Proposed Simple Determination Method for Welding Condition of Joint from Fatigue Limit Characteristics (1st Report: Application to TIG-Butt-Joint of Non-combustible Mg Alloy)

Shigeru HAMADA; Taka-aki KAWAZOE; Komei HAYASHI; Harumi MORITA; Mitsuji UEDA; Michiru SAKAMOTO; Hiroshi NOGUCHI

doi:10.1299/jmmp.5.409

Papers

Proposed Simple Determination Method for Welding Condition of Joint from Fatigue Limit Characteristics

(1st Report: Application to TIG-Butt-Joint of Non-combustible Mg Alloy)

Shigeru HAMADA, Taka-aki KAWAZOE, Komei HAYASHI, Harumi MORITA, Mitsuji UEDA, Michiru SAKAMOTO, Hiroshi NOGUCHI

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Keywords: Fatigue, Fatigue Limit, Welded Joint, Non-Combustible Magnesium Alloy, Robustness

JOURNAL FREE ACCESS

2011 Volume 5 Issue 8 Pages 409-424

DOI https://doi.org/10.1299/jmmp.5.409

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Abstract

The non-combustible Mg alloy is useful as a structural material because of its high specific strength and high ignition point, but its suitable welding conditions have not been established for manufacturing floors. In this study, a simple evaluation method for the fatigue limit characteristics of a welded joint was proposed using the edge shape of the welding bead geometry, the internal defect size and the material characteristics. Moreover, the welding condition parameter ranges to insure a stable fatigue limit for the TIG butt joint of a non-combustible Mg alloy were proposed using this method.

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