This press has worked like a charm for my projects ua-cam.com/users/postUgkxajoEbapTfqWaadnqb04h6U576yxXp-FE . I didn't even secure it to my table top, mainly due to the fact that I was using a 15 lbs drill vise. It's not flimsy at all as to what others have claimed it to be. Make sure the locking nuts and levers are secured and there won't be any issues with light pressure and patience. I was able to drill through aluminum, plastic, and steel (steel took a while) with no problems at all. Yeah it took a little longer than a regular drill press, but I don't have the space OR the money for one.The instruction manual was worthless, but luckily assembling the press was intuitive. However, the manual would be good for ordering replacement parts if needed. There is a nice breakdown of the parts that are included in the kit. Before ordering, make sure it is compatible with your unit, it is clearly stated what models the press is compatible with.This was an excellent purchase for $40!!
And I remember thinking before filming should I use also monochrome camera and run it with higher frame rate. But no I thought nothing that fast is not going to probably happen and I didn't use it :D And if you build same setup it's not going to never do the same thing again, that's sure. Fastest thing that I have seen from the press are really tiny particles out from exploding ball bearing, those can go around 1000m/s.
@@HydraulicPressChannel You can actually recreate this with a really fine EDM cut hole on the side of a small piston which gets pressed in a pocket filled up with play doh. That would be interesting in slow mo!
This guys narrative is the total success of this channel! It’s freaking hilarious. Between the cheesy jokes and the hilarious accent, it’s gold. He can make crushing random things hilarious.
I mean haven't we all done that? Start yanking on the handle to the drill press, wondering why it's not cutting, and only realizing the mistake once there's half a twist drill embedded in you chest? Like come on man, it happens to everyone.
Years ago I've had a drill bit explode on me while drilling and not wearing any eye protection. Couple debris went straight into my left eye, fortunately they didn't cause much damage and got easily removed in the hospital. Definitely learned two lessons from that though: always wear eye protection when drilling, as well as never buy cheap chinese drill bits.
I used to work with a guy that wasn't so lucky. He had a glass eye. Apparently he was drilling into a truck frame with a Chinese drill bit and it shattered.
You got lucky Puri. As did the watermelons. Steel at that speed needs quite a distance to slow and stop. The safety glasses worked better than expected, nice! Once the end of a long piece of 5 cm wide steel banding hit my safety glasses. It put a 1/2 mm deep cut in the lens right in front of my eye. Scary! And thank you Uvex and all the rest for your quality glasses.
This really illustrated for me how amazing safety glasses are. Protecting from a sharp piece of shrapnel flying faster than you'd ever be able to react to is pretty crazy.
That in my opinion was an excellent demonstration of the importance of safety glasses. It would have been interesting to see the damage that would have occurred without them in the same scenario. Thanks for the great content.👍
Yes, unfortunently whats more important than glasses is having a home and shop for a reason so before work you have all your safety gear organised so that when you do work, your glasses are clean, you have clothe to protect from exploding objects! Wait and about that, why is safety gear so expensive?
During normal use of a drill press you don’t push on it with 10000kg, not even 10kg. I’ve never broken a drill bit just by downward pressure in my life so that’s just bs. But sure, safety glasses are a good thing to wear anyway.
I think this also demonstrates the importance of hearing protection. A decibel meter would be an interesting addition just to see how loud these explosions are
it's actually a morse taper adapter, not just morse taper. the tail stock and drill both have a morse taper but they're not a match... hence using an adapter.
I think putting the drill bit through a melon then crushing it would be interesting, just gotta try to not crush the melon itself. It would show how much force is behind the pieces for sure but it would probably be real messy. lol
Am I the only one thinking that the moral of the story is "Never forget your safety glasses"? They work way better than I expected in that crazy hoodrawlic scenario
"hoodrawlic" LOL. But I think the pronunciation may be like the German "Ü" (U-umlaut) - which is difficult to emulate using an English word example if there is one.
@@billr3053 Yes, the Finnish Y is pronounced the same as the German Ü. The word hydraulic has been loaned into Finnish (in a slightly different form) and so people also tend to pronounce it in English similarly to the Finnish pronunciation ("hüdrowlick"). While the correct English pronunciation would in Finnish literation be written as something like "haidroolik".
Great channel! Good ideas too. The wood drill is called an "Auger" The conical drill holder is known as a "Morse Taper" Yes the safety glasses work but I had a friend whose retina detached after an impact on his glasses, he lost sight in that eye. So, regardless of safety glasses make sure any likely impact is likely to be very light or avoid it at all costs. Your eyes are super precious, don't find out the hard way.
Have you seen the video of Kentucky ballistics with the failed 50 caliber rifle? If he had been wearing safety glasses it definitely would have taken his eye. As it was it broke all the bones around the eye but did not cost him his eye. That video is a great warning too. He was shooting military surplus rounds that had been bought on the secondary Market. I'm convinced that he came across a spiked round. Sometimes in theaters War would there a significant theft of materiel, some weapons & ammunition are "spiked" or set up to fail. Filled with far more propellant, or high explosive instead of propellant, to cause the weapon to fail injuring or killing the user. The manufacturer and Kentucky ballistics themselves have done a pretty decent analysis including replicating the failure by loading around with enough propellant to cause it to produce at least four times normal pressure. But they have not done the one test I would add which is to test for high explosives. In any case, safety glasses definitely saved his sight and may have saved his life because any more injuries might have been too much for him to survive. As it is you should definitely go watch that video, he had to Jam a thumb in his neck to stop the bleeding from a lacerated jugular vein. He very nearly died.
@@thebarkingmouse You need a slight edit as it sounds like he WASN'T wearing safety glasses at the beginning of your explanation. Other than that, good post because I watched that as well. He fired off his remaining slap rounds (same batch as blew up that day) and although those didn't give the same result, most of them were grossly over pressured.
I once had a 5mm HSS drill break, and wizz past my ear. It was not a nice experience. And I was wearing safety glasses. In 40 years + I have had about 15 to 20+ breakages. Mostly drilling sheet metal. We sometimes get steel that has surprises inside. Very hard stuff that jams drill bits, and then they break. Great videos. Kind regards, and greetings from Africa.
I’ve never drilled something with literal tons of pressure, but I’ve had bits explode in CNCs and industrial drill presses and they usually just break and fall apart. Although the bigger, well big for me was 10mm, did shoot a bit of shrapnel due to how hard the the downward pressure was, but nothing deadly
Always feel like wearing safety glasses when watching this channel, I always wear them at work because I've had drills break and I like being able to see. Awesome video. 👍👍
Hey I just had an idea; How about you put a calibrated whiteboard with measurements on it to graph the distance over time more accurately? Basically think the Mythbusters highspeed backdrops. It can't be too hard to print out a piece of paper with some black lines, but you'd have to put it at the right distance to get it to look right.
Kinda pointless because you don't know exact angle at which shrapnel is traveling. You would need multiple camera angles and complex math to determine exact speed.
@@xpelestra No you wouldn’t. You need only a couple simple pieces of data. The distance between the lines and an accurate clock. No complex mathematics needed for determining the speed of a fragment of material.
I can usually measure items from the picture and use that. For example here the drill was 100mm out when the playdoh went so it's pretty easy to estimate from there.
@@doclee8755 if the shrapnel was traveling in one dimention yes, but if it travels towards the camera whilst traveling along a horizontal path it will appear to move slower due to its trajectory.
@@EdwardGordington It still doesn’t matter. At the point of failure ALL fragments will be traveling the same velocity, outwards in ALL directions. Particle size will matter in total distance, but the initial velocity of the fragments are proportional to force applied to failure. Without getting into elastic limits and fracture points of a material with stress over strain curves, we’re talking about a fairly rough calculation for fragment velocity. They will be traveling out in all directions under the same initial force. This can be looked at similarly to explosive physics. It’s this circumferential distribution that makes it more simple by fragment velocity of time over distance. That was my initial point. No complex analysis is needed for that. We can get complex using the same analysis in the Mott’s model. It deals with fragmentation velocity extremely similar to what happens here. It’s part of detonation and explosive work. But the question was finding fragment speed after it “exploded” and was simple time and distance.
Remember, drills aren't meant to always feed in hard or take a lot of pressure. It depends on what they're meant for. A lot of times in machining the challenge is finding the right tool, feeds, and speeds to preserve the cutting edges, get a required finish, and evacuate material.
Yep and the larger sizes take so much force to explode that I think that no CNC or manual machine can apply it. But you can also explode these by driving them sideways into the material etc. so you can get exploding drill bits while machining and I have seen many accidents with them. So wear your safety glasses and close those machine doors :D
@@HydraulicPressChannel and that's a fortunate thing. Hate to say it, but I'm glad I don't have to use the manuals too often. Always get paranoid about securing the work-piece and tools.
@@HydraulicPressChannel Have you seen the video of Kentucky ballistics with the failed 50 caliber rifle? If he had been (edit: NOT been, stupid autocorrect) wearing safety glasses it definitely would have taken his eye. As it was it broke all the bones around the eye but did not cost him his eye. That video is a great warning too. He was shooting military surplus rounds that had been bought on the secondary Market. I'm convinced that he came across a spiked round. Sometimes in theaters War would there a significant theft of materiel, some weapons & ammunition are "spiked" or set up to fail. Filled with far more propellant, or high explosive instead of propellant, to cause the weapon to fail injuring or killing the user. The manufacturer and Kentucky ballistics themselves have done a pretty decent analysis including replicating the failure by loading around with enough propellant to cause it to produce at least four times normal pressure. But they have not done the one test I would add which is to test for high explosives. In any case, safety glasses definitely saved his sight and may have saved his life because any more injuries might have been too much for him to survive. As it is you should definitely go watch that video, he had to Jam a thumb in his neck to stop the bleeding from a lacerated jugular vein. He very nearly died.
A very good demonstration of how important safety glasses are! And some nice crushes too. I think the wood drill was my favourite because you could see it deforming.
True! I always have my eyeglasses made with OSHA/MSHA/NIOSH rated polycarbonate! Just for the times I don't put on serious eye pro. I have a pair that were destroyed a few years ago. Titanium frames. Got an "object" that hit me in the left eye. Bent the frames, badly scratched the lens but didn't break it. Hospital trip and they were thinking I had broken the eye socket/orbit and did CT scan. Black eye for quite a while. Funny thing is the glasses were replaced under "Warranty" and they let me keep the smashed ones! 😁
@@PhilG999 yes, I never skimp on safety glasses. You can always buy goggles very cheap but I prefer to buy from a reputable source and brand (beware of knockoffs!)
9:06 look at the sparks. Very long and orange, with yellow bursts at the end. Very tough steel with a lot of manganese (I suppose, that would be typical for drills and alike.), and a little bit of carbon that makes those yellow bursts. That stuff is a beast. Compare to a file, which has a high carbon content. Those sparks look like a firework sparkler.
It's likely M2 High speed steel. 0.9% carbon, 4% chromium, 5% molybdenum, 1.9% Vanadium and 6.4% tungsten, balance iron. Hardens to 64 Rockwell C, and barely softens when red hot (it is tempered at 520 degrees C). This is the standard material for drill bits, turning tools, high quality taps and dies, etc.
Would be interesting to see what things like playing cards, wood, or hockey pucks would do to "stunt produce" that is a bit more fragile like tomatoes, apples, or lettuce.
Try axialy pressing the inner ring of ball bearing out. Make a tool that sits outer ring and prevents it from radially expanding and axially moving. Make a shaft that fits the inner ring and has a step that will axially push the inner ring out. Try with and without restricting radial expansion of outer ring.
I used to work for a CNC machine manufacturer. Lathes and mills. I was shocked at how little testing they did. And how their software releases were uncontrolled. Customers would call up screaming about broken tools flying into things. They literally had no test team. I did my best to get them to test products before they shipped them and to control their software releases. Ultimately it was one of the reasons I was let go.
I have exploded 10.5mm hss drill on a machining center, it seized on stainless and the twisting loaded enough energy to the drill that it was like shotgun blast in the machine. Roughly 8mm piece hit the tempered multi layer safety glass braking four of the five layers. Same has happened with 16mm tap. And many machinist run open machines without safety shields.
Twisting could load even more energy on these than just pushing and bending so definitely not good thing to have happen. I think I should try to recreate that and film it on high speed :D
@@MJPilote Glass, no matter the tempering, really isn't good material for impact protection except for surface layer. Neighbour who makes and installs window glasses said that once he had put impact resistant "safety glass" (really polycarbonate with some surface treatment/s) into excavator working in quarry. Next day quarry's owner had called that excavator driver had done "emergency dive" with almost head size rock from rock crushing flying straight toward his face. Really loud bang (and propably change of pants) later they found couple cm long scratch from that safety "glass".
2:01 i looked away just when he prepared the drill bit and looked back without knowing about the play-doh, and was just sitting there looking like "O.O" the fuck just happened why did the drill bit puke!?
A few years ago I had a small twist drill bind up in a steel rod I was drilling (the vise wasn't clamped down tight enough and the work shifted) and the twist drill exploded. A fragment hit my safety glasses almost dead-center to my left eye.
@@LordOfChaos.x When you have the polycarbonate doors closed on a CNC machine... those are thicker than safety glasses. With manual work, always the safety glasses.
Another thing that might work for the shrapnel test is a balloon. You'd have to use small balloons to make sure they are full enough so that the rubber doesn't just bounce but break.
I try to get even more light there for next time so we can film with higher frame rates. I can get decent picture with around 10 000 fps with my own cameras so that's already plenty fast but I need more light.
As safe as these? ua-cam.com/video/DG9Izqp6WWU/v-deo.html Now that must have been world record acceleration for Tesla... ua-cam.com/video/UqOlhNqIWVw/v-deo.html ua-cam.com/video/fnp78KYhO5w/v-deo.html
I was listening to some of the awesome sounds that you get from the press and I think you should do a collab with Andrew Huang! He makes really great music with sound samples from all sorts of unexpected things. HPC sounds would make some fantastic tunes!
I learned that drill bits explode while using one as a hole puncher with a drill press in college. Luckily the lab supervisor wasn’t in the room at the time so I didn’t get in trouble.
at 11:54 I think the video was slowed down even more using AI frame interpolation. There are some weird movements of the shrapnel pieces and the surrounding of them which is not present in the clip right before this one. I may be mistaken but, I really thought of using this technique to further slow down the slo mo footage. Great work!
As someone who wears safety glasses daily, NEVER underestimate what you're working on. I have been to the ER getting orbital CT scans and all sorts of medical over the most seemingly innocent work all because I didn't have eye protection for brief moments. I have no doubt that my diligent use of safety glasses, during the more dangerous daily work, has saved my eyesight many times. I am sure I have also been lucky many more times.
I taught machine shop in College for 20 years. My biggest challenge was getting my students to WEAR THEIR SAFETY GLASSES! Some may have hated me for my constant nagging, but we never had an eye injury. Hopefully the lessons stuck. The older I get the more safety conscious I get. Too many close calls, I suppose.
"Don't try this at home". What else would I do with a 120t hydraulic press, which I casually have in my kitchend, just like everyone else has? No, seriously, I had my lesson. Back in the days when I still was a machine operator, I once sunk a 14mm (0.55") carbide drill bit in a steel plate. Wrong button, the milling machine was going with rapid feed rate instead of really slow to touch off on the surface. I had the safety doors open, standing right in front of the opening, as I was about to touch off, and the shrapnell was flying past me. The same moment the drill bit hit the surface, my colleague 5m further away was screaming, touched his ear, and had blood on his fingers. Luckily just scratches, nothing serious. But still to this day I wonder how I didn't get hit by any shrapnell at all. If that would have hit me in the face, it definitely wouldn't have been a pleasant experience. So my takeaway was, use safety glasses. Even if you just touch off, not planning to make any swarf in that moment, it might still make the difference between reading the label on your beer bottle yourself or having to ask someone to read it for you.
"I add friend to safety glass guy, and he's not so wise guy as safety glass guy.... I don't think it's going to be pretty" -classic Hydraulic Press Channel quote
Out of all the videos you've done, on both channels, the most important thing you've taught us is: " Wear the gd safety glasses!!!". Maybe you've saved a lot of eyes with that message, wouldn't that be great?
I once used a 2mm drill to unblock a mig torch. Just for poking, not drilling. It snapped, and a microscopic shard ended up in my eye. Had to be surgically removed. It never occured to me that I needed safety glasses to poke around with a stationary drill bit.
This reminds me of the hard lesson I learned about not smacking two hammer faces against each other, I was chopping wood and had an axe get stuck so I figured I’d drive it the rest of the way with a hammer. The hammer head chipped and sent the chip into my chest. It didn’t penetrate too far but if it would’ve been my eye I would’ve lost it without any doubt.
I'd be fully blind today if my boss told me to wear them or go home. I was young and stupid at that time and thought I was invincible haha. Two minutes after putting them on the sanding wheels broke and got me in the face and would of been both eyes if it wasn't for the safety glasses. I don't mind the scars on my face but at least I'm not blind. Ever since that day 20 years ago I always wore them.
What if you put a drill bit or other steel rod through a melon, or whatever poor thing you want to destroy, and then press it while it's through said object? Might make some cool footage.
Really enjoyed watching this video! I think you should insert the drill bit inside the watermelon and then press on it. Might need to hire a clean up crew.
Your cone shank drills are called Morse taper here in America. Next time you blow up drill bits, get a ballistic gel hand and have it grip the drill bit as it explodes
Hey Lauri, how about forcing a broach to break? I've always watched people using those on presses and wondered what would happen if it bent or got stuck...
Those drill sleeves in English... Morse Taper sleeves PS. A colleague of mine broke a 3in drill bit once... My record is 32mm lol (it was old and blunt and I was a naive new machinist) The worst thing is breaking a tap in a hole. Damn near impossible to get out again
Martensite steel is what gets formed when superheated steel is cooled in a quench. It's MUCH harder than un-tempered or annealed steel (ie it takes more newtons to deform) which means you can cut normal steel with martensite steel. This is a prime example of why it's not used more though, because when it DOES take enough pressure to deform, it doesn't bend or dent, but fractures at insane speeds. One way to get around this is to quench ONLY the cutting edge, leaving the spine of the metal a softer steel. We see that with the bit at 4:50.
@Alfred Wedmore Yes. That is a more detailed version of what I said. I am not an expert on blacksmithing enough, and it's a youtube comment section so I assumed the audience wasn't experts either, so I used terms like "superheated" instead of "above the transition temperature" (and I forgot the word "temper" so I used "annealed" like an idiot). The only issue I have is that I don't think the drill bit at 5:00 is hard all the way to the spine, given how it bends and tears rather than snaps. I think it was given a differential temper so that the cutting edge was hard. But again, not an expert, no clue what PVD is, so I might be a wrong idiot.
Nice video! It would be very interesting to see a comparison between HSS and carbide drills, what kind of force they take to brake and how exactly they break :D
The recoil in the press is pretty impressive. I am sure if you saw it in person it would seem super rigid, but obviously it deflects and stores a lot of energy.
The takeaway you should have is that always keep your drill ends sharp, that way you minimize the amount of pressure you physically are forced to exert in order to drill a hole.
I'm amazed you were able to cut some of those larger drills with the bandsaw. They must have a differential heat treatment to make the lower part of the shaft less likely to break.
Pretty sure that was not a shockwave and rather just artifacts from software trying to estimate frames between frames to slow the high speed video down more. It could only be seen like that there.
Wrong channel. Hydraulic PRESS channel, not hydraulic TWIST channel. Two different forces. Two different machines. However, this one is still the most relevant since it it is downward force of the drill that is under heavy load. While the drill bit is meant to spin, the material is NOT meant to twist.
This press has worked like a charm for my projects ua-cam.com/users/postUgkxajoEbapTfqWaadnqb04h6U576yxXp-FE . I didn't even secure it to my table top, mainly due to the fact that I was using a 15 lbs drill vise. It's not flimsy at all as to what others have claimed it to be. Make sure the locking nuts and levers are secured and there won't be any issues with light pressure and patience. I was able to drill through aluminum, plastic, and steel (steel took a while) with no problems at all. Yeah it took a little longer than a regular drill press, but I don't have the space OR the money for one.The instruction manual was worthless, but luckily assembling the press was intuitive. However, the manual would be good for ordering replacement parts if needed. There is a nice breakdown of the parts that are included in the kit. Before ordering, make sure it is compatible with your unit, it is clearly stated what models the press is compatible with.This was an excellent purchase for $40!!
Can’t believe how fast the play doh shot out!
I do believe it deserves its own episode. Can we get play doh to exceed the speed of sound with a 150 ton press? Either way it would be cool...
And I remember thinking before filming should I use also monochrome camera and run it with higher frame rate. But no I thought nothing that fast is not going to probably happen and I didn't use it :D
And if you build same setup it's not going to never do the same thing again, that's sure. Fastest thing that I have seen from the press are really tiny particles out from exploding ball bearing, those can go around 1000m/s.
@@HydraulicPressChannel You can actually recreate this with a really fine EDM cut hole on the side of a small piston which gets pressed in a pocket filled up with play doh. That would be interesting in slow mo!
How about doing the same thing but the drills are inside the melons?
whitout daubt a collab betwen you guys would be great!
Using the drill bits to make the holes used to smash them is like making them dig their own grave
Not as bad as cooking a kid in its mothers milk (if you get the reference).
He used the stones to destroy the stones..
This guys narrative is the total success of this channel! It’s freaking hilarious.
Between the cheesy jokes and the hilarious accent, it’s gold. He can make crushing random things hilarious.
By carefully analyzing all the footage provided, I came to conclusion that your drillings failed because you forgot to turn your drill on.
Made me smile!
Adam Savage - "Well, there's your problem"
I mean, more specifically, the speed was too low.
Feed was fine, just needs a few more rpms.
🤣🤣🤣🤣🤣
I mean haven't we all done that? Start yanking on the handle to the drill press, wondering why it's not cutting, and only realizing the mistake once there's half a twist drill embedded in you chest? Like come on man, it happens to everyone.
Years ago I've had a drill bit explode on me while drilling and not wearing any eye protection. Couple debris went straight into my left eye, fortunately they didn't cause much damage and got easily removed in the hospital. Definitely learned two lessons from that though: always wear eye protection when drilling, as well as never buy cheap chinese drill bits.
I'll second that. The other week I had a cheap 8mm bit bind and explode on me. Bit of a shock since I'm used to cheap bits just snapping.
@@bradcavanagh3092
*The cheap drill bits*: "you underestimate my power." -explodes
I used to work with a guy that wasn't so lucky. He had a glass eye. Apparently he was drilling into a truck frame with a Chinese drill bit and it shattered.
You got lucky Puri. As did the watermelons. Steel at that speed needs quite a distance to slow and stop. The safety glasses worked better than expected, nice! Once the end of a long piece of 5 cm wide steel banding hit my safety glasses. It put a 1/2 mm deep cut in the lens right in front of my eye. Scary! And thank you Uvex and all the rest for your quality glasses.
You should never buy cheap things if you know they will be used for stressful aplications
After all these years you are still coming out with great ideas
Lets say great bad ideas :D
He should put someone’s head in there. That’s a really good idea
@@brainache555 ok. great bad ideas.
And I still physically jump with sudden failiures.....
Too much time working in factories, I guess.
This really illustrated for me how amazing safety glasses are. Protecting from a sharp piece of shrapnel flying faster than you'd ever be able to react to is pretty crazy.
Equally impressive that they stopped pretty much all the shrapnel.
@@InsufficientGravitas Most people dont drill using a Hydraulic Press.
@@majicogarcia8417 I know, but every single time the shrapnell went towards one of the melons it hit the glasses.
That in my opinion was an excellent demonstration of the importance of safety glasses. It would have been interesting to see the damage that would have occurred without them in the same scenario. Thanks for the great content.👍
Unfortunately, now we will never know what is inside a waterlemon.
@@7531monkey lmao that made me laugh.
Yes, unfortunently whats more important than glasses is having a home and shop for a reason so before work you have all your safety gear organised so that when you do work, your glasses are clean, you have clothe to protect from exploding objects! Wait and about that, why is safety gear so expensive?
Norm Abram would definitely approve:)
During normal use of a drill press you don’t push on it with 10000kg, not even 10kg. I’ve never broken a drill bit just by downward pressure in my life so that’s just bs. But sure, safety glasses are a good thing to wear anyway.
I think this also demonstrates the importance of hearing protection. A decibel meter would be an interesting addition just to see how loud these explosions are
5:10 The cone shape you are referring too, is called, Morse Taper.
it's actually a morse taper adapter, not just morse taper. the tail stock and drill both have a morse taper but they're not a match... hence using an adapter.
The larger bits had a morse #2 taper, the adapter was to go from #2 to #3 morse taper.
And we call the wood boring bit an "auger"
what is the breaker bar, that is inserted... to loosen the drill from adapter?
@@hunterws I forgot for sure, I think it's a "drift"
I think putting the drill bit through a melon then crushing it would be interesting, just gotta try to not crush the melon itself. It would show how much force is behind the pieces for sure but it would probably be real messy. lol
Was just gonna mention this. Exploding shrapnel coming from within :O
Am I the only one thinking that the moral of the story is "Never forget your safety glasses"? They work way better than I expected in that crazy hoodrawlic scenario
"hoodrawlic" LOL. But I think the pronunciation may be like the German "Ü" (U-umlaut) - which is difficult to emulate using an English word example if there is one.
I just use the safety squint 😉
@@billr3053 Yes, the Finnish Y is pronounced the same as the German Ü. The word hydraulic has been loaned into Finnish (in a slightly different form) and so people also tend to pronounce it in English similarly to the Finnish pronunciation ("hüdrowlick"). While the correct English pronunciation would in Finnish literation be written as something like "haidroolik".
Great channel!
Good ideas too.
The wood drill is called an "Auger"
The conical drill holder is known as a "Morse Taper"
Yes the safety glasses work but I had a friend whose retina detached after an impact on his glasses, he lost sight in that eye. So, regardless of safety glasses make sure any likely impact is likely to be very light or avoid it at all costs. Your eyes are super precious, don't find out the hard way.
Thank you for demonstrating why safety glasses are needed. This video has made me laugh too hard. Keep up the amazing work 💜
I had a 10mm shatter.
A large fragment struck my forehead, its sharp end stuck in like a dartboard.
Have you seen the video of Kentucky ballistics with the failed 50 caliber rifle? If he had been wearing safety glasses it definitely would have taken his eye. As it was it broke all the bones around the eye but did not cost him his eye.
That video is a great warning too. He was shooting military surplus rounds that had been bought on the secondary Market. I'm convinced that he came across a spiked round. Sometimes in theaters War would there a significant theft of materiel, some weapons & ammunition are "spiked" or set up to fail. Filled with far more propellant, or high explosive instead of propellant, to cause the weapon to fail injuring or killing the user.
The manufacturer and Kentucky ballistics themselves have done a pretty decent analysis including replicating the failure by loading around with enough propellant to cause it to produce at least four times normal pressure. But they have not done the one test I would add which is to test for high explosives.
In any case, safety glasses definitely saved his sight and may have saved his life because any more injuries might have been too much for him to survive. As it is you should definitely go watch that video, he had to Jam a thumb in his neck to stop the bleeding from a lacerated jugular vein. He very nearly died.
@@thebarkingmouse You need a slight edit as it sounds like he WASN'T wearing safety glasses at the beginning of your explanation. Other than that, good post because I watched that as well. He fired off his remaining slap rounds (same batch as blew up that day) and although those didn't give the same result, most of them were grossly over pressured.
I once had a 5mm HSS drill break, and wizz past my ear. It was not a nice experience. And I was wearing safety glasses. In 40 years + I have had about 15 to 20+ breakages. Mostly drilling sheet metal. We sometimes get steel that has surprises inside. Very hard stuff that jams drill bits, and then they break. Great videos. Kind regards, and greetings from Africa.
Do you use stub drills for the sheet metal? You can regrind your broken drills to stubs, regards from belgium
@@orgonewarrior1604 Many thanks fi
Sorry for the typo. Many thanks for your kind reply. Yes I do, to both questions.
You should have at least crushed the watermelons at the end, just so no other melons get the idea that you're becoming weak and try to invade you!
Pootinmelons...
You gotta keep them in line or they try to walk all over you.
Put em'in the press!
@@stinkyfungus you vote biden don't you. you reek of "sexualizing minors is not grooming :)))"
LOL@pootinmelons!
I’ve never drilled something with literal tons of pressure, but I’ve had bits explode in CNCs and industrial drill presses and they usually just break and fall apart. Although the bigger, well big for me was 10mm, did shoot a bit of shrapnel due to how hard the the downward pressure was, but nothing deadly
Ah yes, the Biltema premium brand. Best joke I heard all day :D
Always feel like wearing safety glasses when watching this channel, I always wear them at work because I've had drills break and I like being able to see. Awesome video. 👍👍
I think you just made a Hollywood award-winning commercial for safety glasses. Mr. Watermelon would agree.
Hey I just had an idea; How about you put a calibrated whiteboard with measurements on it to graph the distance over time more accurately? Basically think the Mythbusters highspeed backdrops. It can't be too hard to print out a piece of paper with some black lines, but you'd have to put it at the right distance to get it to look right.
Kinda pointless because you don't know exact angle at which shrapnel is traveling. You would need multiple camera angles and complex math to determine exact speed.
@@xpelestra No you wouldn’t. You need only a couple simple pieces of data. The distance between the lines and an accurate clock. No complex mathematics needed for determining the speed of a fragment of material.
I can usually measure items from the picture and use that. For example here the drill was 100mm out when the playdoh went so it's pretty easy to estimate from there.
@@doclee8755 if the shrapnel was traveling in one dimention yes, but if it travels towards the camera whilst traveling along a horizontal path it will appear to move slower due to its trajectory.
@@EdwardGordington It still doesn’t matter. At the point of failure ALL fragments will be traveling the same velocity, outwards in ALL directions. Particle size will matter in total distance, but the initial velocity of the fragments are proportional to force applied to failure. Without getting into elastic limits and fracture points of a material with stress over strain curves, we’re talking about a fairly rough calculation for fragment velocity. They will be traveling out in all directions under the same initial force. This can be looked at similarly to explosive physics. It’s this circumferential distribution that makes it more simple by fragment velocity of time over distance. That was my initial point. No complex analysis is needed for that. We can get complex using the same analysis in the Mott’s model. It deals with fragmentation velocity extremely similar to what happens here. It’s part of detonation and explosive work. But the question was finding fragment speed after it “exploded” and was simple time and distance.
Remember, drills aren't meant to always feed in hard or take a lot of pressure. It depends on what they're meant for. A lot of times in machining the challenge is finding the right tool, feeds, and speeds to preserve the cutting edges, get a required finish, and evacuate material.
Yep and the larger sizes take so much force to explode that I think that no CNC or manual machine can apply it. But you can also explode these by driving them sideways into the material etc. so you can get exploding drill bits while machining and I have seen many accidents with them.
So wear your safety glasses and close those machine doors :D
@@HydraulicPressChannel and that's a fortunate thing. Hate to say it, but I'm glad I don't have to use the manuals too often. Always get paranoid about securing the work-piece and tools.
..... I'm just here for the destruction. Everything else doesn't matter.
@@HydraulicPressChannel Have you seen the video of Kentucky ballistics with the failed 50 caliber rifle? If he had been (edit: NOT been, stupid autocorrect) wearing safety glasses it definitely would have taken his eye. As it was it broke all the bones around the eye but did not cost him his eye.
That video is a great warning too. He was shooting military surplus rounds that had been bought on the secondary Market. I'm convinced that he came across a spiked round. Sometimes in theaters War would there a significant theft of materiel, some weapons & ammunition are "spiked" or set up to fail. Filled with far more propellant, or high explosive instead of propellant, to cause the weapon to fail injuring or killing the user.
The manufacturer and Kentucky ballistics themselves have done a pretty decent analysis including replicating the failure by loading around with enough propellant to cause it to produce at least four times normal pressure. But they have not done the one test I would add which is to test for high explosives.
In any case, safety glasses definitely saved his sight and may have saved his life because any more injuries might have been too much for him to survive. As it is you should definitely go watch that video, he had to Jam a thumb in his neck to stop the bleeding from a lacerated jugular vein. He very nearly died.
@@HydraulicPressChannel i can confirm
A drove a 50 mm diameter drill into a steel part sideways
The spindle didint survive it
A very good demonstration of how important safety glasses are! And some nice crushes too. I think the wood drill was my favourite because you could see it deforming.
5:28 "Oi! Satana!" I recognize that from My Summer Car!!
1:52 "Even the small drill send really fast shrapnel so I think this is going to be a great day."
Now that's a quote to live by.
The standards for safety glasses are fairly high.
And what should we say about those watermelon standards? They also seem pretty high to me.....🤔🤪
True! I always have my eyeglasses made with OSHA/MSHA/NIOSH rated polycarbonate! Just for the times I don't put on serious eye pro. I have a pair that were destroyed a few years ago. Titanium frames. Got an "object" that hit me in the left eye. Bent the frames, badly scratched the lens but didn't break it. Hospital trip and they were thinking I had broken the eye socket/orbit and did CT scan. Black eye for quite a while. Funny thing is the glasses were replaced under "Warranty" and they let me keep the smashed ones! 😁
@@PhilG999 WIN!
@@PhilG999 yes, I never skimp on safety glasses. You can always buy goggles very cheap but I prefer to buy from a reputable source and brand (beware of knockoffs!)
As somebody who drills steel nearly every day, I found this to be one of the most interesting HPC videos!
Having broken and bent alot of expensive drill bits in my career the noise they make in the video causes a visceral reaction in my mind🤣😅
I think I spent something like 200€ on drill bits while filming so could be lot worse :D Let's not test mill heads :D
@@HydraulicPressChannel and for HPC's final video, they press all their tools and go bankrupt 🤣
@@HydraulicPressChannel I exploded two annular cutters last week hand drilling in pitch. 180$ dollars each😅
9:06 look at the sparks. Very long and orange, with yellow bursts at the end. Very tough steel with a lot of manganese (I suppose, that would be typical for drills and alike.), and a little bit of carbon that makes those yellow bursts. That stuff is a beast. Compare to a file, which has a high carbon content. Those sparks look like a firework sparkler.
It's likely M2 High speed steel. 0.9% carbon, 4% chromium, 5% molybdenum, 1.9% Vanadium and 6.4% tungsten, balance iron. Hardens to 64 Rockwell C, and barely softens when red hot (it is tempered at 520 degrees C). This is the standard material for drill bits, turning tools, high quality taps and dies, etc.
Would be interesting to see what things like playing cards, wood, or hockey pucks would do to "stunt produce" that is a bit more fragile like tomatoes, apples, or lettuce.
Try axialy pressing the inner ring of ball bearing out. Make a tool that sits outer ring and prevents it from radially expanding and axially moving. Make a shaft that fits the inner ring and has a step that will axially push the inner ring out. Try with and without restricting radial expansion of outer ring.
that just a frag grenade with extra steps
That was a good one. Go bigger.
You might want to thicken your blast shield.
I think I have now 8mm polycarbonate there and the deepest dents were maybe 1-2mm with these so I think we are still good for size or two larger :D
@@HydraulicPressChannel Just mount the lower steel plate on the safety box the right way to prevent 'escapes'.😂
@@HydraulicPressChannel Good to know.
Faster camera needed!
I used to work for a CNC machine manufacturer. Lathes and mills. I was shocked at how little testing they did. And how their software releases were uncontrolled. Customers would call up screaming about broken tools flying into things. They literally had no test team. I did my best to get them to test products before they shipped them and to control their software releases. Ultimately it was one of the reasons I was let go.
I have exploded 10.5mm hss drill on a machining center, it seized on stainless and the twisting loaded enough energy to the drill that it was like shotgun blast in the machine. Roughly 8mm piece hit the tempered multi layer safety glass braking four of the five layers. Same has happened with 16mm tap. And many machinist run open machines without safety shields.
Twisting could load even more energy on these than just pushing and bending so definitely not good thing to have happen. I think I should try to recreate that and film it on high speed :D
I bet that livened up your day!
@@HydraulicPressChannel that would be very interesting to see on high speed!
@@allinaday3526 Yep it sure was, and having face next to the glass while watcing the drilling cycle didn’t help the jump scare any.
@@MJPilote Glass, no matter the tempering, really isn't good material for impact protection except for surface layer.
Neighbour who makes and installs window glasses said that once he had put impact resistant "safety glass" (really polycarbonate with some surface treatment/s) into excavator working in quarry.
Next day quarry's owner had called that excavator driver had done "emergency dive" with almost head size rock from rock crushing flying straight toward his face.
Really loud bang (and propably change of pants) later they found couple cm long scratch from that safety "glass".
2:01 i looked away just when he prepared the drill bit and looked back without knowing about the play-doh, and was just sitting there looking like "O.O" the fuck just happened why did the drill bit puke!?
you should always include safety-glasses-watermelon guy with the dangerous presses u do!
"Morse taper" is that cone-shape on the shank of the larger drill bits and almost unsurprisingly, that sleeve is called a "Morse taper adapter".
A few years ago I had a small twist drill bind up in a steel rod I was drilling (the vise wasn't clamped down tight enough and the work shifted) and the twist drill exploded. A fragment hit my safety glasses almost dead-center to my left eye.
Thats why i always wear safety glasses when doing any manual work
CNC closed doors ?
Nah
@@LordOfChaos.x When you have the polycarbonate doors closed on a CNC machine... those are thicker than safety glasses. With manual work, always the safety glasses.
Another thing that might work for the shrapnel test is a balloon. You'd have to use small balloons to make sure they are full enough so that the rubber doesn't just bounce but break.
I keep thinking that you need to collab with the Slow Mo Guys, i would love to see these things explod-- "get pressed" in 180,000 frames per sec.
I try to get even more light there for next time so we can film with higher frame rates. I can get decent picture with around 10 000 fps with my own cameras so that's already plenty fast but I need more light.
Based on those watermelons i'd assume these bits exploding is completely safe
This seems like a really safe experiment
Yep what could go wrong with flying really sharp steel parts :D
@@HydraulicPressChannel and the world's fastest Play-Doh.
As safe as these?
ua-cam.com/video/DG9Izqp6WWU/v-deo.html
Now that must have been world record acceleration for Tesla...
ua-cam.com/video/UqOlhNqIWVw/v-deo.html
ua-cam.com/video/fnp78KYhO5w/v-deo.html
5:32 classic finnish swearing, one of the reasons I watch every HPC video
I was listening to some of the awesome sounds that you get from the press and I think you should do a collab with Andrew Huang! He makes really great music with sound samples from all sorts of unexpected things. HPC sounds would make some fantastic tunes!
OOOOOH! I would love to hear that! Hydraulic press techno!
I learned that drill bits explode while using one as a hole puncher with a drill press in college. Luckily the lab supervisor wasn’t in the room at the time so I didn’t get in trouble.
I actually laughed out loud when you were talking about the watermelon and said "but don't worry he has the safety glasses on". Hilarious!
His sense of humor is pretty good.
at 11:54 I think the video was slowed down even more using AI frame interpolation. There are some weird movements of the shrapnel pieces and the surrounding of them which is not present in the clip right before this one. I may be mistaken but, I really thought of using this technique to further slow down the slo mo footage. Great work!
2:43 you can see the exact moment it hit the end of its stress-strain curve. It goes from plastic deformation to brittle fracture in an instant
Elastic deformation before brittle fracture*
As someone who wears safety glasses daily, NEVER underestimate what you're working on.
I have been to the ER getting orbital CT scans and all sorts of medical over the most
seemingly innocent work all because I didn't have eye protection for brief moments.
I have no doubt that my diligent use of safety glasses, during the more dangerous daily
work, has saved my eyesight many times. I am sure I have also been lucky many more times.
"Don't worry, he has the safety glasess" 🤣🤣🤣
They got blowed off his face.. omg they worked hahahahahahaah
In America we would call that the intermission drill lol
I taught machine shop in College for 20 years. My biggest challenge was getting my students to WEAR THEIR SAFETY GLASSES!
Some may have hated me for my constant nagging, but we never had an eye injury. Hopefully the lessons stuck. The older I get the more safety conscious I get. Too many close calls, I suppose.
"Don't try this at home".
What else would I do with a 120t hydraulic press, which I casually have in my kitchend, just like everyone else has?
No, seriously, I had my lesson. Back in the days when I still was a machine operator, I once sunk a 14mm (0.55") carbide drill bit in a steel plate. Wrong button, the milling machine was going with rapid feed rate instead of really slow to touch off on the surface. I had the safety doors open, standing right in front of the opening, as I was about to touch off, and the shrapnell was flying past me. The same moment the drill bit hit the surface, my colleague 5m further away was screaming, touched his ear, and had blood on his fingers. Luckily just scratches, nothing serious. But still to this day I wonder how I didn't get hit by any shrapnell at all.
If that would have hit me in the face, it definitely wouldn't have been a pleasant experience. So my takeaway was, use safety glasses. Even if you just touch off, not planning to make any swarf in that moment, it might still make the difference between reading the label on your beer bottle yourself or having to ask someone to read it for you.
"I add friend to safety glass guy, and he's not so wise guy as safety glass guy.... I don't think it's going to be pretty"
-classic Hydraulic Press Channel quote
Out of all the videos you've done, on both channels, the most important thing you've taught us is: " Wear the gd safety glasses!!!". Maybe you've saved a lot of eyes with that message, wouldn't that be great?
I once used a 2mm drill to unblock a mig torch. Just for poking, not drilling. It snapped, and a microscopic shard ended up in my eye. Had to be surgically removed. It never occured to me that I needed safety glasses to poke around with a stationary drill bit.
Definitely think some bigger drill bits are in order 😁 for erm.....science 🤣 not seen Anni on the channel for a while though, hope she's OK 😊
This reminds me of the hard lesson I learned about not smacking two hammer faces against each other, I was chopping wood and had an axe get stuck so I figured I’d drive it the rest of the way with a hammer. The hammer head chipped and sent the chip into my chest. It didn’t penetrate too far but if it would’ve been my eye I would’ve lost it without any doubt.
Morse Taper.
And bandsaw blades are probably softer than the drill. Angle grinder is the only way to cut them.
Carbide mill cutters.
I'd be fully blind today if my boss told me to wear them or go home. I was young and stupid at that time and thought I was invincible haha. Two minutes after putting them on the sanding wheels broke and got me in the face and would of been both eyes if it wasn't for the safety glasses. I don't mind the scars on my face but at least I'm not blind. Ever since that day 20 years ago I always wore them.
Hey Ma, where's our 50T hydraulic press, some funny man's saying I can't do this stuff at home.
What if you put a drill bit or other steel rod through a melon, or whatever poor thing you want to destroy, and then press it while it's through said object? Might make some cool footage.
What you should be learning from all of these videos is that you should ALWAYS wear your safety glasses.
Really enjoyed watching this video! I think you should insert the drill bit inside the watermelon and then press on it. Might need to hire a clean up crew.
We need to see how fast play dough spray can fly! 150 m/s already quite good baseline.
Idk if you can see the shockwave or the polycarbonate infront of the camera shaking at 11:55
Your cone shank drills are called Morse taper here in America. Next time you blow up drill bits, get a ballistic gel hand and have it grip the drill bit as it explodes
That safety glasses strike is a grim reminder of just how much they can save your eyes from destruction.
Yeah the eyes are fine... but I'm pretty sure attempt two was a pistol to the chest and the last was a shotgun lol.
I'm glad I'm behind my computer screen and not in the room with him LOL I love this guy Hahaha
Hey Lauri, how about forcing a broach to break?
I've always watched people using those on presses and wondered what would happen if it bent or got stuck...
Those drill sleeves in English... Morse Taper sleeves
PS. A colleague of mine broke a 3in drill bit once... My record is 32mm lol (it was old and blunt and I was a naive new machinist)
The worst thing is breaking a tap in a hole. Damn near impossible to get out again
Been there. Broke off a 17mm tap about 50mm deep. Took hours to get out even with the correct tools
Realistically it doesn't happen unless you press like a psychopath on the drill press
Hey you should put a long drill bit inside a watermelon and then press so that the shrapnel comes from the inside
Martensite steel is what gets formed when superheated steel is cooled in a quench. It's MUCH harder than un-tempered or annealed steel (ie it takes more newtons to deform) which means you can cut normal steel with martensite steel. This is a prime example of why it's not used more though, because when it DOES take enough pressure to deform, it doesn't bend or dent, but fractures at insane speeds.
One way to get around this is to quench ONLY the cutting edge, leaving the spine of the metal a softer steel. We see that with the bit at 4:50.
@Alfred Wedmore Yes. That is a more detailed version of what I said. I am not an expert on blacksmithing enough, and it's a youtube comment section so I assumed the audience wasn't experts either, so I used terms like "superheated" instead of "above the transition temperature" (and I forgot the word "temper" so I used "annealed" like an idiot).
The only issue I have is that I don't think the drill bit at 5:00 is hard all the way to the spine, given how it bends and tears rather than snaps. I think it was given a differential temper so that the cutting edge was hard. But again, not an expert, no clue what PVD is, so I might be a wrong idiot.
Nice video! It would be very interesting to see a comparison between HSS and carbide drills, what kind of force they take to brake and how exactly they break :D
5:09 In English it's simply a tapered drill , or a Morse tapered drill.
"I don't like this.. but Here We Go!!" 😅
Intermission would have also worked instead of half time show
I never expected that such affordable safety glasses can stand so much! 😃
Wear safety glasses for working! 👍
This was a fun one!
In Finland we have tis ting called välikevennys 😂😂😂
3:25 Sounds like you took some shrapnel to the gut. LOL
You should try this with tungsten carbide drill bits.
Wanted to see those melons explode lol that's some dangerous fun 😄
so the theory shows that th closer you are to th explosion, the safer it is lol
I'd love to see some mild steel, heated up to various temperatures and then quenched in oil. How it affects it in the press
Good idea. Temper test!
Drill explodes, everyone jumps. Looks about right!
The recoil in the press is pretty impressive. I am sure if you saw it in person it would seem super rigid, but obviously it deflects and stores a lot of energy.
The takeaway you should have is that always keep your drill ends sharp, that way you minimize the amount of pressure you physically are forced to exert in order to drill a hole.
I have a 2inch scar on my left wrist from a drill bit that jammed and exploded.
I wish he said: it’s watermelon time.... in slo mo
Where's Annie?
Those safety glasses really did protect the water melon.
Fun, interesting and instructive. What more to ask ?
Upvote if you miss the heavy metal theme tune!
Cheap slowmotion, do it right please
I'm amazed you were able to cut some of those larger drills with the bandsaw. They must have a differential heat treatment to make the lower part of the shaft less likely to break.
depends on the tool material too. If it's just HSS, HSS-E / HSS Co8 or HSS-E PM
The shock wave seen in the last high speed camera footage, 11:55 was amazing.
Pretty sure that was not a shockwave and rather just artifacts from software trying to estimate frames between frames to slow the high speed video down more. It could only be seen like that there.
It would be interesting to know how much torque these drills can take before breaking, maybe for part 2 ;)
The problem for that one is that his press is meant to apply a compression force, not a torque.
Wrong channel. Hydraulic PRESS channel, not hydraulic TWIST channel. Two different forces. Two different machines. However, this one is still the most relevant since it it is downward force of the drill that is under heavy load. While the drill bit is meant to spin, the material is NOT meant to twist.
He forgot to say IT'S WATERMELON TIME...never mind, wrong channel.