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Windtech International January February 2024 issue

 

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Two years ago, Pontis Engineering introduced a new welding solution for fully thermoplastic rotor blades. The engineering company has now found a welding solution that can be used in existing epoxy designs.
 
Pontis Engineering has developed a technology in which prefab thermoplastic welding units are implemented in the epoxy shell. These units not only enable a welded connection, but also enable that a sharper trailing edge and a more compact connection can be realised.In conventional rotor blade production bonding paste is commonly used. Pontis applied its new construction method to a test blade component and found a number of significant advantages, including: 
  • Increased reliability
  • Reduced cycle time for bonding operation (up to 90%)
  • Reduced total workload (app. 5%)
  • Increased bond strength 
  • Reduced blade mass (app. 3-5%)
 
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