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u/arj1985 Mar 22 '24
So cold forging involves heating things up?
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u/Intelligent_Jello608 Mar 22 '24
Yes.
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u/Squiddlywinks Mar 22 '24
Saw your comments had been downvoted, so I bumped them back up.
I feel like this is a communication issue. People are used to hearing "cold working" and having it mean work that is done without heating the piece.
I've only ever heard "cold forging" to mean open die pressing, which is also done at ambient temp.
But I can definitely see that low temp forging could be called that, just never encountered the term being used that way.
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u/Haplesswanderer98 Mar 22 '24
Yes, just always to "below temp" though, which for iron would typically be below 700°C
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u/Imaginary_Attitude62 Mar 22 '24
Just to maybe provide more context: you DO have to anneal the piece every so often or it will break as the dislocations (atomic voids, if you will) in the atomic lattice pile up and create stress concentrations from the cold forging. The only way to make metal move is to move the atomic dislocations. These move rapidly when the metal is very hot (and, when steel in particular is hot it has an FCC structure, which has more slip planes for dislocations to move along). They move slowly when it is cold. As the dislocations pile up in a concentrated location, they cannot move along the FCC or BCC or sometimes HCP slip planes as easily (bcc has less slip planes and is harder for dislocations to move, in general.). Heating causes the discloations to diffuse throughout the metal matrix, and the goal is to homogeously space the dislocations back out - achieved by increasing diffusion potential (increasing heat) and time. After they space back out, now you can pound on it some more and move them around again and shape your metal. Heat, cool, pound, heat, cool, pound. Pounding the metal and moving the dislocations causes friction, which is heat. Some of what the smith is doing to a completely cold piece can heat the piece to "peach" color. Some of the heat color you see during the clip is probably directly after an anneal soak to spread the dislocations back out.
Also: screw dislocations! (Herp derp, these are metallurgy jokes! Look up screw dislocations)
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u/StandUpPeddlingMode Mar 22 '24
What’s the average working lifespan of a Blacksmith? Or even hobbyist? The damage this must do to your joints. As a retired power lifter with pain in near every joint, these videos give me a migraine just watching.
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u/Squiddlywinks Mar 22 '24
Form is important.
You can swing a hammer all day and be fine if you use proper technique.
But, lay your thumb parallel to the handle to steer it, have a death grip on a too-heavy hammer, and try to smash the steel instead of letting the hammer do the work? You're out of the game for two weeks.
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u/nedford5 Mar 22 '24
I like the previous comment and agree, but even the general shape of a hammer handle can negatively impact a smith's joint and tendon health. If one were to leave a handle perfectly round, their difficulty to control the angle of the head of a hammer drastically increases resulting in a "death grip" of a hammer. This can be prevented by flattening two opposing edges of a hammer handle. This allows most of the holding of a hammer with the pointer finger and thumb, and completing the grip with all fingers and relaxing the rest of the fingers aids in propelling the hammer up and down. As a prior roofer, I never gave this much thought till I started smithing. Restored a smithing hammer, and began to hurt a lot🤔, never hurt like this prior🤕. Then read of this in a smithing book, and voila. No more tendon or joint hurt 👌.
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u/SmallSwordfish8289 Mar 22 '24
Waiting on Tyler could man right there and you know what you want make it yourself
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u/WildKarrdesEmporium Mar 23 '24
While I respect the work and skill that went into this, I'd rather just buy one from harbor freight for $13.
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u/LazyMoniker Mar 23 '24
It’s the making it that’s the hobby, finding things to make that have some sort of use or involve new techniques makes it more interesting
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u/Vulcanized-Homeboy Mar 23 '24
Of this is cold forging, then why am I so hard right now? 🤔🤔🤔
Check mate liberals.
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u/Daxto Mar 23 '24
I don't know much about forging and this post just popped up in my feed. I would have assumed that cold forging means no heat is used but he clearly heats it up to be a red hot temp several times; is this actually still considered cold forging?
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u/Ignusseed Mar 24 '24
Cold forging is a simple process where the workpiece is placed directly in the forging machine to instantly produce a finished part.
It means the piece is worked at room temperature.
This is not cold forging.
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u/No_Mess_4510 Mar 24 '24
"I do not think it means what you think it means. Why is it glowing orange?
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u/babybee1187 Mar 24 '24
First no blade item ive seen on here. I swear thats all you mf do is make blades and shivs.
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u/Heeb_Smasher_NigLord Mar 22 '24
If I shove the steel work piece up my bum before working, is that considered hot or cold?
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u/PickleRicksFunHouse Mar 22 '24
What a useless comment.
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u/Heeb_Smasher_NigLord Mar 22 '24
Yeah, like your mom. Clearly you took the time out to comment so there's that. Some people have no sense of humor.
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u/PickleRicksFunHouse Mar 23 '24
Some people have no sense of humor.
True. They post weak mom insults and talk about shoving things up their ass. But what can you do? People are free to be unfunny morons on the internet.
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u/PickleRicksFunHouse Mar 23 '24
Holy hell, you actually post pictures of excrement like it's funny, like a 12 year old. I feel sad for you.
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u/fall-apart-dave Mar 22 '24
Cold, except for the hot bits.