What did you do at work today?

[Kyle_in_Tex]

Interesting project! Share more and/or start a thread on this if you can!

I'm actually not sure how it will turn out. I don't know how much it might warp if I get it too hot. The plates are 1/8" thick pure grade 2 Ti. It welds like butter. I just wanted to try it and be different.

I looked for titanium fire pits prior to making this. The main thing that comes up is a lightweight, small folding device, designed for a backpack hiker.

I know they use titanium for the SR 71 skin, to take the heat, but probably the Ti6Al4v alloy.

I designed it up in Cad, from something I saw and now I can't seem to find it. Original design I had incorporated a slit at the bottom of the V for drainage and breathing (hotter fire), but I decided that since it is so light, I can just tump it over to drain and clean it. I will add some holes to the legs, that will be rather simple, to mount a bushing and a pole for a grate.

By the time I finish it, our cool weather will be gone.

One thing I learned about titanium grade 2, you need either carbide tipped sawblade, or a crate of replacements. I ended up cutting the end triangles on the mill with coolant and a 1/8" endmill. Light depth of cuts, no big hurry.

 

[dragoneggs]

I'm actually not sure how it will turn out. I don't know how much it might warp if I get it too hot. The plates are 1/8" thick pure grade 2 Ti. It welds like butter. I just wanted to try it and be different.

I looked for titanium fire pits prior to making this. The main thing that comes up is a lightweight, small folding device, designed for a backpack hiker.

I know they use titanium for the SR 71 skin, to take the heat, but probably the Ti6Al4v alloy.

I designed it up in Cad, from something I saw and now I can't seem to find it. Original design I had incorporated a slit at the bottom of the V for drainage and breathing (hotter fire), but I decided that since it is so light, I can just tump it over to drain and clean it. I will add some holes to the legs, that will be rather simple, to mount a bushing and a pole for a grate.

By the time I finish it, our cool weather will be gone.

One thing I learned about titanium grade 2, you need either carbide tipped sawblade, or a crate of replacements. I ended up cutting the end triangles on the mill with coolant and a 1/8" endmill. Light depth of cuts, no big hurry.

What are you welding with?

 

[Kyle_in_Tex]

Miller Synchrowave 250 with the water cooled torch and foot control. It was the first time in 9 years that I actually ran it hard enough for it's cooling temp fan to kick into high.

I ran the Argon a bit on high side. I did not purge the backside. I actually wanted the purple lines from welding as a decorative thing.

 

[Oldpath05]

I didn't think titanium will withstand much heat before melting, thought maybe little more than aluminum.

 

[Kyle_in_Tex]

I didn't think titanium will withstand much heat before melting, thought maybe little more than aluminum.

The specs say it liquefies at 3030F. I don't actually know how it will hold up to fire pit usage.

 

[dragoneggs]

I didn't think titanium will withstand much heat before melting, thought maybe little more than aluminum.

Nope... service temperature of Titanium is about 3 times higher than Aluminum!

 

[Kyle_in_Tex]

I am still doing my work thing. We, the whole refinery are getting ready to start back up. Had some crude issues beyond our control. This picture is my control board. The PC is currently on the TBN site doing this posting.:laughing:View attachment 499074

Man, when does the rocket take off?

 

[dragoneggs]

I thought this was a very good starter summary on welding Ti.

Titanium 11: Best TIG (GTA) Welding Practices - MillerWelds

 

[Kyle_in_Tex]

I thought this was a very good starter summary on welding Ti.

Titanium 11: Best TIG (GTA) Welding Practices - MillerWelds

Good article. Thanks. I knew the oxidation coloring is bad for real parts that matter. You have to shield the front and back and make short welds if you are welding something serious.

 

[Oldpath05]

I thought this was a very good starter summary on welding Ti.

Titanium 11: Best TIG (GTA) Welding Practices - MillerWelds

There's more to welding titanium then I thought, clean this an that over and over, dont use die grinder on anything else when welding titanium, gas coverage etc, no 6011 welding here........

 

[Oldpath05]

View attachment 502323
Here is a titanium fire pit I started welding up.

What is the end result of this fire pit going to be, is it something to cook hotdogs on? probably the only project here made with titanium.

 

[Kyle_in_Tex]

What is the end result of this fire pit going to be, is it something to cook hotdogs on? probably the only project here made with titanium.

LOL, good question. Maybe marshmallows too?

 

[dragoneggs]

What is the end result of this fire pit going to be, is it something to cook hotdogs on? probably the only project here made with titanium.

That is what is so cool about this project...

I've engineered titanium in structural applications in my day job but haven't actually worked with it so I'm quite curious on hearing Kyle's perspective.

 

[Kyle_in_Tex]

That is what is so cool about this project...

I've engineered titanium in structural applications in my day job but haven't actually worked with it so I'm quite curious on hearing Kyle's perspective.

I just want to see how it works with fire in it. How it radiates. How it holds up. I'm using some left over stock from a project that was finished about 5 or 6 years ago.

 

[dragoneggs]

I just want to see how it works with fire in it. How it radiates. How it holds up. I'm using some left over stock from a project that was finished about 5 or 6 years ago.

I stumbled across your old cookie sheet thread about bending. Didn't realize I actually replied to that thread. How are the cookies and sheet still doing?

 

[Kyle_in_Tex]

I stumbled across your old cookie sheet thread about bending. Didn't realize I actually replied to that thread. How are the cookies and sheet still doing?

Truth be known, my wife does not like it because it holds it's heat too long after removing from the oven. Other truths, I made a simple cookie sheet in 7th or 8th grade out of aluminum for my mom and she still loves them. I know, cooking on aluminum is probably bad, and I ate plenty of cookies off of those sheets. That's why I'm now crazy enough to make a Ti firepit. LOL.

Besides copper, of the cheaper metals, aluminum is best at thermal transfer.

 

[jmc]

I just want to see how it works with fire in it. How it radiates. How it holds up. I'm using some left over stock from a project that was finished about 5 or 6 years ago.

I made a skirted spool for a spinning reel out of a Ti alloy. (Ti-6Al-4V) Got a little careless with speeds and feeds and the birds nest of chips caught on fire and burned violently. It burns like magnesium. White hot and quickly.

Former employer had to change the way they dry blasted their medical implants cause the ti particles would settle out in the exhaust duct and catch on fire.

 

[Kyle_in_Tex]

I made a skirted spool for a spinning reel out of a Ti alloy. (Ti-6Al-4V) Got a little careless with speeds and feeds and the birds nest of chips caught on fire and burned violently. It burns like magnesium. White hot and quickly.

Former employer had to change the way they dry blasted their medical implants cause the ti particles would settle out in the exhaust duct and catch on fire.

yes, fine threads or shavings can catch fire. Old Kodak flash cubes had titanium filament in them. Usually, plate Ti does not catch fire. I will be sure to place it away from any building.

 

[kingston01]

Nothing much actually.. Just lazing around..A very unproductive day I guess..

 

[jmc]

Nothing much actually.. Just lazing around..A very unproductive day I guess..

Interesting first post....