Nice video that demonstrates how 3D weaving and 3D woven preforms are created.
[ame=“http://www.youtube.com/watch?v=47-uDN9JgPE”]Makiko Tada’s 3D Kumihimo Machine - YouTube[/ame]
Another good one that shows how Merc makes the crash cones for the SLR.
[ame=“http://www.youtube.com/watch?v=Omz2H1tHbQw&feature=related”]Core braiding - YouTube[/ame]
Enjoy!
edit: why don’t these show up like all my old videos did with the window to watch them in on this site instead of having to leave?
[ame=“http://www.youtube.com/watch?v=Omz2H1tHbQw”]Core braiding - YouTube[/ame]
Ah, one of my customers. Dutch Technology, guys! Really nice product.
Rotorage, strip the youtube URL from the related bit, and also change https into http.
Thanks Herman I knew there was some reason it wasn’t working.
Have you ever toured their facilty? I’m sure they are some world class fabricators if Merc trusts them.
this is my test of preform
preform is a test with 2x 600 gr fibre, the other final part is made with 200+385+416 carbon
very cool video, I saw a while ago this technology on youtube…in my opinion, I am increasingly convinced that autoclave technology will be replace by preform + rtm/rtml/infusion or forged.
Their offices are in an almost defunct office building which will be broken down. The weaving facility is nice, but not theirs. After weaving-braiding, it needs to be impregnated with epoxy, which is simply done by hand. They were looking for someone else to do it.
Herman, impregnated by hand? I thought by RTM process
They are working on that.
Thats a really nice finish! So basically instead of laying the CF in a female you are laying it up backwards over a male? Is this Closed RTM?
I use a different mold to do preform and to glue the different layers together.
For the moment I use resin infusion,I’m trying RTML and just I find the material, with infusion with silicone bag
:eek:
Not what I expected to here…
do you trim the carbon before impregnating with resin or do you do your trimming at the end?
What do you use to trim?
looks great!
It shows that with a bit of brains, and relatively good organisation, you do not need fancy buildings or other periferal stuff. All their money goes into development, so their financial efficiency must be high.
If they can continue their development, I think they will be able to raise a company that will bring composites a small step further.
I trim approximately before dry fiber with a scissor, at the end whit a fein electric cutter
anyone knows an heat activate spray glue? I search a glue that don’t stick, but stick and glue after applying heat
Hot melt glue. For instance VacTac100 (Brands Structural Products). Can be sprayed (hot). Will remelt at heat.
Can someone explain this process a little bit for me?
So from what I get, you have two molds, one for the preform and one for the actual piece. You take your laminate stack lay it up dry in your preform mold and then squash it all togther? Then you take that, put it into your final mold and infuse?
Im assuming this is done to save on labor costs? Any other advantages?
thanks Herman, I have find this
http://www.vac-tac.com/video.html
but it’s not what I’m looking. I’m looking a sprye cold glue, that don’t stick after being sprayed, and stick after with heat. I want to use it for my preform test for complex shape
If you’re referring to me, yes, it’s to save time and do a better work. If I don’t use gel coat, I can’t glue the fibre into the mold surface, so the fibre are free to move, and corners can be difficult. Also if the fibre are preformed, no need to press the fibers in the corners when I do resin infusion, because fiber have the right form