Wind Energy Denmark October 26th€¦ · Wind Energy Denmark October 26th CEO: Klaus Bonde Ørskov. Vibratory Stress Relief (VSR) ... –Before welding –During welding

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 how it started!

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