How to project templates of carbon fiber for complicated surface?

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How to project templates of carbon fiber for complicated surface?

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rhcp89	rhcp89 posted 11 Years Ago HOT Topic Details
Group: Forum Members Posts: 5, Visits: 45	Hello, I'm studying on technical university and my job is to project (to model) the way the carbon fiber has to be put in mould which will be the negative of car body. In brief, my work will be used to create a body of a car of composites. The problem is that the car body must be made of aerodynamic ,continuous shapes (no low-radius edges) so when the composite will be put then the unwanted folds may appear or that fiber will have to be cut in some places. I have no such an opportunity to make mould first and then put fiber on it as a test and given this, determine the way the templates should look like experimentally . I have to do it the other way round- I have to predict the shape of these templates given the 3d cad model of car body first. So I would like to know are there any books, articles, methods etc, which tell how to cut that carbon templates for a given surface? Maybe there some graphics which say how to determine the shape of these templates or software(I could import 3d model there)? Thank you,
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scottracing	scottracing posted 11 Years Ago HOT Post Details
Group: Forum Members Posts: 460, Visits: 5.2K	what cad software are you using? in catia you can flatten a compex curved surface using the applicable toolbar. Otherwise its quite a complex way to create a ply shape as they are always cut on 2d table cutters. Plus when laying up by hand if you have no ply kit then you use masking tape and card to produce templates to cut the carbon in the correct orientation. I would see what software you can get hold of but Catia and Fibersim are the two mainly used softwares used.
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rhcp89	rhcp89 posted 11 Years Ago HOT Post Details
Group: Forum Members Posts: 5, Visits: 45	Hi My main cad software I use is Solid Edge ST6, but I also have Creo 2(I know it at the basic level) and from tomorrow I probably will be having Solidworks 2014/15- I have never had any hands on experience with that. What do you mean that Catia can flatten the curved surface? (a bowl as an reference to my car body) 1.Is it:- curved surface is represented by triangles, and then is converted to: -so we have a net as flat surface 2.or: -the bowl is laid up with a plain weave fiber, so touches the curvature of a bowl just fine except for this one big wrinkle. I would model this fiber in Catia or other CAD program as a surface of that bowl with one long cut(it would replace that big wrinkle) And then:-this the flat surface after the bowl was removed. So of course I would like to get a flat surface as 2nd example.Simple I dont want any net. Does Catia can do something like that? Tags planning lay up
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