Want to Make Aluminum Training Blade for Martial Arts

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Jun 9, 2014
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Hello, my name is Ernie.

I tried looking on Google for how to make a training blade out of aluminum but only got a few videos that weren't very detailed. I sort of have A.D.D. and reading is not my strong suit but Forums are great. Quick and to the point.

I know it might be cheaper if I bought them online. If I only needed 1-4 it'd be cheaper to buy. But more than 4, it might be cheaper to make. Just time is spent. But the feeling of making something is kind of cool to me.

I'd appreciate any and all help. I don't have many tools or any blacksmithing knowledge or any tool knowledge really. This will not be a full time thing or hobby. I will not be making real steel blades either.

So here are my questions.

I want to use Aluminum but which one is better: 6061-T6 or 7075-T6? I will be doing weapon on weapon contact. I chose aluminum because it's less dense (or heavy?), so it won't hurt as much if we hit the body. I saw a guy post a video of an Aluminum Training sword breaking up a cinder block! (Aluminum Swords vs Cinder block on Youtube) So it looks strong enough to me.

With 7075 aluminum there is like Clad or Bare. Which one should I get or should I just get 6061?

Does aluminum need to be heat treated? I don't think so but I'd thought I'd ask just in case. It'd probably melt right?

I read a bit online and saw some videos about knifemaking. But those were for actual blades vs training ones. Would the tools and process be the same?

For example the necessary tools are Jeweler's saw, crosscut (bastard?) file for fast metal removal, single cut file for finer removal, maybe a round file and small hobby files, wet/dry sandpaper, maybe a vise to hold and clamp the "knife" (Knife-like or sword-like object). Maybe some metal polish to make it shiny.

Am I missing any other tools? Any tool brand recommendations? I don't like the idea of crappy tools. I might make some more stuff I need down the line, you never know. I probably won't get any power tools to keep costs down as much as possible.

So the process is basically draw the shape.
Cut out as best as I can.
File down to actual shape.

If I want it to bevel? it (almost sharpen it, I guess to make it look more like a knife) I'd have to draw the line where I want it to start to slope or curve right? But I'd have to mark the Center of the edge side so both sides align correctly?.?
File again.

Then Sand as smooth as I can.
Polish.

If I want to add a cord wrap I'd have to make holes in the handle. Could I do that with a 12V cordless drill? I have titanium bits, would that go through aluminum? (I know these 2 are stupid questions but I really don't know).

Am I missing any steps?

Again, I'd appreciate any and all help. Thank you for your time!
 
I have some aluminum breaker bars that would make nice practice knives. You could buy some aluminum breaker bars (large thick ones) and take a 1inch or 3inch belt sander and cordless drill to them and make them look like anything you like for 10-15 dollars. About 4-5 dollars a piece. Just an idea
 
7075 is stronger. I would not bevel, keep the edge thick, less work, stronger for edge/edge impact and hurt a little less. Depends what the cladding is. Powder coating might not look bad, but it probably doesn't matter one way or the other for what you want. Do as little cutting as you can, aluminium is gummy to file and getting a smooth sanded finish on any more than the edges isn't worth the hassle if it started out with a rolled finish. Just bevel the edge a little to remove sharp corners.

I think you need a better saw. An 18tpi hacksaw, or a 14tpi bandsaw blade mounted in a bowsaw handle (old fashioned sort, with cord tensioner)

Aluminium comes ready heat treated. That is what the T6 refers to.
 
Gil Hibben made a shit load of aluminum blades to do some of the Rambo shows in Burma. Always hot, wet, etc.
Don't really know where you'd get info on them though.
Ken.
 
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