Hey guys, I've got some parts going out for DLC coatings. This got me thinking about the possibility of coating the I.D. of a barrel with DLC or perhaps even TiN. Has anyone ever played with doing this or done such a thing?
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I used to do a great deal of coating work through MMI in Sand Diego. As mentioned, the vapor deposition process has a hard time with uniform film coverage on a deep ID part.
A traditional small caliber rifle barrel would be a virtual nightmare for this process. The OD however is no problem.
We once did a batch of barrels for some secret squirrels. Submerged a CM barrel (plugged bore) for year "somewhere" in Coronado. Came back 12mos later and scraped the biology off the outside, screwed it onto a receiver and went for broke.
Hammered. 96c Rockwell is a thing to behold!
C.
Just like seasoning a block. old timers would do this with engine blocks for race cars. Machine the block except for the finish hone on all bearing surfaces and cylinder walls then dig a hole toss the block in and retrieve next spring as a "seasoned" block effectively surface hardens the entire thing. crafty old fuckers.
I used to do a great deal of coating work through MMI in Sand Diego. As mentioned, the vapor deposition process has a hard time with uniform film coverage on a deep ID part.
A traditional small caliber rifle barrel would be a virtual nightmare for this process. The OD however is no problem.
We once did a batch of barrels for some secret squirrels. Submerged a CM barrel (plugged bore) for year "somewhere" in Coronado. Came back 12mos later and scraped the biology off the outside, screwed it onto a receiver and went for broke.
Hammered. 96c Rockwell is a thing to behold!
C.
Could you have the barrel salt bath nitrited than ion bond after the fact? That way the bore is coated for long life and the outside has ion bore.
I was thinking along those lines and was wonder why the op wouldn't just go with sbn? I assumed perhaps the op liked the cosmetics of the two coatings mentioned?You could, but I don't know why you would.
The melonite finish looks nice and has great corrosion resistance. Ion Bond is expensive.
Doesn't seem like a great idea to invest so much money on a consumable item like a barrel.
Hyperbolic Parabola Is the best thing to play with on bearing surface design. When u get the radius just right u can increase your bullet b.c. by a decent amount. I machined .284 bullets at 200gr with 1.25 G7 B.C. Theres a reason why the Ram jet is so fast which is a one piece engine with the correct parabola for thrust efficiency . Also Try a lined barrel with at least .05 per side of DLC coating and use gain twist and use a percentage of inconel 718 in barrel material.
Sign me up!!!!!Seems like .284 bullets with 1.25g7 would be pretty popular.....
Hyperbolic Parabola Is the best thing to play with on bearing surface design. When u get the radius just right u can increase your bullet b.c. by a decent amount. I machined .284 bullets at 200gr with 1.25 G7 B.C. Theres a reason why the Ram jet is so fast which is a one piece engine with the correct parabola for thrust efficiency . Also Try a lined barrel with at least .05 per side of DLC coating and use gain twist and use a percentage of inconel 718 in barrel material.
Lol y’all have to know he’s not coming back.....
Lol y’all have to know he’s not coming back.....
Hey guys, thanks for the response's . Im just trying to give people hope that may have not been tapped yet. I am not a bullet maker and i can't see why one would not try different Parabola's on the bearing surface. Barnes put's groves on there bullets and that for sure isn't helping B.C. Even though i am a Machinist , due to working in a steel mill as one i can't just start machining bullets. But someone needs to try Parabolic radius theory on bullets by now? And also proper depth of dlc coating on a barrel by now. Shit why not carbide lined i.d. even with nitride coating. Some machinist inserts are tough as nails like seco duratomic TP 1500 MR5 chip breaker. U can rough 1200 surface ft. a min. with them bastards. Seco though hmmmm has to be a way we can rough machine at higher surface speeds. Well since about 2005 they figured out how to.
Hey guys, thanks for the response's . Im just trying to give people hope that may have not been tapped yet. I am not a bullet maker and i can't see why one would not try different Parabola's on the bearing surface. Barnes put's groves on there bullets and that for sure isn't helping B.C. Even though i am a Machinist , due to working in a steel mill as one i can't just start machining bullets. But someone needs to try Parabolic radius theory on bullets by now? And also proper depth of dlc coating on a barrel by now. Shit why not carbide lined i.d. even with nitride coating. Some machinist inserts are tough as nails like seco duratomic TP 1500 MR5 chip breaker. U can rough 1200 surface ft. a min. with them bastards. Seco though hmmmm has to be a way we can rough machine at higher surface speeds. Well since about 2005 they figured out how to.
I can find someone that will put you in front of a machine tomorrow
Exactly which is why Nitriding wont wear off in a barrel if properly done. Just like someone properly making a carbide lined barrel . Barrel's are still on old school level besides structured barrel's. If micro machining is possible then having a barrel lined with carbide whether its in the i.d. only and not the chamber i.d. or what. That has to be possible to try and check off the list. Clearly it would take a big manufacturer to try due to money they have. With surface that hard that is why i mention gain twist because it will start out with less initial stress on rifling which hard crack-able material would perhaps benefit from. I'm pretty sure adding inconel one of the strongest metals yet tough to machine but perhaps easy to machine with proper tech would also perhaps benefit barrel life. Brass vs 416 stainless or Brass vs inconel hmmmmm pretty tough decision lol. Don't have to be a genius to figure that one out. A low volume barrel maker probably don't have the will or correct setup to even try to make a barrel out of very strong material though. This is why i speak of big company. Most big companies the engineers are afraid of trying new shit like this due to job risks. Lot of engineers have cheated their way through college.So basically you have no education and no working experiece of aerodynamics, fluid flow theory, bullet manufacturing, metallurgy, physical vapor deposition, barrel making, heat treatment or anything else.
You just sling some cool sounding words and some irrelevant references to machining inserts and think that brings credibility?
EL OH EL
And oh yea, nitriding isn't a coating in case you were wondering.
Exactly which is why Nitriding wont wear off in a barrel if properly done. Just like someone properly making a carbide lined barrel . Barrel's are still on old school level besides structured barrel's. If micro machining is possible then having a barrel lined with carbide whether its in the i.d. only and not the chamber i.d. or what. That has to be possible to try and check off the list. Clearly it would take a big manufacturer to try due to money they have. With surface that hard that is why i mention gain twist because it will start out with less initial stress on rifling which hard crack-able material would perhaps benefit from. I'm pretty sure adding inconel one of the strongest metals yet tough to machine but perhaps easy to machine with proper tech would also perhaps benefit barrel life. Brass vs 416 stainless or Brass vs inconel hmmmmm pretty tough decision lol. Don't have to be a genius to figure that one out. A low volume barrel maker probably don't have the will or correct setup to even try to make a barrel out of very strong material though. This is why i speak of big company. Most big companies the engineers are afraid of trying new shit like this due to job risks. Lot of engineers have cheated their way through college.
Hi,
Hey wait a minute...
I thought you already manufactured and proved your bullet design...Now you cannot just make bullets????
I have a Swiss screw machine and can have bullets to the market in 4 hours.
Also...so have you or have you not made the bimetal alloy barrel you referenced in your original replies??
Sincerely,
Of course i have not made anything. I spoke of not being able to machine illegal shit at work. I work at arcelor mittal steel which is now cleveland cliffs. And i bid millwright work every year in the shop do to work/chill ratio. And thank god im not a Engineer there due to low pay salary in comparison to union pay and working 80hr avg easily.
I machined .284 bullets at 200gr with 1.25 G7 B.C.
Of course i have not made anything.
Hi,
You do see the issue right? LOL
Sincerely,
Theis
I will gladly fly to your location. If we can validate this I have a fat stack of cash to hand you along with a contract to buy all prototypes and rights to concept and materials. If you are unable to validate all of this I will be billing you for costs and time.Hyperbolic Parabola Is the best thing to play with on bearing surface design. When u get the radius just right u can increase your bullet b.c. by a decent amount. I machined .284 bullets at 200gr with 1.25 G7 B.C. Theres a reason why the Ram jet is so fast which is a one piece engine with the correct parabola for thrust efficiency . Also Try a lined barrel with at least .05 per side of DLC coating and use gain twist and use a percentage of inconel 718 in barrel material.
That shit was funny. But the guy in that video could come up with better ideas that someone has than a shoe flying for his comedy. Lot of comedians are actually low iq due to drugs. If i said hey i came up with a flying barrel guys. I doubt i would of got people interested from what there responses show. Again someone tell me that brass will wear out inconel or nitride , or dlc, or carbide faster than stainless or carbon steel LMAO.
Bro is trolling yall. Try harder.