Titanium Nitride (TiN)

Armedsask said:
I love how upset people get when they don't like the answer.

You asked if it was worth it and you got an answer.
Click to expand...

I never did get an answer to my question. Just poking fun at the OP, but that's an original idea that I haven't seen before. May not be what I want to do with my bolt, but if it wasn't interesting I wouldn't bother commenting.

...and I do use the space shuttle tile I got from Kennedy Space Centre. It makes a great hot-plate for heating up bearing races without melting the rubber on the benches at work. You can't apply it one micron thin, but 3/8" is enough protection to hold it in your hand while blasting it with a blowtorch.

Transform and nerd out!
 
Last edited:
Armedsask said:
Why? Do you fire 10,000 rounds a month? You'd shoot out your barrel long before you'd wear out your bolt from the abrasion that TiN would protect against .

Leave TiN coating to machine tools. I cannot express in words how much of a waste of money this would be.
Click to expand...

joe.danay said:
I never did get an answer to my question.
Click to expand...
You did if you'd read the replies. You got an answer to whether it was worth it and my opinion, two things you asked for.

But it wasn't the answer you wanted so you clearly ignored it.
 
Armedsask said:
You did if you'd read the replies. You got an answer to whether it was worth it and my opinion, two things you asked for.

But it wasn't the answer you wanted so you clearly ignored it.
Click to expand...

So are you gonna drill holes with your bolt or not? I love how upset people get when they don't answer the question;)
 
joe.danay said:
So are you gonna drill holes with your bolt or not? I love how upset people get when they don't answer the question;)
Click to expand...
Oh wow, I completely thought you were the OP when I replied. Ha ha

But yes, drilling holes in steel is the only reason I can see for putting a TiN coating on a steel part the mostly contacts aluminum. I'd skip the TiN and go all out for a TiAlN coating!

I'm waiting for the first company to make a carbide BCG and all the mouth breathers stepping over themselves to get one.
 
FALover said:
How many millions of dollars a year are spent on items for anything that have little or no use in the real world? If the op wants to spend his money on a high tech finish,so be it. Variety is the spice of life, go for it.
Click to expand...

Millions? You're off by about two magnitudes. Hell, I'm sure the gold trade alone accounts for the first couple trillion. The only reason gold is worth anything is because it is shiny and rare. Percentage wise, it has limited use and demand outside of hording for value and coveting it's shininess.

Why the heck not get your bolt done? It'll look pretty and last a lifetime, and if you want it, it's your money, time and parts.
 
I do not shoot 10,000 rounds a month nor do I plan on drilling holes with it. That aside It’s $120US on a frivolous purchase that will make my bolt hard and shiny… Don’t you want a hard shiny bolt?
 
Let me see what we would charge you to coat your bolt with TiN and see what the max temp is during our coating load.

TiN in general where I work is about 5 microns thick in diameter, so about 2-1/2 microns per side or surface.

As far as using it on things other than cutting tools, we put it on dies, and punches for wear resistance and it increases the tool life big time.

If you wanted an even more functional coating, we are in talks with a local gun manufacturer right now about using our Hyperlox coating on parts since its used mostly for DRY MACHINING applications where lubrication and coolants are not present.

If there is any serious interest, I'll pull the bolt out of my AR and and see about fixturing it in the machine and a price to run one through a load.
 
Just a thought, if you made your carrier harder would that increase the wear on the bearing surfaces in your upper (aluminum)?

I guess the OP can be the test case, does this occur with other coatings on the bolt/carrier?

Doesn't seem worth it to me, but each to his own
 
I'm still waiting for someone to make a bolt & carrier out of boron carbide. TiN is way too soft to withstand abrasion from 7075 T6 aluminum.
 
Throttle_monkey1 said:
I'm still waiting for someone to make a bolt & carrier out of boron carbide. TiN is way too soft to withstand abrasion from 7075 T6 aluminum.
Click to expand...


TiN is actually good for lubricity with Aluminum, we use it on most of our cutting tools that are used in machining Aluminum simply because the Tin helps prevent the aluminum from "picking up"or "sticking" to the cutting edge and flute faces.

Our machines run at around 650/700 degress C so not sure what would happen if the steal parts were to get tempered to a really soft state. Anyone know what steel most bolts and related parts are made of, and what hardness they are on the Rockwell Scale?
 
I was being sarcastic. If the OP wants to get his carrier group nitrided, have at it. The oxide layer on anodized aluminum is very hard, but if this was an issue manufacturers would be falling all over themselves to come up with ways to mitigate bolt carrier wear.
 
You must log in or register to reply here.
Back
Top Bottom