[–] McFluffy 1 points 16 points (+17|-1) ago 

what happens if you stick your wiener in the middle of the rings?

[–] CowWithBeef 0 points 20 points (+20|-0) ago 

Probably nothing unless you have balls of steel.

[–] bdmthrfkr 0 points 9 points (+9|-0) ago 

You bastard, you made me watch it again.


[–] RaptorJesus 0 points 9 points (+9|-0) ago 


[–] goatsandbros 0 points 2 points (+2|-0) ago 

Or unless you stick a tiny steel rod up it, first.

[–] Slayfire122 3 points -2 points (+1|-3) ago 

What if mine are made from titanium?

[–] lord_nougat 0 points 4 points (+4|-0) ago 

You attain spiritual enlightenment!

[–] fuckingmockies 0 points 2 points (+2|-0) ago 

Just take out any piercings first.

[–] brandon816 1 points 2 points (+3|-1) ago 

Instantly cooked sausage!

[–] Womb_Raider 0 points 5 points (+5|-0) ago 

This is awesome. What are the cons?

[–] JoshuaQuail 0 points 9 points (+9|-0) ago 

It comes down to a very tiny heating zone (so no large or awkwardly shaped projects), plus high equipment and energy cost. It's great if all you make is the same knife over and over, but very limiting otherwise.

[–] NicknameUnavailable 0 points 11 points (+11|-0) ago  (edited ago)

The equipment costs aren't that high (you can build one for a few hundred bucks) but the energy cost is pretty high.

If you make it large enough you can do some really interesting things though (like making alloys which can't be made in a container either because they are too hot for a physical container or because they will interact with just about any container chemically at those temperatures - a powerful enough induction furnace will actually levitate any metal you stick in it inside the middle of the coil.)

[–] Womb_Raider 0 points 1 points (+1|-0) ago 

So instagram knife people would love this. Is it energy efficient? Is that as large as it can effectively be?

[–] 12290052 1 points 2 points (+3|-1) ago 

It doesn't work on all materials and the shape/size of the coil matters for the application. https://en.wikipedia.org/wiki/Induction_heating

[–] NicknameUnavailable 0 points 1 points (+1|-0) ago 

The shape/size isn't so important (it has to be a coil and the size is based on the circuit driving it.)

It works on any metal.

[–] primaryappellation 0 points 0 points (+0|-0) ago 

Most homegamer blacksmiths stick to one or two materials (usually tool and spring steel if I recall correctly)

[–] MrAmerica 0 points 1 points (+1|-0) ago 

Probably crazy expensive with the energy cost.

[–] Rellik88 0 points 3 points (+3|-0) ago 

if he touches the coils with the blade will it shock him? Really cool tho.

[–] ShineShooter 0 points 11 points (+11|-0) ago 

No, but it will short between the coils which touch the blade and cause damage to it.

[–] ignacious_riley 0 points 8 points (+8|-0) ago 

Ha! That would be like a high-stakes version of Operation for grown-ups where instead of a buzzer going off, your heart stops.

[–] Fyrix 0 points 2 points (+2|-0) ago 

It looked like he was using tongs (if he's not, he fucking should).

[–] bunny_fan3 0 points 2 points (+2|-0) ago 

Where would an induction forge be better for heating up metal than say a blow torch?

[–] Gumbatron 0 points 1 points (+1|-0) ago 

They are often used industrially. They are able to provide a precise amount of heat to a controlled area (e.g. induction hardened saw blade). Far as I know, some knife makers use them (as shown) for heating prior to quenching in order to have more precise control over the blade temp. In terms of forging the knife prior to hardening, most would use a gas or coke/coal/charcoal forge (I have both a coke forge and a gas forge, use the gas forge for most things [* I am no blade smith though :-)])

[–] fusir 1 points 2 points (+3|-1) ago 

I sometimes worry about the EMF comming off of those things.

[–] [deleted] 0 points 0 points (+0|-0) ago  (edited ago)


[–] KikeFree 0 points 1 points (+1|-0) ago 

It's not DC.

[–] fusir 0 points 0 points (+0|-0) ago 

How would DC make an occilating magnetic field to excite the iron? Every time the domains flip inside of iron some energy loss happens, akin to friction. Flip the domains frequently enough you can get the metal mighty hot. That's high frequency AC.

[–] justsayingmayne 0 points 0 points (+0|-0) ago 

enlighten me

[–] Dsonophorus 0 points 1 points (+1|-0) ago 

whoa! Never seen anything like that! Innovative.

[–] RedditHater 0 points 1 points (+1|-0) ago 

What kind of power requirement is needed?

[–] Hodrige 0 points 2 points (+2|-0) ago 

DC high amps. I use a car battery for mine and it is good to harden tool tips and sharpened bits.

[–] Gumbatron 0 points 3 points (+3|-0) ago 

I'm unsure how your DC induction furnace works? My understanding of an induction furnace is that it uses an alternating current to induce strong eddy currents in the work piece, which causes localized heating. Without an alternating current, there would be no change in the strength of the magnetic field in the primary coil and therefore, no induced current.


How exactly does induction heating work? It helps to have a basic understanding of the principles of electricity. When an alternating electrical current is applied to the primary of a transformer, an alternating magnetic field is created. According to Faraday's Law, if the secondary of the transformer is located within the magnetic field, an electric current will be induced.

[–] fusir 0 points 0 points (+0|-0) ago 

Second person to say it's DC. No.

[–] RedditHater 0 points 0 points (+0|-0) ago 

Might have to look more into this. Thanks!

[–] watitdew 0 points 0 points (+0|-0) ago 


[–] moscowjade 0 points 0 points (+0|-0) ago 

Sex ed to demonstrate what happens when you dip your wick in thot.

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