焊接残余应力对疲劳强度的影响及改善
Effect of Welding Residual Stress on Fatigue Strength and Its Improvement
黄向红
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作者单位：四川机电职业技术学院 机械系，四川 攀枝花 617000
中文关键字：焊接残余应力； 疲劳强度； 改善措施
英文关键字：welding residual stress； fatigue strength； improvement measures
中文摘要：通过分析和试验举例说明了焊接残余应力对焊接接头疲劳强度的影响。为了保证焊接结构可靠性，应采取措施改善和提高焊接接头的疲劳强度。
英文摘要：The effect of welding residual stress on the fatique strength of welded joints was analyzed through the testing. In order to guarantee the reliability of weld structure, some measures should be taken to improve the fatigue strength of the welded joints.