Post on 04-Jun-2018
DAMRCDanish Advanced Manufacturing Research Centre
Wind Energy Denmark October 26th
CEO: Klaus Bonde Ørskov
Vibratory Stress Relief (VSR)
- a game changer?
• …We can relief residual stresses without heat treatment
• …We can Stress relief at a 10% of the current cost
• …We can conduct on site stress relief of LARGE components
• …We can reduce stress relief time up to 95%
Picture a world where….
This is what happens…
The equipment
• Accelerometer• Clamping• Exciter• Measurement and
exciter device.
The setup
The placement of the exciter will make a difference on the areas treated. So this process needs to be strategic.
– Prolong life time of molds
– Machining (process stability, quality, productivity)
– Before welding
– During welding
– After processing to prolong part life time
… and more…
Where to use VSR
1. 90% Less Weld Distortion
2. 95% Less Weld Cracking
3. 25% Faster Welding
4. 500% More Service Life
5. Less Scrap and Rework
6. 95% Less Weld Porosity
7. 65% Less Preheat Temperature
8. 400% Higher Ductility
9. Finer Weld Grain
An example – VSR benefits in welding
- It has been used by more than 1000 Chinese companies
- It has been used in the US since early 2000
- It is used for US-navy parts
- …and Denmark has been the Nordic hub for this technology since September 2015!
It’s not a fairytale…
Further Questions: Klaus Bonde Ørskov - kbo@damrc.com or +45 3051 6085
Thank you
for your attention