titanium anodizing

Yes, it can be legal to make a silencer. For everything Form-1, from silencer designs that are easily made, to filing forms with the BATF, to 3D modeling. Remember, you must have an approved BATF Form-1 to make a silencer. All NFA laws apply.

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Dr.K
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titanium anodizing

Post by Dr.K » Wed Jun 04, 2014 1:28 am

Image

My first ever anodize. I stumbled across the heat anodizing procedure on the net, and figured it would pretty up my latest creation. I've got enough black cans, so I figured I'd give a go at some "modern art"

I kept it spinning on the lathe so as not to induce any warping, and used a map gas torch. Spinning it also serves to introduce oxygen into the hot metal so oxides can form. Otherwise you'd have to wave the torch around like mad....and I like the rings.
Kyle O.

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Bendersquint
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Re: titanium anodizing

Post by Bendersquint » Wed Jun 04, 2014 2:00 am

That is "flame anodizing".

Not recommended for anything requiring any strength as it damages the structure of the titanium.

Looks pretty on knives and pens and the sort but that should ever be done to a silencer tube!

I would use extreme caution when shooting that thing, BAD things can happen.

Why didn't you do voltage anodizing? It doesn't damage the metal.

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mx201er
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Re: titanium anodizing

Post by mx201er » Wed Jun 04, 2014 2:31 am

Looks neat! But I have no clue about the strength.
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Dr.K
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Re: titanium anodizing

Post by Dr.K » Wed Jun 04, 2014 3:07 am

Bendersquint wrote:That is "flame anodizing".

Not recommended for anything requiring any strength as it damages the structure of the titanium.

Looks pretty on knives and pens and the sort but that should ever be done to a silencer tube!

I would use extreme caution when shooting that thing, BAD things can happen.

Why didn't you do voltage anodizing? It doesn't damage the metal.
No worries, the spacers are the same wall thickness as the tube, and cover entire length. The tube doesn't see any direct blast.

The voltage anodizing doesn't offer the same look.

Have you actually seen a can damaged directly from this after firing?
Kyle O.

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Bendersquint
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Re: titanium anodizing

Post by Bendersquint » Wed Jun 04, 2014 9:41 am

Dr.K wrote: Have you actually seen a can damaged directly from this after firing?
Yes I have on multiple occasions. 1 of them the threads failed and blew the end off the can, another ruptured in the blast chamber and another ruptured injuring the shooter and a bystander. Calibers ranged from 9mm through 308.

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Dr.K
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Re: titanium anodizing

Post by Dr.K » Wed Jun 04, 2014 10:50 am

Bendersquint wrote:
Dr.K wrote: Have you actually seen a can damaged directly from this after firing?
Yes I have on multiple occasions. 1 of them the threads failed and blew the end off the can, another ruptured in the blast chamber and another ruptured injuring the shooter and a bystander. Calibers ranged from 9mm through 308.

Thanks for the heads up, I'll test it out later and report back.
Kyle O.

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Dr.K
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Re: titanium anodizing

Post by Dr.K » Wed Jun 04, 2014 1:33 pm

Image

Well, I dumped a mag thru it at a semi rate of fire. It didn't come apart, get loose, spontaneously combust, or otherwise die. Accurate, lightweight, and quiet, and it still looks cool to me. I'm heading to the engraver.


Bender, I'm curious if the cans that died also had other issues such as thin walls, or shitty thread jobs? Or, did they just over do the heat? Mine seems solid as it was.
Kyle O.

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Bendersquint
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Re: titanium anodizing

Post by Bendersquint » Wed Jun 04, 2014 1:44 pm

Dr.K wrote: Bender, I'm curious if the cans that died also had other issues such as thin walls, or shitty thread jobs? Or, did they just over do the heat? Mine seems solid as it was.
Nope, all were properly made.

2 F1's and a F4 can. 2 of the flame anodizing was done by professional services in controlled situations the third was a home jobbie like yours.

It not like you are going to be able to bend it in your hands, of course its going to seem as solid as it was.

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kingjamez
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Re: titanium anodizing

Post by kingjamez » Sun Jun 29, 2014 7:59 am

Bendersquint wrote:That is "flame anodizing".

Not recommended for anything requiring any strength as it damages the structure of the titanium.

Looks pretty on knives and pens and the sort but that should ever be done to a silencer tube!

I would use extreme caution when shooting that thing, BAD things can happen.

Why didn't you do voltage anodizing? It doesn't damage the metal.
Show me metallurgicaly how flame anodizing "damages the structure" of the titanium.

Flame anodizing doesn't even get the Ti above the stress relieving temperature (up to 649C for grade 9). The recommended cooling method for stress relief is air cooling. I'd wager heavily that Kyle air cooled the tube.

http://www.matweb.com/search/datasheett ... 687b46ee54
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john.t.little1
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Re: titanium anodizing

Post by john.t.little1 » Tue Jul 01, 2014 8:51 pm

Awesome job Dr. k don't worry we have titanium inside the engine bay on some of our aircraft that reaches high temps and "flame anodizes". What lathe do you have? Looks a lot like my Jet
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john.t.little1
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Re: titanium anodizing

Post by john.t.little1 » Tue Jul 01, 2014 8:51 pm

Again awesome
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Re: titanium anodizing

Post by joe0121 » Wed Jul 02, 2014 7:48 pm

I bet if I build my wife an 22LR AR she would be tinkled pink with a can anodized in that fashion. You could have also done about four mag dumps to get a similar result.

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Dr.K
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Re: titanium anodizing

Post by Dr.K » Wed Jul 02, 2014 8:28 pm

Can is still going strong.

Dropped this sow last night with 6 shots while she was on the run

Image


Oh, I have a grizzly 0709 lathe. I love it.
Kyle O.

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