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Recent content by HPedraza
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Bowing condition on large carbon fiber panel
the part is flat, the bow is not always the same. Tomorrow we'll try a new one part with a different profile and press. I'll let you know the results.- HPedraza
- Post #7
- Forum: Composite engineering
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Bowing condition on large carbon fiber panel
We lay up 3 plys of carbon fiber (45º-90º-90º), then put foam as core, next step is another 3 plys of carbon fiber (90º-90º-45º). The 45º plys are facing the suface of tool. We use a shrink coefficient, this is to compensate the spring in / spring back tool behaviour. About the pressure, I'm not...- HPedraza
- Post #5
- Forum: Composite engineering
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tooling material
Jenial: We made a wood tool (Mahogany). And when we made a vacuum bag process and the mold is working pretty good. I saw an MDF tool, but unfortunately when we aplly the vacuum the mold was broken. So, we don't use MDF for tool. Another option is Renshape, covered by an aluminum laminate. Also...- HPedraza
- Post #8
- Forum: Composite engineering
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Bowing condition on large carbon fiber panel
The panel thickness is 0.510". About the weave style, the information that I found is the following: Prepreg 200 GSM Carbon Fiber CF0302 2/2 Twill. The part has a foam core (Polyethermide). Could you clarify the unbalanced lay up? I'm not familiar with this process, but I want to learn more...- HPedraza
- Post #3
- Forum: Composite engineering
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Bowing condition on large carbon fiber panel
Hello: I have a problem with a large carbon fiber panel 61" x 30". The issue is the panel has a bowing condition (from 0.150" to 0.085"). However my tolerance is 0.030" maximum. We tried some different ways in order to reach at least the 0.030" in bowing condition. We use a compresion tool...- HPedraza
- Thread
- Replies: 6
- Forum: Composite engineering
