Titanium tips

Joined
Mar 20, 1999
Messages
1,163
Whew... this stuff is really weird. Never have I seen a material that dulls and scratches so easily yet is so hard to work with!

After 2 days and countless hacksaw blades (about 1.5 to 2 inches cut per blade in 1/8" thick stock!), I finally went to the helpful Sears hardware store and found some 12" Carbite Grit Saw blades (stock # 40862), and a 10" Carbide "Rod" Saw blade (stock # 40861). The latter is a round, thick wire coated with Tungsten Carbide grit. Both products perform miraculously and I highly recommend them! The grit does load up with Ti particles, so I am going to buy some soapstone to try on them.

After I cut my blanks out, I began grinding on them with my new belt sander. I started with an 80 grit belt and finished with a 120 grit. Those are the only belts I own right now. I will be ordering more. I think a 60 grit belt would have made the early work go faster. I remembered that someone mentioned some sort of lubricant for the belts that makes them cut longer so I tried a little Teflon lube (ZEP45) on one 120 grit belt and found that the belt loaded up very quickly. Perhaps I should try a product specifically for grinding belts!

I fingured out that I was using WAY too much pressure and working the Ti too fast. I was having to wear a glove or hold a leather patch up against the blank due to the piece heating up so much. When I tried to thin the edges and tip of the stock out, they would burn up or blacken terribly and become hard to obtain even grinds on. I discovered that if I took the gloves off, and handled the Ti with bare fingertips while grinding, I could frequently quench the work in cold water and keep it from overheating. Although I was working "slower," I actually made faster, cleaner, neater progress.

So with all that... may I introduce my first completely finished piece, The Texas Tanto!

Why The Texas Tanto? Good question! Well, I'm originally from Texas and very proud of my home state. I wanted to name the knife something that would honor Texas. But even beyond that I started this project with the idea of a Titanium blade specifically for backup carry in Texas. Why Titatium? Because if you've ever been to Texas in the summer you've learned to do one thing well and that is SWEAT! Since fatigue and irritibility set in quickly when you are overheated, I didn't want something that would rust all over you and start weighing you down. I wanted to build a low maintainance, lightweight blade specifically for defensive backup carry. This is what I came up with:

<center><img src=http://albums.photopoint.com/j/View?u=33630&a=208307&p=22019260&Sequence=0></center>

I know many of you hate chisel grinds, so I sabre ground this one (both sides). Until I get a good quality grinder, the rest will also be saber ground or chisel ground. I will be making more, so if you want one, let me know. Oh yeah... OAL is 7.25 inches.

I tried to finish this with sandpaper, but the dang thing resisted all attempts. I finally got a halfway decent looking 320 grit finish and topped it off with the old green Scotchbrite. The finish still doesn't look great and picks up smudges, prints, etc, very easily. Future versions will probably be bead blasted and have a lanyard hole (I couldn't find my drill!). Eventually, I want to have these water jet cut. It will save LOTS of grinding time and yield a more uniform product.

If there are any additions, deletions, changes that you would like to see on your model, let me know!

[This message has been edited by the4th (edited 05-31-2000).]
 
Yes, Titanium can be a B!TCH!!
I found that for hogging of material quickly, a VERY soft serrated contact wheel works well. Any time I grind on my harder finishing wheels or against a platten, it greatly reduces belt life. I hang the belt off the side of the wheel about 1/4" and this allows me to grind just about any inside curved area. I usually use an 80 grit belt for Ti hogging. I drop to a 220 belt to start my finish on the flat areas and usually finish by hand with 320, 400 then 600 using leather pad and COOL TOOL 2 cutting fluid.
When I'm roughting my Ti. it is usually making quite a light show and LOTS of smoke! In addition to the dust collector, I have a fan blowing the residual smoke right out the door of my shop. I also wear dark tinted welding glasses that are rated for cutting torch use as well as an organic vapor cartridge/dust mask. Also be carefull to clean up the Ti chips so they'er not a fire hazard.
The Texas Tanto looks like a good neck knife patern! I think some skeletonizing of the handle would be nice. Drilling the stuff is also fun! Once you get comfortable machining, grinding and drilling the Ti. you will be ready to tackle some Talonite!
Have fun,
Neil

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Talonite, New Pics, Etc., Etc.!!
Blackwood Knives
http://www.geocities.com/Eureka/Meeting/5520/index.html

[This message has been edited by Dr.Lathe (edited 05-31-2000).]
 
That's pretty cool, 4th! I had my wedding band made out of 6/4 with a mirror polish, so I'm hoping it will keep its finish a little longer than you suggested! Anyway, knife looks good. All you need is a Concealex sheath and you'll be ready to rock. I assume you are selling these or something? I am going to be knocking out some 1084 1/8" knives whenever my order comes in from Koval's. If you'd like to trade one of yours for one of mine, then let me know. Could be fun! In any case, that's a pretty good looking knife. I saw a knife with a pretty similar profile posted not too long ago on Hood's Wood's forum. Interesting. Also, I don't think I've ever met anyone from texas who wasn't proud of the fact!
wink.gif


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My Knife & Sheath Pages:
http://www.geocities.com/CollegePark/Lab/1298/frames.html
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Sheath Makers Referral Directory
chiro75@yahoo.com
Madpoet (Mel Sorg, Jr.) Tribute page:
http://www.geocities.com/CollegePark/Lab/1298/madpoet/main.html
 
come on neil....talonite is like grinding soft steel compared to 6/4....i use up a 50 grit regal belt just grinding ONE SIDE of one of my TNT folder handles...I can rough bevel a number of talonite knives with that same belt.....its rad...wish I had something that lasted longer....Ken Onion has told me to switch to 60 grit and use my variable speed grinder on slow speed.....no hardening due to heat up.....tom
 
Dr. Lathe,
I was going to drill a few holes, but couldn't find my drill. (Still can't!)
Yes! Cool Tool 2 - that's the stuff - I'll have to remember that!

Chiro,
What's wrong with the Kydex sheath I did? It's the first sheath I ever made! I used a larger sheath that I didn't like, reheated it in the oven, and molded it around this knife, trimmed the excess and voila! (Or do you just prefer Concealex?)

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Daddy always said, "Never ask a man where he's from. If he's from Texas, he'll tell you, and if not, you shouldn't embarrass him."

[This message has been edited by the4th (edited 05-31-2000).]
 
hey Tom, you should check out VSM abrasives http://www.vsmabrasives.com/ for grinding titanium, just got some of their CK742J belts, to look at them you'd think the grit would flake off the second you touch the Ti to them, the grit sticks out WAY further then a 'normal' belt and are spaced further apart, so they look quite odd (a 320 belt looks like a regular 80 grit) but after hogging the crap out of some 1/8" 6Al4V I'm still on the first 80 grit belt I started with.
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Sumo-I went to there site but every page says under construction....exactly how much ti did you grind off with this belt??? I am using .140+ for my tnt handles and have to remove quite a bit of material after bandsawing it, and thats just for the outside template.

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http://www.mayoknives.com


 
Tom,
I just filled out their information request form. I'll post my findings on here later.
 
The4th,

Have you considered having your blades plasma cut? I think I could rough cut your pattern in about one minute. E-mail me if you are interested. I would need a template from you.

If anyone ever questions if titanium can be sharpened I'll send you a pair of my leather gloves. I swear I get cuts just looking at it.
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Chuck Bybee
titanium.man@gte.net
http://www.titanium-man.com

[This message has been edited by Chuck Bybee (edited 06-01-2000).]

[This message has been edited by Chuck Bybee (edited 06-01-2000).]
 
Look! Another one!

<img src=http://albums.photopoint.com/j/View?u=33630&a=1544115&p=22122013&Sequence=0>

This one is called: the Indiana Icepick
 
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