Kevlar valve stem anyone?
I feel you Will. How the hell are you going to get Kevlar to that form...? Using the CNC Mill you can make a tool to mold the Kevlar onto or CF in that case...? Thats what the CNC can do. I have never heard of a machine that can create Kevlar into shapes...
You should look at Rapid Prototyping it in DMLS, maybe some cobalt chrome or stainless steel. Or you can do a quick mock up for cheap out of SLA.
Good pick up Mike. Yeah, someone would have to create a mold first and spend a lifetime trying to get kevlar to shape as I showed it. SolidWorks has a feature where you can choose diff materials, and BAM Kevlar valve stems haha.
I heard that Rapid prototyping is a popular program, next quarter in fact, I may be using that. There are some amazing things that you can do with these programs. I love being an ME major!
I heard that Rapid prototyping is a popular program, next quarter in fact, I may be using that. There are some amazing things that you can do with these programs. I love being an ME major!
I hope to never have to work with Kevlar ever again.....it is a nightmare to cut,and shape........you go through a lot of razor blades cutting it.....lol
And yes I am sure Will meant the CNC would be able to cut a mold with.....Will has all the fun tools.....I would love to have access to a mill again...ahhhh the billet parts I could cut and make a fortune doing so.....lol
And yes I am sure Will meant the CNC would be able to cut a mold with.....Will has all the fun tools.....I would love to have access to a mill again...ahhhh the billet parts I could cut and make a fortune doing so.....lol
When I was engineering and we first started getting in fiber optic cables that had Kevlar strength members in the sheath, it was amusing to watch the techs that didn't pay attention trying to cut Kevlar with diagonal cutters, knives, or scissors.

The cables looked like they had a layer of fine, smooth, silky blond hair just under the outer sheath all the way around. They'd cut the sheath back to where they wanted, then gather up all the "blond hair" and try to cut it, destroying their tools. That stuff is TOUGH!

We had special ceramic cutters for the Kevlar - worked great, but even the little scissors that looked like they belonged in a kindergarten class cost like a hundred bucks a pair.
I wonder where mine went? Last I saw those scissors my old business partner was playing with them... :?
http://www.amazon.com/Kyocera-Inch-I...TVQ/ref=sr_1_4
Tom
Last edited by Tomas; Oct 20, 2009 at 02:13 AM.
You know I wonder where my sissors went too for that.......they were spendy.........we also used scalpels they lasted for about 2 parts then were junk......all the stuff we did was prepreg too so it was a mess to try to shape and cut......i had nightmares for months.
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