carbon-fiber composite blades

wnease

wnease

Joined
Apr 22, 2004
Messages
878
I rarely see tests of these and I recently started fooling with a new bonding method using billet CF (previously I laminated cf or glass cloth around a M2 steel edge/core). Usually these blades are not used or only used very lightly, but I wanted to see what would happen if I subjected one to what I would use a steel bushcraft knife for.

Time to see how it does!

http://youtu.be/1KUL6Co_n5o



I'm not saying the way/s I bond metal to composite is/are best... but they seem to work. You can see the Ti actually suffered ductile failure at about the same time as the tip delaminated. My new method saves me about 75% of the time it takes me to make composite blades! My earlier method is still probably better but how much?

Here's a test of my earlier style and method http://www.youtube.com/watch?v=aBmw37WB9aA
 
I'd be interested what you end up with in the end of the trials and research. It'd be cool I bet
 
I re-laminated that blade and fired a few screws through... should help in both shear and tension but I don't much like my screw placement!


glassti.jpg
 
Looks odd but for penetration, the two towards the end will help. Maybe they should be more spaced? Are they countersunk?
 
I counterbored them flush. Wasn't really thinking when I ran the drill in near the tip, just getting 'er done! In future I'll make the screws part of the design if I use screws. Still not convinced it's that important... I can provide a prybar separate from the ultralight knife... hmmmn, maybe the sheath can be a carbon fiber prybar...

Actually a flared tube fastener near the tip would look cool... sort of like a deadly sewing awl! Wish I'd thought of that earlier. Coming soon.
 
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