What is the principle of vibration stress elimination method is to remove the aluminum sheet?
In addition, after the aluminum alloy member VSR after having good dimensional stability during subsequent machining process is not easy deformation. But the mechanism of VSR process is not sufficient, it applies to domestic and international aluminum structure of the suitability also in dispute.
Vibration stress relief (VSR) technology with high efficiency, simple process, applicability, and other characteristics, there is no restriction on the shape and size of the parts, especially for large and complex structure, the process is a promising method.
Existing relevant studies indicate that when aluminum was in an unstable state just after quenching (within 0-2 hours) to eliminate vibration, best, maximum residual stress can be reduced 50-70%; if placed after quenching after 360 hours VSR test, the residual stress can eliminate 10% -20%.
Vibration to eliminate residual stress method works is a powerful portable vibrator, the metal structure to produce one or more vibrational state, thereby elastically deformed as mechanical loading, so that some parts of the inner parts of the residual stress and vibration load superposition after exceeding the yield stress of the material caused by plastic strain, causing reduce stress and redistribution.
