ISIJ International
Online ISSN : 1347-5460
Print ISSN : 0915-1559
ISSN-L : 0915-1559
Regular Article
Comparative Study on Internal Residual Stresses in Electron Beam Welds
Takuya NagaiShinji KawaiMasatoshi ShindoShigetaka OkanoMasahito MochizukiTetsuo Suga
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2017 Volume 57 Issue 6 Pages 1072-1079

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Abstract

For electron beam welded joints of sheet metal with a thickness of approx. 10 mm, the distribution morphology of the internal residual stresses in the weld was researched. The residual stress distributions were measured by the strain gauge method and the Modified Deep Hole Drilling Technique (MIRS method) and were analyzed by the finite element method. Consequently, the residual stresses in the longitudinal and transverse directions of the weld were tension near the center of the plate thickness and tended to become compression as the location of stress shifted towards the top and bottom surfaces. The mechanism of such a particular profile of residual stress distribution can be considered peculiar to electron beam welding.

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© 2017 by The Iron and Steel Institute of Japan
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