Stress Relief using Sub-Harmonic Vibration

• Jan 11, 2017

• #2

EdStainless

Materials

May 20, 2004

16,375

Waukesha WI USA

search the forums, this has been discussed.

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P.E. Metallurgy, Plymouth Tube

 

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• Jan 11, 2017

• #3

metengr

Materials

Oct 2, 2003

15,478

US

Not for pressure vessel or boiler code applications.

 

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• Jan 20, 2017

• #4

WKTaylor

Well-known member

Sep 24, 2001

4,331

US

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]
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• Jan 22, 2017

• #5

MikeHalloran

Mechanical

Aug 29, 2003

14,450

US

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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