This Forge Changes Everything
Вставка
- Опубліковано 3 жов 2024
- Coal Ironworks Induction Forge: coaliron.com/p...
@CoalIronWorks
The best place to follow along with the day to day updates in the shop is through my Instagram @Will_Stelter / will_stelter
Make sure to check out Patreon! You'll get your name in the credit roll of the video, and it's the best way to directly support us.
/ willstelter%e2%80%8b
Editing by the talented / isaiaharnoldfilm
www.lastandfir...
Website www.willstelte...
Electrician here who works with magnetics and induction heating:
If you are going to bend your own elements, keep this in mind: You want all of your coils to go in the same direction., reversing the direction will only weaken the magnetic field, as reversed fields will cancel each other out and nullify your heating capability. a 'C' shaped element is possible, but would be grossly inefficient as you couldn't get many turns of conductor on your work without doubling back on itself and killing your field.
Your shop needs top-notch electrical service too!
One of the interesting things you can do with an induction furnace is place a high temp non conductive sleeve inside it and run argon or helium to prevent any oxidation on the metal.
If you turn it upright you could make a kind of cup and even keep the gas in there, I know for certain carbon dioxide is heavier than air so it just kind of lies there.
@@joepiejaapiebut as it warms up it's lighter than the cold air outside so I wouldn't be sure it would stay there.
You could probably jury-rig an old sandblaster cabinet for an O2 free environment.
We had a big induction furnace in one of the labs where I worked I am not sure of the output of it but the power supply was connected to a 300 amp 3 phase 480 breaker and they ran paralleled 2 aught welding cables to the induction coil. They used it to make exotic metal blends for materials testing.
@@MF175mp You keep just a trickle of gas flowing in after you have displaced the oxygen.
If you want to make your own coils, use salt instead of sand. Especially with smaller coils sand is difficult to remove. Salt will desolve in water. Just force water under pressure through the salt and it will come out.
A power button that works both ways! What a time to be alive!
OLD NAVY RADAR SCHOOL TEST DAY MANTRA: (R.T.F.Q!) READ THE FU-ING QUESTION! I= A COMPLETE CIRCUIT! O= INCOMPLETE, OR OPEN! CIRCUIT duh?
I feel like you're going to want thong clips and tool rests because holding bars that long will get annoying fast. Feels like an amazing machine with endless possibilities.
Yeah you don't want your thong out of place
Don't mention thongs! Especially if studded with magnetic materials. This is one of the things that would make me paranoid, ie standing too close with magnetic fly zips or buttons.
100% the sped up footage really shows how much he wiggles and moves the stock around LoL
@@brolohalflemming7042 it is not much different than induction cooking tops... You don't worry about those do you? ;)
@@JokerInk-CustomBuilds I probably would if I had one! I guess with these there's also a risk of overheating work? But I guess that's something you get used to with practice.
Lots of possibilities with induction. Using a crucible and holder- small scale casting can be done more economically.
Also, heat shrinking and some bearing removals take minutes because of the surface induction.
The 1/4" rod still heats up pretty quickly at first, because it acts like a pole piece, focusing the magnetic field into its length. In addition, as long as steel is magnetic (below Curie temperature), it has double losses from magnetic hysteresis as well as the induced current. Above Tc, the hysteresis and magnetic focusing effects go away, and it's like heating any other nonferrous metal -- you need much more voltage on the coil now to keep it heating up, it's harder to heat past orange-hot.
EE here -- have designed and built several induction power supplies. It's fascinating tech, just a bit hard to use: the coil shape matters so much. To help with that, you can get or make a quick-change adapter (to mate electrical and water connections in one motion), and with some limitations, you can get/make flexible coils by stuffing chonky ground braid (the tubular-weave kind) inside a hose (make sure it's got good enough water flow to keep cool all the way along it!!).
The tuning settings are also critical. Not clear if that unit is fixed or what, but tuning determines how much power you can get into a coil of given design (size and number of turns), and what frequency it runs at. Typically, there's a number of capacitors inside that tune the frequency, and a transformer with selectable taps that matches the high-frequency inverter to the coil. Frequency won't be important for forging application, but in precision applications like case hardening, it's critical for the case depth (you can heat the outer layer, 1/16", 1/4", whatever, just over austenizing temperature, then quench with water spray, to get a much deeper case than chemical treatment can do; power supplies for this application, have replaceable capacitors and adjustable tap settings to enable this). If you don't have tuning options, the range of coils you can use will be quite limited; generally speaking, you will have fewer turns as diameter goes up, but also the range of diameter ratios (coil to work) that you can deliver full power into is limited, and somewhat dependent on the coil design (size and turns -- inductance, overall).
I think that the most exciting thing about an induction forge is that you can melt metal in an oxygen free environment, either in an inert gas or a vacuum, I used to run an 11kw induction evaporator that evaporated molybdenum at about 1,600 C and 10-7 vacuum. I can see going forward you making all sorts of special tools and guides to compliment this awesome addition to the shop. If you are really interested in making alloys let the channel know and I am sure any of us who have some experience will give you some things to look out for.
I love how confident Will is with a power hammer. The Little Giant put in some work!
The hammer knows what Will will do to it if it fails him.
It’ll get the pallet jack 💀
@@artor9175still too soon
@@WillStelterbladesmith it feels good that you can joke about it today. It was traumatic back then
It is still traumatic, for the rest of us.
Yeah, this was the only way I could keep making knives. No workshop so i had to set my forge up in the backyard, harvested for parts within a day. So induction inside was the name of the game. Great for just heat treating too
One of my customers made precision forged connecting rods. The near net connecting rod forms were reheated with an induction furnace and smacked by a forginging press to make the connecting rod. I had other customers that used induction hardening machines and we used induction heaters to preheat our steel strip on our galvanizing line. We use an induction welder to weld the seam on our steel tube at our tube mill. That is the seam on the square tube you use.
An induction forge is such an interesting piece of equipment. it won't replace a gas or coal forge entirely, but rather another helpful tool in your arsenal
We have an Ajax Toccotron 25 Kw machine at my work. We use it to heat treat and temper 4130 steel and 440 sst parts. The nice thing about the Toccotron is you can make programs with three different power levels and times for each. Cool machines.
I appreciate that you honor the old technologies and embrace the new.
It's a super smart idea to mess around with new tools like this to get to know them, but especially with a whole new technology. You know a ton already about how your bread will come out of the oven, but now you're trying to microwave it; gonna take some getting used to.
Don't forget that eventually that heat will travel down the bar to your hand if you keep heating and working it.
For knife makers in garages, or larger production handmade shops, I would hope this becomes prevalent!
So that was amazing! That's going to change blade forging for sure and Artisan forging definitely. Even larger forging problems are solved easily with this thing. This Alec Steele know about this? And about it being quiet.. yeah that's kind of a groovy perk but your Hammer still going to go a bang a bang a bang LOL
We love you will, my brother. Be blessed.
Also so cool that s8nce the induction forhe heats up a pin point area and so fast, he's able to hold with his hands the end of the piece as the heat simply doesn't have time to travel down
Had a lot at my old work .Forging,brazing carbide inserts and heat treatment.Heats up steel very quickly.
It would make heating up only the end tang for putting on pommel and butt caps. Or addressing a warp, or putting a bend in a particular part for blacksmithing.
Another tool too add to my "massive amounts of money" list of tools to get in the future. Along with a milling machine, power hammer, metal lathe, cpu/gpu manufacturing plant, and F22.
Hahah. Honestly the fighter jet is probably several orders of magnitude more achievable than all the proprietary crap that goes into a chip fab.
well, that's fine. I'd rather have the F22 anyways lol.
Looks like it could benefit from having some support tools that could help hold the metal in the right position and making it easy to handle the hot metals.
They same way as you have tools for your gas forge.
Also, induction heating is just always super impressive.
I was thinking the same, they must make some sorta slide table you can mount it
Watched the video of them using this to make crucible steel. Was freakin nuts
I’ve wanted one of these for a while that would make everything so much quicker
My first thought was you could use it to heat your metal initially then use then gas forge to keep it hot once it’s a weird shape, but with all the fun coil shapes you might not even need to do that. I’m interested to see what you can do with this thing
Yeah this is awesome....
I used one there the day we were at Coal and Iron together for the first time. Quite odd when you are used to coal. But I will say my first forging in it was welding a rein on a tong bit.
fill the copper pipe with water with a little liquid dish soap and freeze it. They do that to make musical instruments. It keeps the tube from collapsing when you bend it.
For those wanting to know how this works (and correct me if I'm wrong, it's been a while since I went to college): the magnetic field produced by the machine affects the metal (obviously).
If you have a field that doesn't change (pulses like an induction stove works), you have to move the material to produce eddy currents inside the metal which will heat it up. Because the magnetic field wants the field not to change, the metal itself will become a sort of magnet itself with opposite poles to the coils. The change and movement of the field inside the metal is what heats it up.
Pretty neat stuff indeed
It can't replace a gas forge, but it almost can. This is ideal for small shops, and also perfect for fine work where oxidation is a problem.
5:58 😂 I now humbly request Will explain all electronics like this.
I would pay for videos like that i could send to family when I'm tired of explaining something sinple for the upteenth time 😂
I picked up a US Solids 15kw machine last year. It is my favorite addition to the shop. I recommend induction to everyone who, like me, needs to get up and forging quickly… and be able to shut down just as fast when you need to. It’s a game changer in every way.
There is something so whimsical about needing to water-cool the thing that melts steel
I’ve used induction heaters on cars. Being able to heat a seized nut in seconds without breaking out the torch is great
Very cool. I always thought these seemed like they might be kind of a gimmick, but not being a blacksmith I hadn't realized how slow the gas forge was. I imagine it's probably more efficient energy cost wise since you don't have to leave it burning in between heats.
More efficient in just about every way, not just because of the reduced time. A gas furnace heats air, and the air heats the forge and steel, then the forge radiates some its heat to the steel and vise-versa with every step being less than 50% efficient for at most 20% efficiency when the steel is in the forge. Induction heaters of this sort are usually greater than 60% efficient with resistive losses in the coil being the majority of the loss. High end units can get over 85% efficiency.
Not to mention that in most places these days, the electricity is cheaper than the gas per unit energy.
I highly recommend building a resting bench for your arm that way you can steadily and repeatably hold the piece inside the coil.
I'd love to see that try something like Cannister Damascus.
Might need a custom coil for it but that this is amazing.
I did a lot of Soldering with a similar device, its neat!
Make a toolrest with a reciprocating arm that moves a knife slowly back and forth to evenly heat a whole knife blade
Man that’s a game changer!!!
You can use it to find those microscopic slivers that find their way into your fingers. The ones that cannot be pulled out by any means, with any tool; It works great, I did it a few times myself.
that sounds like a horribly painful, yet ingenious way to find where the slivers are
...any tips on getting pieces of glass out from under your skin? drawing salve did nothing but bleach the skin p a l e white for a few days
@@Volti-Vagra I don't know anything about glass slivers. As for the steel slivers I got at a job; it did not hurt badly at all. You do it very quickly; the sliver turns red; you get a blister, and it pops out. This was fifty years ago, and I imagine it still works the same.
Being a machinist for a number of decades, I carried a shockingly long metal splinter in a finger joint for quiet a long time before the body finally discovered it.
@@opendstudio7141
OUCH!
if you want to bend copper pipes, fill them with soapy water and let it freeze. that´s how trumpets are made :D
I wonder if wax would work better. It would 't require chilling the metal to the same level.
@@Freakmaster480 i cant see a problem with that, if you can get it out afterwards.
@@flpmlks5181 Wax would be easy enough to just melt out. The reaidue should burn out easily enough if anything gets left inside
If you had the gumption to prevent O2 exposure, you can rig up a plastic basin (just get a clear couple tubs from Walmart for $5/ea or w/e) that is the smaller, inner basin where your coil sits and that is filled with welding Argon, and the larger, outer one is just air, to catch any argon you "splash" out of the inner one
just poke holes and seal as appropriate.
Induction forges are pretty trick. The barrel for Desert Eagle pistols used to be two pieces (the large area where the bolt locks in and the chamber/rifled section) that were pinned together in the past. Now days Magnum Research uses induction to heat the two pieces to essentially weld them together.
That's a pretty interesting machine and for some things I can see where it would come in handy. Stay safe and healthy will. Sense Damascus or pattern wielded steel has different types of steel in it will there be much difference in time it takes to heat it fully with the different steel types it has?
The forge where i practice blacksmithing recently got one aswel and although it’s a highly interesting machine, it’s not as harmless as Will portrays it to be. It does indeed heat the material using a very concentrated alternating magnetic field, which also mean te surrounding area gets blasted with a lot of waste radiation. We had a safety analysis done at our forge and the company gave us a safe zone for electronics of 2m around the coil (this includes phones, cameras, but also pacemakers and other metal implants) and also a safe zone for bodies. The coil does actually affect living tissues aswel (they are in fact conductive) and will heat them up every so slightly. They gave us a safe zone around the coil of around 20cm where they recommend to keep your limbs out of when the machine is in use. It is recommended to always hold your work with a pair of tongs. It goes without saying that any sort of jewellery has to be removed before operating the machine.
It is also imperative that you prevent touching the bare coil and make sparks like Will did. Even though the machine works with incredibly high currents, its voltage is quite low so the danger to the user is limited, but this is preferably best avoided. Moreover, the arcing has a chance of melting through the bare copper and puncture the tube. For your own safety and that of the machine, it’s imperative that the copper coils be wrapped with a fiberglas sleeve as shown in the video. The coils on our machine are even covered in a ceramic for even further protection.
For us ornamental blacksmiths the machine comes with more downsides. Since we are working with many complex shapes (scrolls, railings, gate ornaments,…) the coils tend to be limiting. As Will showed, small stock can be heated by a large coil, but it will not get very hot, so if you are working on a piece with changing cross section, there’s not one coil that will heat every part as efficiently. For heating scrolls, the only viable options are the pancake or taco coils, but they tend to be quite inefficient and not get the steel all that hot. If your scroll is very large in diameter, a taco will not reach the center and a pancake needs a lot of standoff from the machine, which risks breaking the thin tubes due to metal fatigue.
For a knife maker, who works with largely similar shapes, i can’t imagine there is a more suitable machine out there.
2:41 correction, and ferro magnetic. Yes you can heat up copper using induction heating however the efficiency drop significantly compared to ferro magnetic metals. Induction heating work best on ferro metal because when the magnetic field colapse in the metal, it create magnetic friction while in copper, the magnetic field colapse without friction, only edy current will heat up the copper.
if you're working with small stuff, this, imo, is the way to go. there's a particular sized over which traditional forges become far more efficient, but for little things like chef's knife-sized things? I like a good induction forge.
...now if only I had one in my shop! 🤣
...also had a shop! 🤣... 😭
OK, Will, hear me out. Attachments for that induction heater. Make a long flexible wand with a coil at the end. Something you can reach the twist machine with. Then as you twist things you can use that wand to heat certain parts of the metal to add more twist in certain areas. That is all. Thank you.
good to know the power button does in fact turn it off AND back on, very cool thanks Mr. Billiam Stelter of the USAs of america.
Those are also AMAZING for casting metals.
Heat treating is a great thing to do with induction you can heat only half inch along the edge and quench you get soft backs and tuff knifes
I love my coal Ironworks press. They have great products.
God bless you Will.
I’d say make an adjustable stand, with some 2” angle iron on the top in a V position, so you can rest your work piece on it and keep it in the center if the coil.
I imagine arcing on the coil will eventually burn holes in it, so having a stock rest will save on coil damage.
Bet this tool does hilarious things to your power bill this month! 😂
Average electricity rates in Montana looks to be about 13 cents per kWh. If he's running this on full blast, that's $3.25 per hour of up time. If the first heat takes 2 minute and subsequent heats would take like 30 seconds or less, he could do at least 100 heats for $3.25. I suspect that's significantly cheaper than running the gas.
i think they sell silicone pipe-supports for bending copper pipes cold. they've got a cord down the middle, then a section that's silicone, so you can fish it in and out with the string, and also won't have to deal with sand if you don't want to...
you can even make one with a length of strong cord with some knots to "grab" the silicone; I suggest something like Dyneema, run it down a couple feet of fresh copper tube (that's been sprayed with mold release if needed) with the bottom sealed with the string poking out (just pinch and roll it).
tape a funnel to the pipe, pour in your liquid silicone of a firm variety and maybe give it a whirl, spinning it over head by the open end, to use the centrifugal effect to force it to the end so you don't get any bubbles.
pull it out after it's cured, and you just gotta chamfer or taper the ends and remember to lube it before use!
@16:13 no bad will please think about gravity
16:25 looks like he's holding a cigar and doing sone magic trick, lol
You can also fill the tubing with water and freeze it to make kink-free bends.
Dual coil, melt forge for gold and silver. Have a small melting coil go into a bigger coil around a crucible to keep the metal liquid.
Love seeing the combination of old with new.
Great overview of a game changing tool!
God this seems like magic
Needs a jig holder clamp thingamajig for larger thicker pieces, makes life easier I think
This is some crazy cool tech! Have never heard of this!!
Can also fill a pipe with water and freeze it to stop it from collapsing or kinking if you don't wanna get sand everywhere
Thanks again. Good machine !
Pretty sweet piece of kit
12:52 your left side hose has a drip, lol
very very kool, awesome Edit as well
Hear me out. Stainless tool wrap a burrito and warm it up in there.
I've made hot chocolate with inductive bolt heater in a stainless mug.
I hope hexchrome does not become a problem. Is food-safe stainless come in foil form? (quick web search later) Online Metals has it.
This is the best idea I've seen all week.
You might consider making a stand for holding pieces that take a moment to heat. Less likely to touch the tubes.
This is really handy for hardening just a face or an edge of a tool, I think.
This is awesome.
I always wondered why neither you or Alec were using that :)
wootz, wootz you said that (how ever its spelt) yes sir looking forward to seeing that.
Slan go foill
Conor
nice! now you need to build a stand that holds your metal firmly and not shake around
(tripod wheeled post with a sliding arm and chuck)
We was subcontracted to help wire. A electric motor rebuild shop that had huge motors and they used a lot of the induction to set bearings.
Very interesting!
First video that Ive seen in a while. Will looks jacked. Not some skinny little kid anymore.
Oh, here’s a thought. A ceramic sleeve, with the coils around it, that would let you just slide a long piece back and forth without having to worry about touching the coil, so heat long pieces like a sword.
This machine is amazing
I would love to see a detailed look into how much it cost to run these things if you ever get up to it.
You can also use to it to heat a crucible and melt steel for casting, etc.
man, that beeping is reminding me very much of a heart monitor at a hospital along with some really bad memories.
Wait, Water is flowing through the coils as they're energized? o0
My goodness technology is so advanced. We are living in the future.
No stinky gasses, BUT you gotta have airflow! Burning metal is TOXIC.
Awesome machine. Looking forward t some projects with it.
That's super cool!
it is an induction heater. Just like induction cooking tops. -You can easily google how those work. :)
As a former engineer, I greatly appreciate the flexibility that you can make your own coils. How wide and thin can you make the coil to keep the blade equidistant from the coil on all four sides?
I bet it would be nice to use the pancake induction coil with the steel underneath so you can see exactly when it's done without moving it away to see.
The induction coil works basically by alternating the direction of the magnetic poles in the material back and forth at really high frequency.
Great tool!!
Cool tool.
It seems so bizarre to see you holding a bar and your hand is only inches from 1500 degree+ glowing steel but you're not burnt. The speed that it heats up an isolated area before the heat propagates down the bar is hard to fathom.
I'm excited to see how you can use this to do precise edge hardening and tempering.
I've seen induction used like that in a very old video of Bob Kramer and Anthony Bourdain and always wondered, why it isn't used more.
cool toy!
How awesome 👏👏
I think it's cool. Obviously. Because it's cool.
I'm in Muncie, would love a meet and greet in Anderson.
They do a do a lot of classes, and hammer in each December 🔥