CNC milling tool collision!

[deepwoodtickles]

If anyone bothers to read, the reason was not coolant, it was trying to cut 3 mm instead of 1 mm, ie a brainfart in the programing, not the fault of the machine being taiwanese either, a good ole american machine would break if programmed wrong.

[MyMIXmedia]

its moving rate is to fast

[packleader38]

this is classic( i forget to read my cutting plan before i started the system) fail

[TeeWeeQcKsteel]

you can hear the cutter how it is toiling...to much torsional reaction because of the feed

[william4art]

8 years in a production machine shop..lol obviously not producing much ..lol obviously another cnc so called "machinist" spun out of a six week class at a local community college..LMAO.. I'd bury you in chips and walk away with a barely hot block with a great finish and not have any coolant anywhere!!!

[antboy824]

Forgot to use single block?

[boomersoonerks]

looks like someone put a - in the Z axis where it wasn't supposed to be lol

[rick371]

@boomersoonerks had the same things happen to me...cnc turning i put a incremental instead of absolute...so it went 120mm into the chuck...instead of 60mm...

[TeeWeeQcKsteel]

how big is you fz???

[nodnarbnoob]

exactly why you dont use coolant on a high feed mill

this was a classic case of thermal shock,

[mikenuke]

but there is a coolant running...

[lapoltba]

@mikenuke Exactly... Thermal shock....

[aussienerds]

@mikenuke He said "Exactly why you DON'T use coolant...". :)

[MPAH1981]

@mikenuke no...he said why you "dont"...meaning the at that speed the cooland cant cool the contact area fast enough and that happens

[Baderluck]

@mikenuke he means that is exactly the reason why you should not use coolant:)

[nuthinbuttrubl89]

@mikenuke what he means is you shouldn't be running coolant on a high feed mill. there is too much heat generated in the chip with those types of tools. your best bet is to run them dry or with an air blast. you never run coolant on a high feed mill. 

[Duckyistrippin]

@mikenuke like he said. thats why you DONT run coolant. because cold coolant plus hot bit = kaboom. get it?

[JTMarlin8]

@nodnarbnoob Idiot, the poster already stated why it crashed.  There were high spots left by incomplete surfacing... a mistake caused by the programmer working in the CAD/CAM.

"Classic case of thermal shock" my ass. Thermal shock is only a factor at higher SFMs. The coolant did NOT kill the cutter in this instance.

No wonder companies are sourcing their machine work overseas. So many machinists here (like you) don't know what the fuck they're doing!

[junkymagi]

@nodnarbnoob Didn't read the description, did you? Instead of feeding 1mm for next pass,it tried to feed 3mm. Went beyond the tool's strength so it shattered.

You have to use coolant or the tools would melt in only a few seconds of cutting.

[william4art]

@junkymagi a high speed insert cutter would melt in only a few seconds.... MY ASS... use real inserts!!!!! KEEP THE HEAT IN THE CHIP!!

[junkymagi]

@william4art Yeah, keep talking out of your....

I worked for 8 years in a production machinging plant with over 1,000 employees. Guess what, NONE of the cutters cut dry, they all used coolant.

Keep the heat in the chip? Sounds like a great slogan, but it's a physical impossibility.

Besides, even if he was using "real" inserts (never seen a fake one, myself), cutting too much stock will cause any tool to fail.

[MPAH1981]

@junkymagi No one is right and no one is wrong, however you will achieve better roughing at those speeds and feeds without coolant. Removing that much metal, you will keep a majority of the heat in the chip with the right cutting tips. I am a tool maker myself, I've machined many a piece with dry, heavy roughing cuts, then I change my inserts, take a minimal cleanup cut with coolant, measure and go from there. There are a lot of dependencies that determine how you do it. But you know that.

[william4art]

@nodnarbnoob AMEN!!! Ive seen one dumbass after another do this!! KEEP THE HEAT IN THE CHIP!! WOW!!! WHOS POSTING THESE BAD VIDS

[arthoriusTHEking]

@nodnarbnoob you dont use a coolant BECAUSE of thermal shocks! the tool and the workpiece wouldnt heat up with the right strategy.... only the swarf may be hot!

[ExtremeDeathman]

@nodnarbnoob

You don't use coolant at HSC, cause the thermal stress is inthe Workpiece, not the cutter itself

[LongIslandEddie]

I think that the Taiwanese should stick to manufacturing clothing and leave the machine building to the Europeans.

[JTMarlin8]

@LongIslandEddie  LOL, Europeans make shit machines compared to the Japanese.

[LongIslandEddie]

Perhaps they do but the Europeans certainly outperform theTaiwanese (Chinese), hands down! I got problems with Japs or even Korean craftmanship but the shit from China leaves an awful lot to be desired, especially their castings. But again, that's only my opinion so please don't get your speedo in a wad...

[JTMarlin8]

@LongIslandEddie LOL, speedo in a wad... good one. Except you're the European fanboy, not I...

So you have a problem with China. Fair enough. But you think China and Taiwan are the same country? Do you think Spain and Mexico are the same country? How about the U.S. and Mexico? Over half the people working at Haas in Oxnard are Mexican.

And great machines come out of NY where you're from. Yea those Hardinge lathes, which are being PHASED OUT.

[LongIslandEddie]

@JTM-

The Republic of China today consists of the island of Taiwan, an island 100 mi (161 km) off the Asian mainland in the Pacific; two off-shore islands, Kinmen (Quemoy) and Matsu; and the nearby islets of the Pescadores chain. It is slightly larger than the combined areas of Massachusetts and Connecticut.

[JTMarlin8]

@LongIslandEddie I don't need a geography lesson from a guy who gets his info off Wikipedia. Taiwan hasn't split from China in fear of military retaliation.

There is a night and day difference in quality between China and Taiwan, and a Taiwanese VMC will run circles around a Haas/Hurco/Fadal mills.

Anyone can see right through your excessive body fat, facial hair, and stupid accent. You're just a stereotypical loser who only thinks he knows what he's talking about, not a "true American".

[william4art]

@JTMarlin8 DAMN RIGHT!! what an idiot machining accident. the block of steel isnt even 2.0 thick.. these so called cnc machinist need to take manual machining classes so they can learn how to do it right using manual power first... a 2.0 insert cutter on a 2.0 thk block with coolant dumping all over it ....LMAO

[szym86]

sounds like judgement day

[rossxchristie]

speed too slow and feed too high!!

[Gehirnsauger1]

yeah, you can hear it on the sound, the machine makes!! sounds more than an old tractor!! :-D

[WildoTheRubberFist]

Seldom if ever is a broken tool not the programmers falt... same goes for a lathe.

[stelladidavide59]

Che video schifoso,nemmeno i cani fanno un video cosi'.Ma levalo

[SirJanIsOnAir]

der vorschub isn bissl extrem oder?

[tibco089]

The sound is ok, never used a High Feed Mill before?

[WMaxx91]

This is a terrible sound for milling!

[CDTNC]

omg ha ,yep programmer ,error from what i could see , little fast on da speed

[Talbotfocus]

Feed rate is not big , It's perfect actually , maybe a little bitt more spindle speed.

[WMaxx91]

A little bit to fast ha?

[Smegma007]

Haha. "It's the programmer's fault!" LOL.

[R1pperB]

Μπραβο μεγαλε! :P

[mikenuke]

Ευχαριστω, Δασκαλε! :Ρ

[MRELPARKO]

the problem is that machine is a 2 dollar piece of shit i run a matrix 6 axis and it can turn a 1 metre cube of mild steel into swarf in about 10 mins

[mikenuke]

Everybody has to deal with his shit! Relax man! Halara!

[r0cd0x]

GOOD FOR YOU! i run an entire room of Haas machines and im still in school....

[killyoubytch]

TSTC?

[rivercarper01]

@MRELPARKO I'd like to see that!! but it would be a waste of material and the inspection department would have fun checking that one! (the lazy gits).

[Ecmdrw5]

That sounded bad from the beginning of the video...broken insert maybe.

[mattfreeride]

shit happens when u climb mill

[matthewsnow]

enough said

[djtom74]

hahaha mdr put1 les surdoués !!!

[MaxaminusOne]

that sounded terrible

[snafuthesane]

Good god.. pay attention, kids.

That's why we dry run everything first. ;]

[salemcripple]

oops, that's got to suck!

[barrybluefield]

ha ha ha ha

[G95G95]

The random rapid Z- fairy strikes again!

[jrotcelite]

Ouch. Kinda reminds me of last year in high school machine shop when I did something very similar and thought I broke the $55,000 cnc milling machine.

[salemcripple]

When i was in H/S machine shop, one of the lathe chucks came off and went rolling acrost the shop. Thank god he was just spinning up the machine when it came off, rather than it being at full speed.

[ir0nman1981]

Same thing happened to me, some guy was changing the chuck from 4 jaw to 3 jaw, but he only tightened one of the locking cams. I turned the lathe on, the jaw skips off the facxeplate and lands on my toe. Thank God I was wearing steelies!

[salemcripple]

Lucky it wasn't a big chuck too. Had it been, even with steel toes, you wouldn't have had any toes afterward.

[fourstrokin]

way to push your tooling! keep it up.

[ClaudioArrau]

lathos ? ti lathos ?

Leitourgei to cnc twra... kaeikai tpt ?

[fortmcmurraycash]

hahahahaha!!!!!!!!!! fuckin cnc monkeys

[milwaukee69]

LMAO!!! My bottom desk drawer was full of those same tools when I first started G-code programming.

[juon22]

feedrates and the method of cutting it. However, do not count on cad/cam programming

[mithrandel111]

Mastercam has never failed me yet.

[mikenuke]

not exactly, the feeds were right.

But the cad/cam when i was programming the machining operation had left some spots, instead of taking the first time,has left them for taking them after 3 passes. So instead of cutting 0.5mm when i had the collision the tool was trying to cut 1.5mm and stopped there.

[thchris]

lol... listen to the sounds... it is way way way to high.... if you know anything about milling you would hear it...

[thchris]

feedrate was way to high...

[gi0rg0s22]

lol re palikari!

parto alliws...den peirazei next time...