Duble bag infiusion process


Duble bag infiusion process
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Classicarbon
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Classicarbon
posted 5 Years Ago HOT
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berndhac
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berndhac
posted 5 Years Ago HOT
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Hi,
in Wind Industry  rotorblade production this is quite common as well.

BR
Bernd
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Hojo
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Hojo
posted 5 Years Ago HOT
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berndhac - 2/4/2020 1:29:55 PM
Hi,
in Wind Industry  rotorblade production this is quite common as well.

BR
Bernd


Yes, as well as making large tools such for wind blade tooling (I was previously R&D/Process manager for Gurit Tooling). Double bagging is important to lower the risk of a failed infusion. The cost to double bag vs losing a full blade or mould justifies this.
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Duble bag infiusion process
Classicarbon - 5 Years Ago
     Classic article, but too many people misunderstanding the physics of double vacuum bagging and the main purpose. Unfortunately you cannot have the inner bag at a reduced vacuum level, and have the...
hojo - 5 Years Ago
     Exactly ^ I'm yet to believe this is anything more than 'snake oil'. Totally understand it increases vacuum integrity, and so I can see why companies like Boeing use it because as Hojo said it...
Hanaldo - 5 Years Ago
     Hi, in Wind Industry rotorblade production this is quite common as well. BR Bernd
berndhac - 5 Years Ago
             Yes, as well as making large tools such for wind blade tooling (I was previously R&D/Process manager for Gurit Tooling). Double bagging is important to lower the risk of a failed infusion. The cost t...
hojo - 5 Years Ago
     There's got to be something there besides just safety and redundancy - but I'm not sure what it is. It keeps coming back around too much for something completely bogus! I know it is possible to push....
explorecomposites - 5 Years Ago
     Hi, there is no way how a vacuum betweeen two plasic sheets can improve anything but process safety. Just imagine what happens, when there is no inner vacuum but only the outer vacuum between the two...
berndhac - 5 Years Ago
     First, Hi Howard! Second, there is a very informative thread in another composite forum. Double bag is only for process stability and nothing more. The reason for double bagging is to creat during an...
DD-Compound - 5 Years Ago
             Hey Dominik!, Good to see you here!
hojo - 5 Years Ago

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