How to make carbon fiber octogonal pipe

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How to make carbon fiber octogonal pipe

How to make carbon fiber octogonal pipe

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macbar	m macbar posted 5 Years Ago HOT Topic Details
m Group: Forum Members Posts: 2, Visits: 19	Hi I need to make 50 cm long carbon fiber octagonal pipe 50mm flat-flat with wall thickness of 2mm, outside surface quality is important. Im looking for ideas how to make it. Currently the best solution i came with is to do vertical vacuum infusion with heat formed pvc pipe as outside mold. If you have any ideas, guidance please share.
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How to make carbon fiber octogonal pipe

macbar - 5 Years Ago

How many do you need to make? An alternative method would be to use prepreg and a standard domestic oven that can accommodate a 60cm (allowing for space to manoeuvre). Expensive if making just the...

Steve Broad - 5 Years Ago

Aluminium moulds and bladders will likely be quite an expensive way of doing it. Pre-preg is still a good option though but make the mould traditionally as a split mould, then basically follow the...

Warren (Staff) - 5 Years Ago

But how would you make a 'traditional split mould', out of fibreglass? If so, how do you make the pattern? Starts to get expensive and approaching the cost of just making an aluminium mould, IMO :-)....

Steve Broad - 5 Years Ago

I need only two. I would like to avoid prepreg as i dont have long enough oven. But i have access to wood grade cnc mil, how about mdf mould?

macbar - 5 Years Ago

It all depends on what you mean by 'outside surface finish is important' - MDF can get you shiny provided you want to do a little painting after. MDF will not have nearly the dimensional perfection o...

explorecomposites - 5 Years Ago

You guys must get aluminium a lot cheaper than we do in Aus. I've got prices on a few one-off machined moulds, and something this size you would be looking at AU$2000 minimum - IF the machine shops.....

Hanaldo - 5 Years Ago

AUS$2000 for a 500mm (less than 2 feet) aluminium mould? Crikey, it would be cheaper to get it made in the UK and shipped over :-) How would you make it?

Steve Broad - 5 Years Ago

Depends on the geometry. If it is a simple straight octagonal tube, then I'd just get some octagonal aluminium extrusion, split it with temporary barriers on opposing edges, and make the mould as per...

Hanaldo - 5 Years Ago

I can assure you Steve, if you can get propped aluminium for this tool for less than it would take to make a unimould tool, it has to be from an illegal source. And cnc tooling is only cheap if you.....

oekmont - 5 Years Ago

It's not what you know but who you know :-) I have my own 2.5 axis CNC machine so can do simple stuff. This machine has paid for itself may times over. Anything complicated and I go and see a guy who...

Steve Broad - 5 Years Ago

That is great price for nice mould...... perhaps you could offer ALU mould making service for the forum:)

beliblisk - 5 Years Ago

:-) Two reasons why not. 1. I didn't make this one. 2. I don't have enough time to do the stuff that I want!

Steve Broad - 5 Years Ago

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