End mill breaking at 20,000 FPS
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- Опубліковано 17 січ 2023
- What does it look like when an endmill starts chattering? How about at 20,000 frames-per-second? I'm in the shop playing with a high speed camera, filming Online Carbide 1/4" 4FL variable helix end mill on mild steel with my AvidCNC Benchtop Pro.
#shorts - Наука та технологія
now break a tap
evil
Wow sir, and here I thought terrorists were bad people..
Or an ez out
Oh shit nooooooo.. that's the worst💥💥💥
That's not just chatter, that's like the whole world is shaking.
"It works pretty well with my machine" Immediate cut to the end mill disintegrating
Yes, we all saw the video.
As a machinist i found this full length video really interesting in seeing the "feel"/whats happening in reality 😄 i love your channel dude, i have just been working through all your vids!
I know you are not a Machinist because I am a machinist.
What's really interesting is how the machine shifts the position of the bit so extremely rapidly instead of at a slow even pace..
It literally jerks it from side to side, I never knew they did that
@@aculasabacca I know you're both lying because I'm a machininist and that's what all real "machinists" call themselves, machininists. We specialize in machinanigans.
Real machininists are also very into SadoMachininism.
@@jonslg240 That jerking is from backlash. He is milling in the wrong direction. It's like feeding a table saw from the wrong direction. The blade will yank the workpiece out of your hand and shoot it across the room. A similar situation here.
Wow man great slow-mo shots, after the tip gave out it just crumbles under the weight !!!!
Can you work with slomoguys on a collaboration to see the crack propagation? I think that would be really cool, plus you could get some nice eye candy from clean machining at a higher data rate than this.
we need a breaking tap in slow motion
Even in hardened tool steel, the amount of deflection is really remarkable
Your end mill has left the chat.
I know it was just for a short but never seen someone so sloppily put in parallels before.
Interesting! So is there any way to figure out why it chatters on that & fix that going forward?
He needs to cut going the other direction. What he is doing is "climb milling". It can be done but only with a machine that has no backlash.
That’s not climb milling.
All terrain tires have softer rubber which wear out faster when normal driving ie roads, highways, etc.
So if you want all terrain tires for the looks, know it will kill your gas economy and you’ll replace them earlier.
Man that's cool!
So cool
Yeah. Until one breaks off and hits you in the face. 😂😂 Luckily i got minor cuts. But yeah it is preety cool to watch.
@@davidtidwell5397seems like you need to work on your shop safety
Tools ain't cheap💥💥💥
TOT made recently a nice video about excentric collars... Slo-mo looks beautiful and you can see exactly the problem here. Nice work!
That’s way too extreme to be the collar. That’s like a 1/32 runout on a 1/4 endmill.
I think the whole head or table is shaking itself to bits.
I don't know what size machine you're running, but i find it impressive how much force it can withstand. It looked like it rocked the entire machine
Run out is like 0.02 bro, change your tool holder
That went well!!!
too little views for such a cool vid, I mean it seem that u spend lotta time on it
Is that a solid carbide end mill?
Your ways or bearings are worn on that side of the machine. You could try having the gibs tightened up. But your probably gonna have to replace your ways and/or bearings.
Hes just cold
I thought you said 4 ft and I was going crazy
Tool is still good. Maybe reduce RPM by 100
That was epic… and I hate that word… but epic is the only word that will do.
Need a solid holder
woah sick
OMG!
FUCKING BRILLIANT
Looks like your collet has a lot of runout
Holy smokes
Probably a little tormach or cheap benchtop machine
Pushing beyond it's limits
I think it "worked" well before that maybe... but it "works" no more
then don't use carbide end mill's,
but HSS Lower your RPM and use cooling fluid!! 🤷🏻♂️
What the hell were your feeds and speed? Looks like you were spinning the hell out of that thing with a large side load
What are the rpms ? So at 20000 (surface feet per second?)
So the rpms (if this is a quarter inch ,) are 18336000. BS.
I think I heard shatter wrong
Does what it says on the tin…
Soooo... bearings?
Collet isn't centre (true)
Refer to This old Tony's recent video
Looks like others have said the same thing
Runout sale on broken mill bits?😂
You have a Loose Screw... Literally!
Mild steel?
Check your ways.
No taps broke in this video, false advertising.
20k fps bruh XD why so fast
Wow
Breakinf taps becomes breaking dexhenf sizre end mills fot us mini and micro larhe mill people would love to see turning lwngth with end supoort like 3 feet long
Your feed rate is entirely too high
Change your collet
variable helix? So the angle of the helix changes throughout the cutter? What is that meant to do?
Depends a bit on the manufacturer, but typically each flute will have a slightly different helix angle. Variable helix endmills help cut down on chatter because the slighty different angles have different resonant frequencies, so they don't have a chance to start building up a big resonance because they interfere with each other. A consistent helix angle between all flutes has a chance to start reinforcing chatter as each flute strikes the work at the peak of chatter (like pushing someone on a swing)
@@BreakingTaps oooohhh, thats interesting & not at all what I thought. But that is pretty clever. good explanation too! thanks.
EXCELLENT FINISH ON THAT PASS.. 👍 PERFECT FEEDRATE
Can’t trust those bits from harbor freight
He's doing it wrong.
@@aculasabaccahow is he doing it wrong?
@@Jose-el7rf When a machine has backlash in the feedscrews and you attempt what is called "climb" milling, as soon as the tool get a good bite. The backlash allows the table to move a given amount all at once as the tool pulls on the workpiece. This lets the tool take too big of a bite. If you search the difference between "conventional and climb" milling you can see a diagram or a video.
Can you make one showing you destroy the entire machine by crashing it?
Thanks for your consideration in advance.
Thats not the tool. Its the rigidity of you busted ass machine.
You know that your Spindel doesn't run true right?! It turns eccentric. No wonder it shatters 😂. Just stupid
Arebyou climb milling on a conventional milling machine? The backnlash will smash your tools.
Ah yes … machinist you are not. He is neither climb milling nor using a conventional mill. You can tell that he’s not climb milling by watching the video and you can tell it’s a CNC by listening to the video.
@@Hunter-ko7lk Looks like climb milling to me, what makes you think otherwise?
@@psn64sat63 Haha, of course it's climb milling:
# The width of the chip starts at maximum and decreases.
# The cutting edge meets the workpiece at the top of the cut.
# Chips are dropped behind the cutter
What do you mean by "conventional milling machine"? You can climb mill on any machine that has sufficient rigidity and minimal backlash.
@@Hunter-ko7lk no, you aren't. Climb milling is when a cutter is trying to 'pull' the material into the cutter. Bad idea on anythimg with a leadscrew. If your manual miller uses a ballscrew, then all good, like some XYZ machines.