Modification of residual stress by post-weld vibration
Modification of residual stress by post-weld vibration
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DOI：
10.1179/026708301101510294
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发表时间：
2001-05
影响因子：
1.8
通讯作者：
A. Munsi;A. J. Waddell;Colin Walker
中科院分区：
文献类型：
--
作者：
A. Munsi;A. J. Waddell;Colin Walker
以往的研究表明，焊接残余应力可以通过施加受控振动来降低。在本研究中，焊接试样被冷却到室温后，与不同的施加应力的振幅和振动的时间进行处理。施加应力的增加导致残余应力的显著降低。振动时间的影响被认为是非常小的较低范围内的施加应力（230 MPa），残余应力被发现重新分配随着振动时间的增加。结果表明，振动时效机理的能量概念没有得到验证。
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), 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.