Experimental Study of the Influence of a Trailing Heat Sink on the Welding Residual Stress Distribution

Abstract:

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It has been shown that the introduction of a trailing heat sink following a welding heat source at a short distance can reduce or even eliminate the buckling deformation of welded thin plate structures. To increase the insight into the stress development during welding with a trailing heat sink, residual stress measurements were carried out by means of laboratory X-ray and synchrotron X-ray diffraction techniques. Both the laboratory X-ray and the synchrotron X-ray experiments show a difference between the residual stress distributions for the cooled and the uncooled samples. The longitudinal stresses show a reduction in the compressive stress level towards the plate edges, to a level below the critical buckling stress. The transverse stresses are drastically reduced when the active cooling is applied.

Info:

Periodical:

Materials Science Forum (Volumes 524-525)

Edited by:

W. Reimers and S. Quander

Pages:

479-484

DOI:

10.4028/www.scientific.net/MSF.524-525.479

Citation:

E.M. van der Aa et al., "Experimental Study of the Influence of a Trailing Heat Sink on the Welding Residual Stress Distribution", Materials Science Forum, Vols. 524-525, pp. 479-484, 2006

Online since:

September 2006

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Price:

$35.00

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