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本文介绍了高强钢挂货钩(焊接件)的振动时效处理试验及结果。指出,通过振动时效处理,焊接接头的机械性能有所提高,焊缝金属的疲劳裂纹扩展速率有所减小,焊接残余应力可降低30％以上。
This article describes the high strength steel hook (welded parts) vibration aging test and results. It is pointed out that the mechanical properties of welded joints are improved by vibration aging treatment, the fatigue crack growth rate of weld metal is reduced and the residual stress of welding can be reduced by more than 30%.