Talk Composites - The Forum for Advanced Composites
Back
Login
Register
Login
Register
Home
»
Advanced Composites Forum
»
Mould Making
»
How would you mold this...?
How would you mold this...?
Post Reply
Like
3
1
2
3
4
5
Next
Jump To Page
How would you mold this...?
View
Flat Ascending
Flat Descending
Threaded
Options
Subscribe to topic
Print This Topic
Goto Topics Forum
Author
Message
Hanaldo
Hanaldo
posted 11 Years Ago
ANSWER
HOT
Post Details
Group: Forum Members
Posts: 2.5K,
Visits: 28K
Is that the infusion item or the pre-preg? Looks like you've put a layer of resin over the top?
Reply
Like
3
BlackNDecker
BlackNDecker
posted 11 Years Ago
ANSWER
HOT
Post Details
Group: Forum Members
Posts: 92,
Visits: 251
Reply
Like
2
asmasm
asmasm
posted 11 Years Ago
ANSWER
Post Details
Group: Forum Members
Posts: 15,
Visits: 189
Edit:
Never mind, I see you are only doing half the intake in carbon and leaving the OEM runner dimensions.
Edited
11 Years Ago by
asmasm
Reply
Like
1
BlackNDecker
BlackNDecker
posted 11 Years Ago
ANSWER
HOT
Post Details
Group: Forum Members
Posts: 92,
Visits: 251
asmasm (13/08/2014)
Shouldn't you be copying the internal surface of the original manifold and not the external surface?
No...because the OEM manifold was meant primarily to reduce sound and maximize economy.
Reply
Like
2
asmasm
asmasm
posted 11 Years Ago
ANSWER
HOT
Post Details
Group: Forum Members
Posts: 15,
Visits: 189
Shouldn't you be copying the internal surface of the original manifold and not the external surface?
Edited
11 Years Ago by
asmasm
Reply
Like
2
f1rob
f1rob
posted 11 Years Ago
ANSWER
Post Details
Group: Forum Members
Posts: 237,
Visits: 4.8K
Did you post cure your mould before you put the release on for the pre preg ?
You need to burn the styrene out,if not when you cure the styrene comes out on your first cure taking your release with it
Normal household oven is ok to cure for a cure on a item like this but if you were to do another you really need a separate internal bag joined onto your outer bag rather than trying to push your outer bag down into the mould
Reply
Like
1
ChrisR
ChrisR
posted 11 Years Ago
ANSWER
HOT
Post Details
Group: Forum Members
Posts: 363,
Visits: 3K
It's not surprising the bag burned through, your oven isn't really big enough for that size part and you shouldn't really rest it on a metal tray either as this may create a hot spot where it touches.
Is the oven you are using just a plain domestic oven or have you modified it so you can control the cure temp better? - prepregs require quite precise ramp rates and dwell periods to allow the resin to flow properly.
Reply
Like
2
Brian_s
Brian_s
posted 11 Years Ago
ANSWER
HOT
Post Details
Group: Forum Members
Posts: 99,
Visits: 2.5K
I read that it had burned through. But you had not mentioned that the bag went through the inside as it should. You may have just bagged the outside.
Brian.
Reply
Like
2
BlackNDecker
BlackNDecker
posted 11 Years Ago
ANSWER
HOT
Post Details
Group: Forum Members
Posts: 92,
Visits: 251
I did bag it and pulled the bag through the cavity. It's irrelevant though because the bag burned through in the oven and lost vacuum twice. I typed this out on the previous page. I lost vacuum twice because the bag burned through...the second time I even insulated it in wax paper and the bag still burned through.
Edited
11 Years Ago by
BlackNDecker
Reply
Like
2
Brian_s
Brian_s
posted 11 Years Ago
ANSWER
HOT
Post Details
Group: Forum Members
Posts: 99,
Visits: 2.5K
I have read your post and looked at the pictures. It does not say or show if you bagged through the cavity of your piece or not.
If you want help and advice you will find it helps to be curtious.
If you did not bag through the cavity there is nothing to compress your pre-preg, holding it in place and making the resin flow.
Brian.
Reply
Like
2
GO
Merge Selected
Merge into selected topic...
Merge into merge target...
Merge into a specific topic ID...
Open Merge
Post Reply
Like
3
1
2
3
4
5
Next
Jump To Page
Similar Topics
Post Quoted Reply
Reading This Topic
Login
Login
Remember Me
Reset Password
Resend Validation Email
Login
Facebook
Google
Explore
Messages
Mentions
Search