Dead blow hammer
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- Опубліковано 7 вер 2024
- Two hammers are dropped at the same time, one bounces up and down continuously, while the other hardly oscillates. This seemingly magical hammer is called a dead blow hammer.
Cutting open this special hammer, we can see inside there are many small iron balls or sometimes layers of steel coins stacked on top of each other. They are placed inside the hammer head in just the right amount and leave an empty space inside. When the hammer is struck down and collides with a hard surface, these internal components falling down will create a force counteracting the recoil generated by the hammer. The remaining kinetic energy will continue to be transmitted to the balls and steel layers, causing them to bounce inside. This means that all the kinetic energy has been distributed and the hammer cannot bounce back anymore.
Thanks to this feature, the dead blow hammer can control the impact force with minimal rebound, reducing damage to the surface. This is especially important for delicate work on structures that require high precision, such as jewelry making or assembling electronic components.
We did it boys. We got the no recoil attachment for melee weapons mod unlocked
Why youtube dont have "haha buton" :))
@@Facts5Minutesi found it 😂
Yeah first thought .. war hammer+ damage through block+no recoil omg 👿
Before gta VI off
But I just deleted my COD the other day, I can't use it either.
He's right. I use a dead blow hammer to fix all my sensitive electronics. Works like a charm. And they never bounce back from the fixing. They just die hence- dead blow
😂😂😂😂
Percussive maintenance 2.0! Next, they'll be selling us the AI enhanced hammer. When it hits your thumb, you won't be able to distinguish it from a human operated hammer. Freaking amazing, amiright?
Inductors, solenoids, transformers, parts of motors etc are all a prime candidate for this hammer in some crude ways. I really don’t think the narrator knows what they are talking about.
I’m definitely going to swap my soldering iron for a dead blow hammer!
😂😂😂Dude, you REALLY got 'em going in the comments! 😂😂😂
"the remaining kinetic energy will be transmitted to the balls" i felt that 😂
Oh goodness I hope not
Kinetic energy is stored in the balls
@@GewelReal potential energy is stored in the balls.
Literally
I used to feel that when I got bullied as a kid. Who knew I was just a living hammer lmao
Yes, as an IT professional I often find myself assembling laptops with large hammers...
What a coincidence, I typically find myself using hammers on laptops right after getting off the phone with IT.
Brilliant...I've done that with some of my problem electronics...problem sloved
PC Load Letter? What the F' does that mean?!?
I often use hammers outside electronic stores.
@@beepbop6697 It actually means load letter paper into the paper tray. That's the funny thing, it was just out of paper.
This is fascinating because when blacksmithing, the recoil is a feature and not a bug. It's honestly really cool how even a tool as "simple" as a hammer can have variations to its design that completely specializes the tool into a variety of different purposes.
I agree. I was surprised when I recently realised I have six different hammers (just for DIY). Different shapes and sizes. And still not enough. Next one (and hopefully last one) on the list is a rock-pick but they are expensive.
Much like a fist. Sometimes you get punched, sometimes you just get the finger.
I use a dead blow hammer every day with welding aluminum and stainless steel. My dead blow has a firm rubber exterior to prevent any markings or damage on the soft metals.
I like that your perspective is to admire the different types of tools rather than to say "I'm a blacksmith, the recoil is a feature, this is dumb"
Shows that you see the world outside of your own perspective
I'd like to see this on a warhammer, like focus all that force into the opponent's armor.
Having a deadblow hammer is no excuse for hammering a bearing into place; use a press.
Never ever ever. You could see the bearing wasn’t going in evenly. You can make presses out of stuff from Home Depot. Just search YT for your bearing install application if you don’t have the correct press better than the hammer.
First problem I seen 😂
Or like, if youre in the jungle or desert or whatever, use the old bearing as a dolly ffs
@@marktechsciBolt, washer, bushing (to protect interior bearing surface), washer, nut. Press fit works good but you could also liquid nitrogen and cold shrink the bearing
Country girls make do
Don't forget the aviation industry. Many times you'll be required to use a hammer and it's always a dead blow .
Unless you’re forming a new panel in which case you need a ball pein hammer.
@@silaskuemmerle2505 yeah there are a few times when you will especially if you're on a 152 but the dead blow is required on so many delicate and or expensive items. But often the panels, nacelles etc. have been removed prior to pounding.
Yup, if you don’t have a Deadblow at Weststar you’re not getting a hammer in the main building. We do have different hammers in the Sheetmetal shop, but that’s the only place we have them
Many balls and pounding in the comments 😮
I went from doing Structural Assembly mainly just drilling,riveting or Hi lock fastening and Sealing. But when i got laid from bombardier due to covid because i was a contractor i got a job a small Favrication shop and a hammer was on the list of tools i needed to buy. I showed up with a carpenters hammer my forst day and lucky that i knew most of the people in the shop for almost 8 years so the laughs and friendly pokes of fun at me werent that bad😂
You actually dont want this when forging
Recoil is not useful when forging. Unlike cold metal, hot metal doesn’t provide enough kinetic energy for proper recoil.
@@yellowbench18oh look, an expert😂
It's a rocket science kids🤣🤣🤣🤣@@jerzyfabjan1982
@@jerzyfabjan1982🗿
@@jerzyfabjan1982but he's right though unlike the guy who said you use this for electronics!
They are washers, not coins.
You got to it before me. Is English his first language?
What do they wash?
They're working at the car wash @@Mark-uk8wz
@@NotJRBThese shorts never seem to be written by native english speakers.
@NotJRB it's AI, take anything this channel says with a grain of salt.
Assembling electronic components with a hammer? That's not how that works, like, not even a little bit
Right! And the video shows a car mechanic putting a bearing in a case.
It can
Looks more like a bike mechanic hammering on a bearing assembly on a bike crankcase, which we never do😊
Think he meant bearings inside hard drive.Many years back i removed bearings/bushes in drum and motors in vcr's.Bouncing of tool that is hammering is dangerous for surrounding metal,electronics
I think it's just bait to generate comments
I've been an electrical engineer since the late '80s. I've NEVER used a hammer on any of my electronics.
If you think you need a hammer for your electronics, you're probably doing something wrong.
Never had a printer becoming possessed or a drive that needed permanent decommissioning?
@@scout360pyroz Nope. I use screwdrivers - and if it is permanently decommissioned, I salvage the fun or useful components. Hard drives have great magnets!
Windings on transformer / inductor cores are the only things that i can think of. If i’m going to be honest, electrical engineering is an invalid point to bring up. It’s a white collar job that purely prioritises designing systems and a huge ally is physics and mathematics.
In corporations some of the engineers design entire motherboards or multi voltage constant current power supplies with active PFC, synchronous rectifiers on the secondary purely from scratch with absolute zero suggestions from electronics they may ever take apart which is a black magic in itself. Some may fall outside the realms of white collar engineering. The electrician is more likely to work with a hammer and after a complex interplay of a bad narrator i can see where they went wrong.
Mechanical purposes might use a hammer, but even then, it's not actually a hammer, but a mallet, to knock some hard to fit components into the mold, for example bush ball bearings, rods etc. This is observable on motorbike workshops and motorbike mods. Well, at least from where I'm from.
Ah, Cynthia's an electrical engineer who never got frustrated enough.
Who the hell uses a hammer to assemble electronic components?
Me when there's no TNT 😅
Bearings or some tight fit parts
Ask Jeremy Clarkson for that answer I bet he’ll know 😂
Surely someone uses it for jewelry
Aviation
Blacksmiths and carpenters would hate this. That recoil saves you a few years before the arthritis really kicks in
Don't forget, dead blow hammers are also used in orthopedic surgery. When my sister got her shoulder replaced the doctor doctor showed her all the tools they were going to use in the OR. And a bright orange dead blow hammer was among them. They need to hammer the new joints into the bone to make sure it's a snug fit
Also reducing damage of the workers "hand" 😊
What i was thinking before i got sidetracked 'laughing' at the other comments🙄 Learn sumthin new everyday.🔔🔨
I had a squash racquet with the same technology in it. Absolutely destroyed my arm within a week.
From that anecdotal evidence I'd say it's not great for the user.
@@diogeneslantern18
sorry
So basically it's the opposite of what a blacksmith would use.
Yes but not for the reason you may think.
Metals that are hit when they are at forge temperature do not rebound anyway.
When you see a blacksmith make his hammer rebound on his anvil it only tells you that the anvil face is hardened steel, and the hammer head is hardened steel, and that is what is necessary for forging.
If one of the element wasn't proprer (too soft) then there will be minimal rebound and thus telltale sign that the gear isn't of good quality /in good condition
Blacksmiths don't use rebound, because forging does not rebound.
This already exists, its a sand sledge, a sledgehammer full of sand, but also the bounce of a hammer serves a purpose in most cases making it easier to return the hammer to the up position to send it back down
But how many fewer times to you have to hit the object if the energy of the bounce goes into the object you're hitting instead? Someone should do a legitimate experiment
@@timwise6607 You can't exert the force of the bounce onto the object that it's hitting, that would break Newton's 3rd law
@@invocalyptic8796 I said the energy of the bounce, not the bounce.
@@timwise6607 As did I.
@@invocalyptic8796 They're used in tight spaces where a limited swing areas requires more of the energy to be put into the target. Instead of a bounce, more energy is transferred into the target instead of being wasted on a bounce. I'm not sure why you think this violates a law of motion, it doesn't.
It's not to prevent bounce back. It's to spread the impact acceleration over a longer period of time, thus reducing the impact force.
transfers more force to the struck object by reducing bounce back
@@ptrckhnry7634 Explain how you think that works
@@Gebenki dampening of hammer reduces oscillations and impact force like in a suspension system. This is a mathematical characteristic of all second order differential equations that have a transfer of energy between two mediums. The damping factor depends on whether the roots of the characteristic equation have imaginary components.
@@fablearchitect7645that was the dumbest thing I have heard all day.
@@charlesstidham2788 do you even math bro? it's just a differential equation.
Dead blow hammers are also good for machinists. The workpieces are typically hit with a hammer so that they're bottomed and falt in the vice or on the supports (parallels) in the vice. Typically it's a dead blow hammer, but at simplest it can even be just a piece of round brass bar dropped on the workpiece. While it doesn't have to be a dead blow hammer, it makes it easier, because sometimes the bounce somehow causes the workpiece to kinda jump back up by a small distance in the vice ruining the piece if you don't notice it.
Посадка подшипника молотком это, конечно, шедевр...))
Fun fact, you actually want the hammer to bounce back
For some things
Not for the sensitive stuff. The weird thing was the bigger hammers. Why you would want a sledge hammer or carpeting hammer to not bounce, idk.
But used hammers like this, but tiny back in the 90s and 00s, to work on electronics. Like inserting boards and drives into servers. It's a real light tap, and they are really tiny hammer, like the head is the size of my thumb, I assume they were brass, they were shiny like gold though.
Adding a word in front of fact doesn't modify it.
This is an ignorant and blockheaded comment. Watch the video before you comment foolery like this
You're right.... Useful when forging
Physics student here.
"Creating a force that counteracts the recoil" is not the term you'd want to use here.
What's actually happening is modt the force from the recoil gets transmitted to the free mass (either balls or discs) inside of the hammer's head, and since said mass is free to move around, it will move within the head rather than making the entire hammer move
Actually it is to protect the person who uses the hammer
Oh umm, I use these at work 😭😭
Not it's not. You so silly.
@@RandomRants525It is. It's much better for your long term health
@@RandomRants525 yeah it is, ignoramus. The "explanations " given in that video are completly fantasists and false . Dead blow is there to make it so you don't have to counteract rebounds with your body , it's much easier on the joint and tendons. It does NOTHING to "prevent damage" to the piece you're hitting . What you're thinking about is PLASTIC MALLET which is unrelated to the dead blow mechanism entirely.
Crafstmens/workers are mostly uncurious mouthbreathers who will spend their lives repeating the same false explanations for all their lives.
Next they tell you that using glancing blows with a hammer do something for shaping metal LOL THey're full of false knowledge and bogus exlanations.
When you want to know something about a tool, do not ask a crafstman, ask an engineer .
@@GewelReal All hammers are designed to reduce RSI.
The don’t create their own force to counteract the force of the hammer, they simply redirect energy from the hammer from dispersing upwards to focusing to the impact point
that's what plastic hammer heads are made for.
That what was thinking because its Still damaging The surface you hit because some time you have still hit it hard
Electricians and other Tradesmen use similar hammers. they're called no- bounce.
This principle is used in Prokennex Kinetic tennis rackets, those are very arm friendly.
Exactly. This is not about "not damaging the surface" BS explanation. A strike is a strike, once it connected to the surface wether the hammer rebounds or not will not change anything
Fucking manual workers understand nothing, know nothing, and will repeat the same dead ass BS explanation for the rest of their life without ever giving it a single thought.
As a guy who fixes cars, one of the most critical things a deadblow is used on is when I have to replace seals in a transmission or engine. Not only does a deadblow not mar or distort the seal itself, but in modern aluminum blocks or casings, sometimes a steel seal shell (the metal shell a rubber seal is mounted in) will not want to slide against the aluminum hole it gets placed in. While grease could be used, most seals, to be effective, are installed dry into the seal bore, which is the hole in the block or casing. The only time lubricant is recommended is around the seal itself, to lubricate a crankshaft or axle shaft.
That said, the deadblow actually transfers 100% of the impact force from the wielder of the hammer to whatever is being hammered. And due to the faces of the hammer being softer than metal, the face of the hammer will take any actual damage before the components that are being hammered do.
They should build this into baseball bats, billiard cues and all other kinds of sports equipment.
maybe not baseball bats
No they shouldn’t, it doesn’t give you any more energy, on the contrary it gives you less since there’s less mass working to give energy to the ball.
A dead blow hammer is used only when you specifically don’t want a bouncing hammer.
That's what Pro Kennex did with the kinetic family of tennis rackets, to reduce vibrations when hitting the ball
My immediate thought was more worrisome. Weapons.
Specifically, the black-jack
@@thehammurabichode7994 I think that blackjacks and saps have been around longer than dead-blow hammers
I'm a machinist
A dead blow hammer is essential in my world. Most guys I know including myself have at least two different kinds If not more. I wouldn't say my job would be impossible without them but it would definitely be a hell of a lot more difficult.
We use the dead blow hammer for seating material inside of a vise to make sure the material inside the device is sitting flat. Also it's very handy for assembling things such as bearings and bushings.
Also if he's correctly a smaller did blow hammer can adjust something very accurately within a few thousands of an inch by lightly tapping on it.
We use a dead blow in machining because it doesn't damage the material and places dense on the material. When you're making a part for a customer it needs to be accurate within a few thousands of an inch if not less so any dents or movement of the part is critical
We sincerely appreciate your feedback. It is very helpful and provides everyone with an accurate perspective on the benefits of this type of hammer.
Would type dead blow effect also help with the recoil of rifrls and guns?
same question bruh
Yes, like Kriss Vector
already quite a few guns with a system to minimize recoil
That's exactly what the recoil systems in the stock of many rifles do. What do you think the weight and spring are for?
That's not how hammers work. The recoil is ALL the energy put into what it hit, but some gets reflected back. Absorbing the rebounded energy doesn't change the force of impact. AT ALL.
One of my favorite tools
Dead blow hammers are good to be used when you expect resistance. The bounce will absolutely rail your wrist when you are giving it a good wallop. Its pretty much the best of a rubber mallot and a standard hammer.
Just use a mallet. No need for expensive hammers
that's basically what they use it for. They don't even understand that a dead blow does nothing related to "surface damage" or marring past the fact that they are most often PLASTIC/VINYL/RUBBER *MALLETS*. Most manual workers, you know, they know and understand shit. That's just how it is. Low education, low curiosity, low intelligence and low knowledge.
I know, I've been a sheet metal worker for the last 2 years and the level of ignorance some of my colleagues display is mind blowing. Also they don't care, they're intellectualy lazy . But then I'd prefer for them to shut their face and not act like they know anything. Because they don't.
They're like automatons: they learned processes, they learned muscle memory but they have no idea why they do what they do and how each part works. And they ALL have the same bullshit explanations/"knowledge" , like they internationally share a knowledge database of bullshit theories and pseudoexplanations lol
Ummm. No. They aren't that expensive and are crucial to many professional jobs.
I used Dead blows when working at a steel factory. They are definitely NOT break proof. We'd go through 3 a month on good occasions. The rubber around the heads would break very easily, and once the rubber shell breaks the caps that hold the bearings or shot in the head either break or fall off.
Bro survived milim's death training but so did ranga
My Dad would always tell me “If the hammer doesnt work, do NOT use a bigger hammer” 😂
I wonder if this anti-recoil technology can be implemented in guns where necessary.
Yes it can! Kriss vector is a good example of this
Or you take the recoil like a man.
New Hammer: Yup, I'm Cool. 👍🏻😎
Old Hammer: I'm Dead to You Now ? 😞
😆
Would be cool to incorporate this into some sort of recoil control on a firearm
That’s literally how a ar-15 works
@@navykitty5339 it was sarcasm
@@Jak-it cool
Check out how the Kris’s Vector works, basically throws a counter weight in the opposite direction of the recoil every time you shoot.
@@tempo634the vector is a great example. In all the games ive played it has crazy recoil though 😂
This is why a specific (range) amount of water in a plastic bottle doesn’t bounce and lands upright when tossed up.
The explanation is wrong. The elastic rebound force wave does work on the components at the inside surface by accelerating them upwards. Work consumes force: work = force * displacement.
Time for your pills Keith 🥴🤪
Important to note that they're for applications where accuracy and care are more important as they're not quite as efficient at transmitting force.
We can use this effect to make super strong suit or vehicle❤
I’ve been using them for years to install and remove components you don’t want to damage the surface of. It’s pretty much common sense, but wasn’t exactly sure how they were made.
All these things my dad showed and taught me about with his own tools and side quests while I was growing up are really cool to see and remember when all these tech videos come up.
As a mechanic we only use these hammers on aluminum.. or when driving kingpins in and you don't want to mushroom them..
It’s good for freeing seized components without denting the surface on things that need a little percussive maintenance
I use deadblows in working with retaining walls and patio pavers. Every other hammer will break the block, including rubber mallets.
wouldn't the rebound be useful since you wouldn't have to lift the hammer every time? you could just strike, have it rebound, then strike again. with this you're striking then lifting to strike, which is more work overall.
Sometimes precision is more important than efficiency. And sometimes it's just too dangerous to allow for a rebound particularly for larger hammers.
Dude, a lot of hammers are supposed to bounce upon impact, specifically ones involved with blacksmithing
Wow, so now we got recoil free hammer before gta 6😂
So it’s a force pair by the way. Not some magic force in the same direction downwards. The recoil is directed opposite the surface it strikes.
So that's where I've been going wrong , I've been reseating tubes in my guitar amp with a plain old clawhammer , silly me .
A good rebound is good in blacksmithing. It makes it easier to swing the hammer for longer so you don't have to put as much effort into picking the hammer back up it just bounces back up and you swing down
Been making jewelry for 10 years and never thought to use a dead blow hammer. You don't need that much force often
It hits softer than a regular hammer. Is because F = mA. And if you reduce the density of the hammer, by makeing it hollow. The mass will be less, and so the force
Fun fact in mechanical engineering, if it doesnt go in easily it means that its the wrong size, NEVER USE A HAMMER TO FORCE IT IN
My boss's son used to laugh at me for carrying two hammers. The other tradesman knew what I was doing, though. Hanging boxes and fixtures? Dead. Framing and heavier things? Regular.
In China for construction they use hammers with long, wobbly rubber-ish handles. Makes the head of the hammer flail around so it isn't precise and a bit dangerous but there's no kickback or vibration transferred up to the hands.
Steel coins can bind which would be inferior to the steel shot that a true deadblow hammer has always had, in fact if i dont hear steel shot inside when shaking i dont consider it a deadblow.
Everyone who has used one understands the value of this tool without a cutaway and a video explaining it. It is an ingenious design and ubiquitous for it.
Do you do these for serial killers ? Asking for a friend. He says its energy draining to continue his work this hammer may help him re-connect with his passion for what he calls CLEANSING
Indeed! One day I had a real issue with soldering a 24 legged chip and hammer worked like a charm!
I prefer the electric hammer. You plug it in any outlet and it hammers things for you.
Man imagine giving some dude a blanket party armed with a bunch of THESE things
This could be a useful tool for teaching the importance of wearing your seatbelt while driving, because the hammer and balls can be compared to a car with people inside it
A dead blow hammer is a must when you want an item to be sitting flat on a vice, a standard hammer hit will create a bounce therefore when you machine the part, you will never be assured that the part is correct unless you use a dead blow hammer. (It is a lot easier to show than to explain).
Back in the days, when I was working in a mechanical workshop, we only had these hammers at the manufacturing machines. Steel hammers just do damaging workpieces and are sucky in general. To put a nail into a plank, yes, but for metal work, mostly no. The damped hammers are just way better to handle
It takes a lot of balls to use that Hammer
It's amazing that after thousands of years since the hammer was created we still continue to improve it
Call me crazy, but this video was 7 minutes long. It felt really informative and I felt like I learned way more than possible in the 60 second limit.
I had one of these for unsticking the shelves from distorted Lozier racks. It let you put a lot of momentum in, in a relatively tight space, without putting a dent or chipping the powder coat.
Warning: Do not use for blacksmithing!
You will be doing 4x the work ⚠️
As a guy who works with electronics for a living, I'm curious about which electronics need a hammer. Is it the flux application? Or the inserting of THT components? Maybe it's to dislodge the on board voltage converter? All answers are welcome (trying to learn)
Nothing bounces continuously. That’s a gross miss-use of that word. Bouncing is discreet motions up and down. A continuous motion up and a continuous motion down. Repeatedly is a better word.
Rebound doesn't effect anything. Lol it just takes away the inertia from the hammer making it softer.
They are usually lead pellets, steel bounces too much and also generates sparks.
Lead, like carbon is an awesome material and is harmless to handl with bare skin, just wash your hands afterwards.
Recoil is actually useful on a hammer though. It lifts it back up for another swing.
This is for select precision applications. It’s a specialized tool for specific jobs.
Often, being able to control and direct the rebound can be advantageous
Its the damned vector, they put the vector’s recoil mitigation on a hammer
Not bouncing means the momentum variation is less than bouncing. Makes for a weaker impact
AR-15 buffer works the same way, to prevent bolt bounce back during automatic fire.
And most importantly it allows you to swing with great force without the hammer jumping up and hitting you in the head.
Perfect for installing shelves
I always thought it was sand inside. 😅
Here I was thinking the hammer couldn't be reinvented. Well done.
Do the wheel next.
That's weird but cool I'm pretty sure these will be useful for doctors in surgery
“The other hardly oscillates”
Didn’t know I was born with a feature
It's good on the wrists especially too I used these hammers for jewelry especially for making rings
It's quite akin to what happens to a human body in the old car without deformation areas - human body takes most of impact instead of a car.
Me thinking: Hey... You're weakening the hammer, it's imparting less force!
...... Oh that's what you wanted 😂
a very useful tool to help reduce fatigue. that said, that bearing at the end was not even close to being straight
As somebody who developed carpel tunnel from disassembling large things with a sledge hammer, I wonder if this feature would have helped prevent that.
In older days if hammer recoiled, you weren’t strong enough. Than you got lesson from experienced ones.
"Jewlery making"
Guy installing bearing:
The best UA-cam video is one I actually learn from.
Edit:
Thank you.
Ah great! Now hammering will be much more difficult from not having a bounce to help bring the hammer back up! Nice!!!
Never ever hit the outside of a precision ball bearing like that. Push it in square with a press.