found to redistribute with increasing time of vibration. It is shown that the energy concept of the vibratory stress relief mechanism was not validated.

Item type: Article
ID code: 5707
Keywords: applied stress, residual stress, mechanical engineering, Mechanical engineering and machinery
Subjects: Technology > Mechanical engineering and machinery
Department: Faculty of Engineering > Mechanical and Aerospace Engineering
Related URLs:
    Depositing user: Strathprints Administrator
    Date Deposited: 30 Mar 2008
    Last modified: 16 Jul 2013 19:25
    URI: http://strathprints.strath.ac.uk/id/eprint/5707

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