振动时效消除构件残余应力的理论和方法

Vibratory Stress Relief(VSR) Theory and Applications on Eliminating the Residual Stress

目的 阐述了目前振动时效消除构件残余应力的机理和在实践中的应用方法 ,提出当前振动时效技术存在的问题和未来发展方向 .方法 结合当前的应用和实践 ,从宏观和微观上对其机理进行了阐述 ,并就目前的技术特点进行了分析 .结果 振动时效 ,实质上是金属材料内部晶体位错运动引起的 ,它在调整、均化、消除残余应力和提高构件抗疲劳和稳定尺寸方面有明显的效果 .结论 该技术实用性好 ,应用前景好 ,具有很好的经济和社会效益 ,但其机理和使用方法还必须完善 。

Aim To explain the principle of the VSR and describe the method of the VSR technology in the future. Methods On the basis of analysis of the VSR applications in using, the VSR technology is presented. Results Vibration aging is the process of dislocation, proliferation, staffing and winding. It has been used widely for eliminating or adjusting residual stress and maintaining mechanical size. Conclusion VSR technique can be used widely in the future. But the more efficient, more practicable model should be researched later.