Stress Relief using Sub-Harmonic Vibration

Question

Stress Relief using Sub-Harmonic Vibration

MatlsCorr (Materials)

(OP)

11 Jan 17 20:57

Is anyone familiar with this technique?

Thank You

EdStainless (Materials) · Answer 1 · 2017-01-11 21:01:53

search the forums, this has been discussed.

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P.E. Metallurgy, Plymouth Tube

metengr (Materials) · Answer 2 · 2017-01-12 00:21:59

Not for pressure vessel or boiler code applications.

WKTaylor (Aeronautics) · Answer 3 · 2017-01-20 22:01:31

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

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MikeHalloran (Mechanical) · Answer 4 · 2017-01-22 21:40:53

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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Stress Relief using Sub-Harmonic Vibration