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Stress Relief using Sub-Harmonic Vibration

Stress Relief using Sub-Harmonic Vibration

Stress Relief using Sub-Harmonic Vibration

Is anyone familiar with this technique?

Thank You

RE: Stress Relief using Sub-Harmonic Vibration

search the forums, this has been discussed.

= = = = = = = = = = = = = = = = = = = =
P.E. Metallurgy, Plymouth Tube

RE: Stress Relief using Sub-Harmonic Vibration

Not for pressure vessel or boiler code applications.

RE: Stress Relief using Sub-Harmonic Vibration

Not for use on aerospace parts... not enough value-added.

Vibratory peening is effective and useful in certain circumstances. See...

AMS2580 Shot Peening, Ultrasonically Activated

AMS2585 Shot Peening Media, Ultrasonically Activated

Regards, Wil Taylor

o Trust - But Verify!
o We believe to be true what we prefer to be true. [Unknown]
o For those who believe, no proof is required; for those who cannot believe, no proof is possible. [variation,Stuart Chase]
o Unfortunately, in science what You 'believe' is irrelevant. ["Orion", Homebuiltairplanes.com forum]

RE: Stress Relief using Sub-Harmonic Vibration

I've seen a 'peening gun' (basically a needle scaler with blunt needles), used to remove welding distortion in complex steel weldments.

It's skill-intensive but effective.

I wouldn't call it stress relief, because it doesn't relax locked-in stresses, it just offsets them with new local compressive stresses.

Mike Halloran
Pembroke Pines, FL, USA

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