bonding metal to composites


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suman
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hi, 
 i am trying to attach hinges to carbon composite for Double Cantilever Beam specimen using adhesive. lot of them are failing. Please suggest any alternate ways
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Rich (Staff)
Rich (Staff)
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Hi suman,

What adhesive and process are you using presently to bond the hinges to the composite? Is the bond failing between the adhesive and the composite or the adhesive and the metal?


A good heavy key of the surfaces to be bonded as well as through cleaning/de-greasing to ensure there are no surface contaminants which could otherwise affect the bond should form a good basis for the adhesive. 
suman
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Rich (Staff) - 11/13/2017 1:08:20 PM
Hi suman,

What adhesive and process are you using presently to bond the hinges to the composite? Is the bond failing between the adhesive and the composite or the adhesive and the metal?


A good heavy key of the surfaces to be bonded as well as through cleaning/de-greasing to ensure there are no surface contaminants which could otherwise affect the bond should form a good basis for the adhesive. 

Hi Rich,
I am using araldite aw106+ hw 956 a two part adhesive system. I am  degreasing both the surfaces after filing the surfaces for roughness.  bond is failing between adhesive and hinge while conducting test for delamination. 

GO

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