Positioning vacuum & infusion ports on a large bonnet


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stuart321
stuart321
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Hi - I have a large bonnet mould and wanted to check my thinking on positioning ports and spiral before infusing this for the first time.
It is 1.3m x 1.1m and the layup is 200gsm CF, 295gsm CF, 2mm soric (2 layers selectively used), CF reinforcing round edges and over the soric, 295gsm CF.
I was proposing to put 1 inlet centrally at the front and 2 vac ports on the 'ears' of the bonnet at the back.
I'm expecting the soric will help the infusion and it will have spiral + mesh.
Does this look a sensible approach?
Any changes you would suggest on placement?
(I know its quite a thin stack but its on a rallycar with 4 bonnet pins and we've run some really flimsy GFRP versions before so not concerned on that front).

Thanks
Stuart

http://i1064.photobucket.com/albums/u379/sideways_stu/bonnetinfusionlayoutlowres.jpg

http://i1064.photobucket.com/albums/u379/sideways_stu/bonnetsoriclayoutlowres.jpg
Kevin-Lee
Kevin-Lee
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Hi Stuart,

Maybe try this...

http://www.talkcomposites.com/Uploads/Images/c6892cb6-a053-4380-9f8d-10b1.jpg

Yellow dot = Vac.
Purple dot = Resin Feed.
Red Line = Spiral.

Kev.
Matthieu Libeert
Matthieu Libeert
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I suppose you've already seen the great video of Easycomposites making a Carbonfiber Bonnet?





this video can solve all your questions

Matthieu Libeert
Founder MAT2 Composites X Sports
website:
www.mat2composites.com




stuart321
stuart321
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Kev - thanks that looks like a good way to ensure the ears of the bonnet are properly infused.

Matthieu - thanks for the pointer, yes I've watched that - the EC guys make it look so easy don't they!

Stuart
Matthieu Libeert
Matthieu Libeert
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Why they make it look so easy, is because they are well prepared I guess Smile
When you start a project, make sure you work in a good and clean environment and that everything is ready to use. 

good luck with your project Wink

Matthieu Libeert
Founder MAT2 Composites X Sports
website:
www.mat2composites.com




baja_patient
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What kevin posted looks good, possibly with some spiral wrap for the vac side too, in the same way as the spiral for the feed, just mirrored.

Alternatively, vac spiral all the way round and resin feed in the center.

cheers, good luck
GO

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