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TECHNICAL PAPERS

Residual Stress Reduction and Fatigue Strength Improvement by Controlling Welding Pass Sequences

[+] Author and Article Information
Masahito Mochizuki

Department of Manufacturing Science, Osaka University, Suita, Osaka 565-0871, Japan e-mail: mmochi@mapse.eng.osaka-u.ac.jp

Toshio Hattori

Hitachi, Ltd., Tsuchiura, Ibaraki 300-0013, Japan

Kimiaki Nakakado

Hitachi Construction Machinery Co., Ltd., Tsuchiura, Ibaraki 300-0013, Japan

J. Eng. Mater. Technol 122(1), 108-112 (Jun 28, 1999) (5 pages) doi:10.1115/1.482779 History: Received September 17, 1998; Revised June 28, 1999
Copyright © 2000 by ASME
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References

Figures

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Configurations of a multi-pass fillet weld joint (Units: mm)
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Sequences of welding pass in multi-pass fillet weld joints
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Comparison of residual stress in a multi-pass fillet weld joint (last pass on the attachment)
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Comparison of residual stress in a multi-pass fillet weld joint (last pass on the main plate)
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History of residual stress at the weld toe in a multi-pass fillet weld joints by multipass welding (last pass on the attachment)
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History of residual stress at the weld toe in a multi-pass fillet weld joint by multipass welding (last pass on the main plate)
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Relation between nominal stress range and fatigue life in multi-pass fillet weld joints
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Residual stress relaxation by stress cycles at the weld toe in a multi-pass fillet weld joint (last pass on the attachment)
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Residual stress relaxation by stress cycles at the weld toe in a multi-pass fillet weld joint (last pass on the main plate)
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Effect of residual stress on fatigue strength in multi-pass fillet weld joints using a modified Goodman diagram

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