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morepower
morepower
posted 8 Years Ago
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So I am doing my first real pre-preg tool. The mould I had made for me has had issues........ loads of stress cracks appeared after only a couple of pulls.. Not looking for answers or reasons why that mould has had issues. I got so pissed off that I looked into a dozen different things and all I got was dizzy with each person giving me a different reason. So I took one I had made and lacquered it to get a good finish and to remove some of the raised areas where the original stickers got left on the tank when it was moulded. I put it back into the mould and have started to remake the mould using pre-preg carbon tooling. So far it seems to be working.. I have done the top section already and although I have not removed the section from the part the flange areas look perfect and if the rest of the mould comes out the same way I will be happy. Having had numerous quotes to remake the mould for me including a quote from the person who made it in the first place (he seems to feel it is other reasons and not his work that has caused the problem). I have bit the bullet with some Tooling from SHD.
I will post updates as I go and hopefully in a few days will have a finished working full carbon pre-preg mould.
This is all I can see of the top section at the moment but it has no issues on the edge and looks like the resin has flowed correctly.
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f1rob
f1rob
posted 8 Years Ago
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DONT cut the 1st ply into the corners ! Not if you want a mould to last.
If you don't 45 strip in the corners do what they do at Williams and take your 1st part of the ply into the corner and 5mm onto the other face.
then when you do the other face butt that into the corner.
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Tooling.......
morepower
-
8 Years Ago
What layup you doing as it doesn't look like a 1-8-1 ? what's the thinking behind the peel...
f1rob
-
8 Years Ago
[quote][b]f1rob (11/01/2016)[/b][hr]What layup you doing as it doesn't look like a 1-8-1 ? what's...
morepower
-
8 Years Ago
1-4-1 is very lightweight 1-8-1 is industry standard 20 plus years only ever going up I.e 1-10 or...
f1rob
-
8 Years Ago
[quote][b]f1rob (11/01/2016)[/b][hr]1-4-1 is very lightweight 1-8-1 is industry standard 20 plus...
morepower
-
8 Years Ago
DONT cut the 1st ply into the corners ! Not if you want a mould to last. If you don't 45 strip in...
f1rob
-
8 Years Ago
DONT cut the 1st ply into the corners ! Not if you want a mould to last. If you don't 45 strip in...
f1rob
-
8 Years Ago
DONT cut the 1st ply into the corners ! Not if you want a mould to last. If you don't 45 strip in...
f1rob
-
8 Years Ago
I did cut into the corner then overlay from the flange up onto the part face about 5mm to 8mm as...
morepower
-
8 Years Ago
SHD,s owners all come from ACG (now cytec)all the many data sheets they produced over the last 20/25...
f1rob
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8 Years Ago
I dont know Paul sadly.. I may have spoken to him. But I know Carl quite well as well as Glen and...
morepower
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8 Years Ago
Just done the second section, the side. I did take this off the master to have a look and see how...
morepower
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8 Years Ago
Almost done.. Only two small sections left to do... So far it seems to be strong and quite easy to...
morepower
-
8 Years Ago
coming along nicely mate, prepreg tooling is fun to work with on big projects :)
scottracing
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8 Years Ago
[quote][b]scottracing (18/01/2016)[/b][hr]coming along nicely mate, prepreg tooling is fun to work...
morepower
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8 Years Ago
Speaking from a business point of view though, I never charge my customers cost price for the...
Hanaldo
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8 Years Ago
[quote][b]Hanaldo (19/01/2016)[/b][hr]Speaking from a business point of view though, I never charge...
morepower
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8 Years Ago
Yeh fair enough, I do try to support my customers when something goes wrong. You would hope that...
Hanaldo
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8 Years Ago
Exactly..... If he felt bad and was doing a new mould at a good price especially as he had not fixed...
morepower
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8 Years Ago
Done... Just going through post curing now and then loads of sealer and release......
morepower
-
8 Years Ago
Another mould that cracked so I had to make a new mould. I have had enough of the wet lay moulds I...
morepower
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8 Years Ago
It could be the moulds cooling as someone said? I have done lots of pre preg parts from wet laid...
Fasta
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8 Years Ago
[quote][b]Fasta (07/03/2016)[/b][hr]It could be the moulds cooling as someone said? I have done...
morepower
-
8 Years Ago
Hi buddy,I am from China, I like Honda motorcycle, Indonesian the latest new Honda CBR250RR, I plan...
Asurada
-
7 Years Ago
If you use a phenol novolac epoxy to coat the insides of the tank then you won't have any problems...
Hanaldo
-
7 Years Ago
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