Cut and lay carbon fabric


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Massimiliano
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Hi, I would like to infuse the attached mold with carbon fiber, several layers of 380 gsm 12k twill carbon.
What is the best way to cut the fabric and place in the mold, also to avoid tows separation at the edges?



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Lester Populaire
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Massimiliano - 1/5/2021 7:36:40 AM
So I did it and I am not dissatisfied with the result.
I have given a try to the MTI hose and very happy with it, but the resin inlet spiral left a bad print on the part: seems like the carbon under the spiral is more compacted than the rest. And the immediate surrounding of the spiral is a little raised.
Talking about a fraction of millimeter, but still very visible.
How can I prevent this in the future?



Make sure you have enough bag above the spiral hose, then once the infusion is finished you pull the hose up into the fold of the vacuum bag.
Either that or infuse from side to side if the geometry and part size allows for this.

Massimiliano
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Lester Populaire - 1/5/2021 2:35:22 PM
Massimiliano - 1/5/2021 7:36:40 AM
So I did it and I am not dissatisfied with the result.
I have given a try to the MTI hose and very happy with it, but the resin inlet spiral left a bad print on the part: seems like the carbon under the spiral is more compacted than the rest. And the immediate surrounding of the spiral is a little raised.
Talking about a fraction of millimeter, but still very visible.
How can I prevent this in the future?



Make sure you have enough bag above the spiral hose, then once the infusion is finished you pull the hose up into the fold of the vacuum bag.
Either that or infuse from side to side if the geometry and part size allows for this.

Thank you!
I will try the fold suggestion as mti videos suggest to place the mti hose all around the part (see the white line in my pic) and place the resin inlet in the middle.

GO

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