3-D sandwich preforms and a method to provide the same

   
   

The present invention describes 3-D woven structures including two woven fabric layers and uniting yarns between the layers whereby the uniting yarns may have any angle with respect to the fabric. Methods of manufacture of these structures are described.

A invenção atual descreve estruturas tecidas 3-D including duas camadas tecidas da tela e fios unindo-se entre as camadas por meio de que os fios se unindo podem ter todo o ângulo com respeito à tela. Os métodos da manufatura destas estruturas são descritos.

 
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