Hydraulic Press Vs. Most Explosive Hammer
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- เผยแพร่เมื่อ 25 ก.ค. 2024
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Exploding PRE-FRAGMENTED HAMMER with a 150 ton Hydraulic Press. Used force is measured with 240 ton force sensor and explosion is filmed with Chronos 2.1 high speed camera 1000 frames per second in this viral experiment video!
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Do not try this at home!! or at any where else!!
Music Thor's Hammer-Ethan Meixell - วิทยาศาสตร์และเทคโนโลยี
Surprising results considering past hammer explosions. I think the grooves relieved too much stress in the heads allowing them to just crack and flex
@@filespec I'm pretty sure that's the case with most of these hammers
Yes, like a control joint in concrete. He created weak spots which caused early localized failures. If you want an explosion you want to store as much elastic energy in the material as possible, it should actually be strong and uniform.
Also the cuts in the middle (even the shallower ones) was bad - because that created a weak spot where it could just bend and crack (the handle material is so soft compared to the metal, that it's pretty much the same as just having a hole there).
@@filespec Yeah, through hardening a hammer would make it too brittle, but case hardening allows the hammer to remain tough while reducing wear of the surface.
@@Fix_It_Again_Tony like who cares about a hammer core normally
Do you think there may have been some case hardening on the hammer head that you bypassed with the cuts?
Absolutely
That was my thought, too.
I like to imagine Lauri returning the hammers to the hardware store; "Sir, these hammers aren't the explody kind! I want a refund." 😆
lol
"Explody" is my favorite HPC word. 💥
My favorite phase is "who draw lick".
@@Fix_It_Again_Tony I also like "Holy Sheeeet! Almost died!"
I've been watching this channel for almost 10 years now, and I must say, the quality content never stops! Maybe you should pre-cut the hammers then soak them in liquid nitrogen?
Yes HPC, please do a video of steel at different cold temperatures to show the ductile-to-brittle transition temperature
I like your thought process lol
This is the best bad idea in the comments! *chanting* NITROGEN! NITROGEN!
@@manuelh.4147 but why are the stupidest ideas the most fun? 🙂
TEN years?
No.
“It just blumped out." -- HPC, 2022
I think the hammers appear surfaced hardened only with a more ductile core. The grooves break the up the harder outer surface and make it easier for the inner softer material to deform. I remember hearing horror stories of hammers cracking and shards blinding people, so maybe it's a safer alternative?
Ye agree, doesn't look like these hammers re solid steel
@@igi_2402 They are solid alright. Most tools you hit stuff with are not completely through-hardened, because you don't want to 1) risk it shattering and blowing your eyes out, and 2) don't want to break your hand when using it and 3) a hard surface and a soft core makes the transmission of force more efficient.
Like f.e chisels are only hardened at the tip and soft at the end where you hit them. Over time the end also work hardens and bends over, and when that breaks you can get supersonic fragments shooting around which can actually kill you.
@@Knuspabrot well okay, then we shouldn't expect them to nicely explode, especially after cutting into the surface like this.
Maybe if to use good old Soviet era sledgehammer can possibly get some interesting results
@@igi_2402 I think they've all been mobilized.
Bore a 1 centimeter by 2 centimeter hole in one end of the hammer no cuts machine a steel rod to fit hole closely, cut a shotgun shell apart and pour the gun powder in the hole insert the steel rod, place hammer under the ram of press now you have a pressure test vessel and it should shatter violently but with your safeguards you should be OK. But if you use dynamite all bets are off. Good luck.
Score a solid brass cylinder, like the one that busted your window already 👍
Weaken a pneumatik cylinder at the bottom, seal everything well and press the piston in.
Let's see if it explodes or just tears a hole.
It won't explode. The volume is not high enough. Once the cylinder is breached it will just pour out hydraulic fluid. Pressurized air can make an explosive event but fluid isn't compressed.
@@jasonbirch1182 I know. That's why I wrote pneumatic. I want to see if the seals fail or if the cylinder wall can crack open, with compressed air expanding with a bang or a poof.
These grenade hammers would be interesting to see in the smashinator.
If you put the notches in and then re-hardened them to high hardness might make them more splody. Though there might be too much ductility and that the stress is released slowly by bending instead of all at once.
Notching around the handle seems to be a bad idea.
I thought the same thing too. The hole through the hammer head already creates a major weak spot with a shape that gives it a strong bias towards bowing out and cuts along the hole's wall drastically reduce its ability to resist doing so.
"I'm too nervous, I can't even talk any more."
Like a teenage boy's first date. 😁
Same thing but with a metal that work hardens, like brass
Many times I've been warned about letting a chisel head get mushroomed. The overhang can break off and cause injury. Whenever a chisel of mine looks even a little mushroomed I grind it away.
Is there a way you could illustrate what happens with a mushroomed chisel using your press?
I was surprised how good the epoxy was holding the handles in
Me too, impressively strong. Thinking back, though, I don't think I've ever seen a head come off one of those fiberglass handles, only the handles break.
How about a huge version of the ball bearing? Those seem to have a more satisfying "pop!" Something like a steel billiard ball.
You should have a blacksmith, like TH-camr Alec Steele, make you some hammers at extreme hardnesses and tempers. Basically, ask the smith to make hammers they know would be too dangerous to use. Or just heat hammer heads to the highest temps you can get, without melting them, and immediately quench them in salted ice water; that should make for an interesting video, assuming they don't just explode on contact with the water.
You need to do more of this and also start testing the shrapnel strength of different items on watermelons or ballistic gel
"turns out there is a difference between a hammer and a frag grenade" this should be a t-shirt.
I think you might've gone about the hammer backwards 🤔
I have a feeling that *_drilling_* into it would've yielded a better explosion.
My logic is that it would retain the structural integrity of the hammer for the compression, allowing lots of pressure to build up (which is important), and then the weakening by the drilled holes comes in by allowing it to buckle.
Whereas the cut marks were very neat and sharp (inside the groove) which created a stress riser, causing it to break so early.
I think what you ought to do is get some claw hammers and try with that! AND ALSO weld two of them together, head-to-head, so that you're crossing against both claws... 😏
(You will probably need to grind a tiny groove in the pressing surfaces, to prevent the claw end from slipping out so easily/early)
Lastly, since bearings like to explode violently in certain circumstances, I wonder if removing any grease and then filling up all the voids with high-carbon metal powder (like for knife making), if that would yield anything interesting? Like whether or not the initial sparks would cause some of the powder to ignite in a chain reaction... 🤷♂️ _(or maybe magnesium...? 🥴)_
The wrench with no weak spots during the VPN ad was surprisingly funny for some reason.
It's like a square grenade with a handle glued on... Pressing play soon 😂
Usually I skip ahead any in video ads but this man figured out how to get people to watch them. You also made pinhead hammers.
That big hammer was pretty good. That break to the left was crazy
if you try it again, id try to avoid the cuts on the handle area. its already a weak spot, it doesn't need cuts thinning the material around the handle. the end to end cuts probably aren't hurting too much but the ones parallel to the handle are probably more detrimental to the detonation were hoping for.
all of these started their deformation on the handle too.
I wonder if the hammers could be made to explode if it is hardened after the pre fragmentation?
That would help dramatically. That, and not grooving right on top of the handle holes 😂😂
Do this with whatever ball bearings are made of, get a small block and cut shallow cuts into it then crush it, it will explode, with sparks.
Have you tried crushing a stack of metal washers? I guess there will be more friction than a stack of playing cards but if you grease them it could be... interesting!
Edit: Maybe a stack of alternating metal washers and a couple of playing cards?
The "aha" after the second hammer failed right away killed me 😂
7:40 the camera was like “I CANT WATCH” lol
I think metal is generally hard to explode, it will just bend. They teach it for like three years in the characteristics of metals, metals are malluable and ductile
Not all metals. Did you see the example with the wrench ?
4:30 " turns out, there's a difference between hammer, and frag greande"
- sun tzu, art of war
That last hammer was like, "F*** this, I'm out!"
Nord VPN should be paying you extra.
An add that I couldn't just skip through
"Don't try this at home" Everyone with their Kenmore kitchen presses, grumbling angrily, and putting their precut hardened steel hammers back in the junk drawer.
Heat treat one so it's as hard as it can be and press it without tempering.
It looks to me like the metal inside the hammers cooled very slowly, causing a coarse crystal structure that weakens it to crushing. That’s normally not an issue because the outer layer cooled quickly and holds the rest together when you’re just using it as a hammer.
should have had melons or ballistic gel next to it, and then harden them way beyond usable hardness to make them even more brittle.
Just as the second hammer was about to go bang, we had a power cut as we were watching and the whole house went dark 😆
the side cuts near the handle holes are the first fail point on every single one
I love how he's trying to make a MIRV grenade out of a hammer xD
Are those cast iron hammers? I've never seen one that wasn't forged.
the explody ones are somekind of cast metal. It's pretty hard to cut with grinder but not as hard as the last hammer.
Only a few seconds into the video and my survival instincts start tingling.
It looked like the failure of the handle in the middle of the steel head changed the forces and there was an almost immediate collapse of the head every time. A solid block would probably work better.
You're the best salesman on TH-cam! You had me "worst idea".
"This is going to explode, I- oh..."
I like how you say don't try this at home like everybody has 120-ton press
At 1:55, the less expensive hammer's head decided to become a banana, I love it!
The inside of the hammers looked like they were made by sintering the metal.
You should put NO cuts around the handle, and only cut it in the solid block parts.
It seems like all the strength is in the case hardening. The cuts go through to the soft core. Not at all what I was expecting.
Did he say 'spressial'?
Or is my brain playing tricks? 🤣🤣🤣🤣
You telling me I've put over 500 kg of force on a wrench with a cheater bar? I also need to know how much force it takes to break breaker bars
The weak spot is where the handle fits through the hammer. Cut out that piece to make two smaller pieces. Then try again.
Great videos - thanks 👍🏻👍🏻👍🏻
I haven't seen these vids for a few years, I'm so happy to hear the charming finnish accent hasn't changed a bit :D
I can't believe you keep coming up with great video ideas
I still think that ball-bearings are not only cooler to look but also more dangerous 😉
Fuck me, I jumped when the hammer exploded.
For some extra powerful explosions I recommend to add some air to the hydraulic cylinder.
Mans made a frag gernade
My internet security without a weak spot bounces back to almost normal. I use that as takeaway from this test.-)
Wait what? Do they sell hammers based on how well they explode instead of how well they hit things? What manufacturers do that?
Will powder inside fireworks be set off by the press?
I wouldn't ask if you weren't in a metal shop but since you are, maybe you could make uniform sized test samples out of metal from several brands of hammers or other tools? Like 40mm dia x 40mm cylinders. Or even cut several samples from the same piece of stock and give them different treatments, like different heat treatments, shot peening, liquid nitrogen, and etc.
Also I hope your wife will return to the show, at least every now and then, even if it is just to laugh in the background off camera. She was the black pepper on the show's licorice.
The interaction between the two of them was what gave the channel character
Now it's just him breaking things
What happened to his wife?
@@Syclone0044 I'd guess burnout which after a decade or so would be understandable. I keep wishing she would rejuvenate and try a less demanding schedule. I want my black pepper licorice dangit:-)
@@carpediemarts705 It is still good imo, but it was better with her. Seeing how stuff breaks is useful to me when trying to build stuff so it probably won't break, and it is fun to watch, and he still makes me laugh.
You're grooving around the hole the handles fit into, and creating a weak spot. The grooving is a great idea, just not there man 😂😂
you've essentially just made a frag grenade
The most explosive hammer would be a wooden mallet.
thankfully I don't have to worry about my hammer exploding when i'm doing odd jobs around the house, thanks for testing this
Make a brass hammer and then cut SHALLOW (just a 1-2mm max), WIDE (4-5mm) "trenches" instead of grooves. Get a third piece of poly to protect yourself.
too bad the last hammer escaped ... this would've looked like a firework if it exploded
In conclusion: Books explode better than hammers.
curious what material are the press heads made of (is it steel)
You are pretty good at bad idea's. Lmfao
Needs a bunch of pins in there, methinks.
If you really want to see a hammer freaking explode get a ball peen hammer, it's basically just two steel ball bearings on either side of a stick, and we have seen just how freaking dangerous crushing ball bearings is
The groves provided weak spots to explode from, without them you’d get much bigger explosions
The hammer is only fine metal sand coated with STRONK finnish, when you cut the finnish it is just fine metal sand. Thank you!
I think that ball bearings were more dangerous.
I think you should do this again, but freeze it in a block of ice between the grooves.
the different between crushing cool shit, and trying to make a viral video by pre cutting hammers
What happened to Anni and the dealing with of the playdoh critters?
Oh no, not the Hellraiser hammer!
wrench go boing
You needed harder metal. The cuts allow more flexibility. Maybe if you cooled it with liquid nitrogen...
And also, I have suggestion. Last week I used the stairs at work, metal stairs bolted with like 12mm bolts (2 on each side) to the walls. How much force does a 12mm bolt take (how many ppl can stand on that step)?
Too many variables to input, would need specs of the bolts and material to give an estimation
@@snikrepak In college I could calculate it, was really easy. Like the diameter of the bolt and a constant for stainless steel. 'Tau' I believe it was "Shear strength".
You stress relieved them! Gave them a place to give. Also I miss the extra content!
7:40 **SuperMega trademarked heavy echo fart sound**
I've been watching this channel for over 4 years, and your weak command of English has remained exactly the same. It's actually impressive. Never change.
The VPN ad is awesome 😂
What if you freeze the hammers like you did before - that would be awesome!
Need to make a hammer out of paper if you want an explosion, I'd say.
Think you could press a bunch of stripped wire into decorative bowls and such? Obviously more setup needed with forms, but maybe something to improvise as a test?
Can't tell if it was more about hammers or nord VPN? 🤣
Future video maybe with a sledgehammer 😅
I think it might be partly the hole in the middle with the plastic, the edges at the middle there are weak so I think it's uneven when it breaks
A truck king pin with cuts in it would have a crazy result.
I bet you could get excellent results using anvils or steel blocks
Maybe add a shallow groove the size of the hammer/metal cylinder in the upper and lower tools to hold the hammer in place so it can't just slide out?
It looked liked the first sledge hammer was a cast then machined product, while the last one looked like it was forged. It would be interested to compare the two on thier own as metal blocks to see strength differences