Reduction of Residual Stress of Welded Joint Using Ultrasonic Vibration

被引：0

作者：

Aoki, Shigeru ^{[1
]}

Nishimura, Tadashi ^{[2
]}

Hiroi, Tetsumaro ^{[1
]}

Hirai, Seiji ^{[3
]}

机构：

[1] Tokyo Metropolitan Coll Technol, Dept Mech Engn, Shinagawa Ku, Tokyo 1400011, Japan

[2] Tokyo Metropolitan Coll Technol, Dept Syst Prod Engn, Shinagawa Ku, Tokyo 1400011, Japan

[3] Inst Technologists, Fac Technologist, Dept Mfg Technologist, Gyoda City, Saitama Pref 3610038, Japan

来源：

ADVANCES IN VIBRATION ENGINEERING | 2008年 / 7卷 / 02期

关键词：

Welding; Residual stress; Ultrasonic vibration; X-ray diffraction method; Plastic deformation;

D O I：

暂无

中图分类号：

TH [机械、仪表工业];

学科分类号：

0802 ;

摘要：

Welding is widely used for construction of many structures. It is well known that residual stress is formed on welded joints. Tensile residual stress on the surface degrades fatigue strength. Some methods for reduction of residual stress such as heat treatment and peening are used. In this paper, a new method for reduction of residual stress is proposed. In this method, ultrasonic vibration is used during welding. First, the reduction in residual stress is examined by simulation using an analytical model. From the simulation, it is demonstrated how tensile residual stresses near the bead are reduced when ultrasonic vibration is used during welding. Next, the proposed method is examined experimentally. Two thin plates are butt-welded using ultrasonic vibration during welding. When ultrasonic vibration is used during welding, tensile residual stress is reduced near the bead.

引用

页码：207 / 215

页数：9

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