The steel mill environment is really rough on the equipment. The things that are coming in for repairs, sometimes I'm like, how the hell did you manage to break that.
To be fair, there are some applications that require very tight tolerances in the application and use and a tool mark could push those tolerances out of wack...however, those have to be VERY tight tolerances and usually seen in very specific applications and industries (Formula One engines is one example).
usually tool marks are eliminated after grinding and polishing so i fail to understand why he doesn't leave an allowance for grinding . or they just dont have grinder for it
I’ll bet you the guy that drew that part up originally never imagined that a computer controlled machine would be cutting those radii so smoothly. Nice work.
@@matiastripaldi406 There's always a way, but it'd involve some pretty unusual tooling. Probably a fourth axis, rotating vertically on the carriage, provided the required radius is perfectly circular. Imagine something like a "ball turner" tool for a manual lathe, but used in the opposite way. If it's an oval, or some other more complicated shape, you'd need a fifth axis mechanically linked to the fourth with some fancy variable linkage that would have to be adjusted for the shape. Thank god for CNC, i guess!
Thank you Chris for this great machining video. I love carving with the Kennametal knife tool in slow motion, it makes nice big blue shavings. Have a good working week and see you soon.
When I saw that first cutter, I knew big chips would be flying. I looked at the screen and saw that the lathe was only at 83% with that depth of cut. Truly boggles my mind how an insert so small can do that lind of work.
Half a thousandth tool mark will cause an 8" shaft to sheer ... sure thing bud! I read those notes as a cheap guys way of trying not to pay full price when you are done the job. "Doesn't meet the specs I gave you." Beautiful work as always! Thanks for sharing 🇨🇦
Yeah, I was just messing with that tool marks cause years ago we had that one inspector, and he was really picky about surface finish/ tool marks. He would use his fingernail and be like " that's not gonna cut it, polish it more "
Man i wanna make big parts like this...I run a Hardinge mostly, small titanium parts that are like 3-5 inches long lol. Thinking of going to another shop next year potentially. I wanna learn to run cncs cause all I do is manual work like honing, flat lapping, finish grinding, match lapping, roll lapping and Hardinge for finish lathe work that requires +/- .0002 work. Watching you turn this was so cool idk lol, though my heart stopped for sec when you showed the print...parts I work on have that ITAR stamp soooo I'd probably get fired if I showed it lol.
Great work as usual Chris, is there any chance you could add the time to produce the component floor to floor including programming? Thanks in advance.
What depth of cut were you running on that fix8? I see 300 sf and .032in/rev but couldn’t tell from the code how deep you had the insert in the material. That thing looks like a monster cut
Всегда прохожу болванку первым черновым проходом, убирает биения и ржавчина потом не летит при последуещей обработки. И на обдирке по возможности использую левые резцы и обратные обороты, что бы семечки летели вниз.
I have the same machine and have a job coming up in the next couple days. It is 9.625 soild 316l bar stock I have to turn to 9.000 +0.000/-0.008. It is 208.250 inches long. I also have that same tool. What kind of feeds and speeds would you start running that at?
Я был мастером механики после технаря У меня дед в бригаде был токарь за пенсию Никогда не люлил чистовую Ставил режимы так что бы стружка аж до светильника доставала летела Диверсант Соседи по цеху работать не могли
@@ChrisMaj спасибо ,это видео все объясняет .Видимо я его не смотрел ,так как недавно на вашем канале.Очень интересный у Вас канал ,смотрю с удовольствием .Если честно ,я таких резцов ни разу ещё не видел ! Удачи Вам в развитии канала ! 🤝👍
I assume your finger nail is calibrated at a hardness lab after every trim. When I worked at a gas turbine overhaul company tool mark (or any surface marks for that matter) removal was extremely important. In aircraft engines the parts are highly stressed so they can be as light as possible and are therefore susceptable to crack formation at stress concentration points. Much time was spent with Cratex sticks smoothing out radii etc. Even grinding surfaces was problematic as certain materials are subject to grinding burns which can lead to crack initiation. These grinding burns are invisible to the naked eye and only show up when etched with nitric acid. The surface will look perfectly smooth but be burned and unacceptable for use. The parts you are making, while likely subjected to huge loads, are very heavily made and probably develop relatively low stresses in the material. While tool mark removal is good practice, it likely would make little difference on this part. Ken
Hi, again I am wondering, is the center in de main spindle (slightly) floating and only used as an axial stop? Because it would be over constrained with a fixed center, you could be doing huge damage clamping the jaws unevenly. Great removal rate BTW. At work I was discussing milling vs. turning for hogging out big parts, because the Mazak VTC does not lend itself well to high removal rates, one of our big lathes will do it much quicker. Also it appears the chip thinning milling strategies do not work equally well on different machines.
@@ChrisMaj Thanks! Do you mark the deviations on rough material and make sure the numbers don't change while tightening the jaws? Normally a drive dog would be used between centers but for large work this is probably not an option.
"Let's be realistic, This thing did not break because of tool marks." "But all tool marks must be smoothed" obviously the new engineer covers all his bases. It looks pretty too! Shuffle blame from design to manufacturing. From manufacturing to maintenance, from maintenance back to design. Welcome to Boeing. Why did it FAIL. The design did not account for reasonable maintenance and manufacturing flaw allowances. "The reasonable test" And what is a reasonable engineer to do, cover those bases in design. DESIGN FAIL, PERIOD, or maybe a rough finish as well. Or lack of maintenance. Needed more grease as well. Probably needed the newer flux capacitors installed as well.
How is it a waste of material? Yeah, we could have used a forging, but it takes a long time to get them,and in repair, machine shop time is what we don't have cause everything is a HOT JOB
Those FIX8 inserts are absolute studs. Stellar work as usual.
Gotta love the "tooling marks caused this part to fail" part. Heavy use had nothing to do with the failure, it was the tooling marks. LOL 🤣
The steel mill environment is really rough on the equipment. The things that are coming in for repairs, sometimes I'm like, how the hell did you manage to break that.
To be fair, there are some applications that require very tight tolerances in the application and use and a tool mark could push those tolerances out of wack...however, those have to be VERY tight tolerances and usually seen in very specific applications and industries (Formula One engines is one example).
usually tool marks are eliminated after grinding and polishing
so i fail to understand why he doesn't leave an allowance for grinding .
or they just dont have grinder for it
I’ll bet you the guy that drew that part up originally never imagined that a computer controlled machine would be cutting those radii so smoothly. Nice work.
The print is from 1965, I wasn't even around then😅
How would you cut it otherwise? By step turning and then filing? You cant use a form tool on a part this bid
perhaps a hydraulic tracer@@matiastripaldi406
@@matiastripaldi406
Ball/ radius tool post
@@matiastripaldi406 There's always a way, but it'd involve some pretty unusual tooling. Probably a fourth axis, rotating vertically on the carriage, provided the required radius is perfectly circular. Imagine something like a "ball turner" tool for a manual lathe, but used in the opposite way.
If it's an oval, or some other more complicated shape, you'd need a fifth axis mechanically linked to the fourth with some fancy variable linkage that would have to be adjusted for the shape.
Thank god for CNC, i guess!
Thank you Chris for this great machining video. I love carving with the Kennametal knife tool in slow motion, it makes nice big blue shavings. Have a good working week and see you soon.
Awesome video! I love how strong those lathes are. Turning a 2 ton piece perfectly on center.
When I saw that first cutter, I knew big chips would be flying. I looked at the screen and saw that the lathe was only at 83% with that depth of cut. Truly boggles my mind how an insert so small can do that lind of work.
1045 cuts really nice.
Ini benar2 pekerjaan mesin bubut yang menakjubkan, ❤
Poor man roughness test method😂😂 same to you❤
I could watch this all day. I miss turning & milling. So satisfying.
Half a thousandth tool mark will cause an 8" shaft to sheer ... sure thing bud!
I read those notes as a cheap guys way of trying not to pay full price when you are done the job. "Doesn't meet the specs I gave you."
Beautiful work as always!
Thanks for sharing 🇨🇦
That mill scale and rust is no match for a good carbide insert. Nice work as always!
Came out well 👌 thanks for sharing 👍
That is ART!
That part is very solid not slender enough for tool marks to cause failure.Another nice turning job Chris.I do miss machining large jobs.
Yeah, I was just messing with that tool marks cause years ago we had that one inspector, and he was really picky about surface finish/ tool marks. He would use his fingernail and be like " that's not gonna cut it, polish it more "
How many cutting edges of the Insert did you need to use to remove 800kg?
Same edge for both ends, and I probably could have done another one. It's a 1045 ,it cuts really good.
I cannot get over the enormous micrometer (which is crazy to say)!
That's some impressive cuts! Damn
The tool could take bigger cuts, but my lathe is like, hell no.
You're probably the best youtube machinist out there
Not even close, but I'll take it
Man i wanna make big parts like this...I run a Hardinge mostly, small titanium parts that are like 3-5 inches long lol. Thinking of going to another shop next year potentially. I wanna learn to run cncs cause all I do is manual work like honing, flat lapping, finish grinding, match lapping, roll lapping and Hardinge for finish lathe work that requires +/- .0002 work. Watching you turn this was so cool idk lol, though my heart stopped for sec when you showed the print...parts I work on have that ITAR stamp soooo I'd probably get fired if I showed it lol.
Nice work as always!!! 🇧🇷🇧🇷🇧🇷👏👏👏
Very impressive work. About how long of just cutting for that beast of a part?
Beautiful work as always. I always learn something new from your videos. Thanks very much. Have a good weekend.
Thanks. I wish I had the time to actually explain things while I'm working cause these are the channels that do good on youtube, but it is what it is.
@@ChrisMaj We learn from you by example and where necessary by reading between the lines. We appreciate your videos very much!
I always enjoy watching the turning of big radii.
You will want a big Cratex stick to polish those curves.
Honestly, I've never used one of them. I'm just a sandpaper guy.
@@ChrisMaj They do a great job on small parts but I don't know if it would make much impression on all the steel you have there.
That was impressive well done
Slick work as usual.
Much appreciated
Love watching your videos, I learn a lot 👍🏿👍🏿👍🏿
Awesome, thank you!
The piano man does it again- magnificent job .
Fantastische Arbeit 😊
With that -0.001 tolerance and tool mark callout, the machine shop must've loved this particular engineer very much...
How large is the concentricity and straightness deviation after roughing? before the pre-finishing?
Those are some crazy tight diameter tolerances for a shaft of that size!
How long does a job like this take you, from start to finish (planning, setup, programming, running, etc)?
Great work as usual Chris, is there any chance you could add the time to produce the component floor to floor including programming? Thanks in advance.
I could, but the thing is that sometimes I'll start one thing and another hot job comes in so that one just sits on the floor.
good job👍
What depth of cut were you running on that fix8? I see 300 sf and .032in/rev but couldn’t tell from the code how deep you had the insert in the material. That thing looks like a monster cut
1:27
Mesin bubut yang menakjubkan 👍👍👍👍👍
Great skills and Great machine 👍👍👍
Lathe work is very satisfying, to do or watch. Metal or wood.
The Big job . Your Good machinest crist
Super great videos👍 been watching for years now, thank you😁 hows center getting put in to these huge rounds for the tails stocks live center?
Horizontal boring mill.
@@ChrisMaj maybe some footage of that one day???👍
That would be cool to watch😎
Сколько времени ушло на обработку?
How long did this part and setup take?
Myself being in quality control I always think about one mistake can be very costly especially when tolerances are so tight
Thanks for the video, what's the P100 ? is that a dwell?
I'll have to look into it cause I never do anything with that.
Всегда прохожу болванку первым черновым проходом, убирает биения и ржавчина потом не летит при последуещей обработки. И на обдирке по возможности использую левые резцы и обратные обороты, что бы семечки летели вниз.
Very very good brother form akbar sheikh Pakistan
Nice...
Nice 👍
Está muy bien qué muevas el reloj comparador para que veamos que no está fijo!!😂😂
Do you have to probe in after each tool change?
As long as I'm not taking them out of the toolpost, then no, but that's only 4 tools.
Damn that's nice work. What kind of steel is that? Seems like it's on tue harder side.
0:02
How do you touch off the tools and setup the controller for the different tools?
Fanuc manual guide i has a teach function for tools; you just take a cut and tell it what it measures
Take a test cut, measure it, and enter that number into your offset, and I would do the same thing with other tools.
Thanks. I assume you set the z axis the same way? Facing (partial) and set z0.
@@larryblount3358 yep, or z=whatever if then end of the part isn't convenient
always chase your mark
.032 feed is awesome
When/how did you face off the ends?
Horizontal boring mill.
I have the same machine and have a job coming up in the next couple days. It is 9.625 soild 316l bar stock I have to turn to 9.000 +0.000/-0.008. It is 208.250 inches long. I also have that same tool. What kind of feeds and speeds would you start running that at?
If by 316 you mean ss than you're asking the wrong guy. I don't do much stainless steel.
@ChrisMaj That is what I meant. Well, I'll check what the box says and go from there. Thanks.
👍👍
8:48 We talkin hide the angry beaver marks... or Hubble surface finish?
He's serious here "MUST BE ELIMINATED "
@@ChrisMaj Rolling over here!
I always wonder watching your videos how do you probe you tools? maybe in one of the next videos you could show a bit of how you do it ?
It's pretty simple. I'll take a test cut, measure it, and enter it into the offset.
FANUC ❣️
The only language for the pros
1:30 😱
F0.8 ????
Its a thread ❣️
LoL my max on a takisawa la250 was F0.3 😅😂
If I did the math right, I think that initial cut was removing over 4kg of metal per minute. That's wild.
I wish I got a bonus for every kg of chips.
Gday Chris, plenty of material removal there mate, beautiful job, cheers
Я был мастером механики после технаря У меня дед в бригаде был токарь за пенсию Никогда не люлил чистовую Ставил режимы так что бы стружка аж до светильника доставала летела Диверсант Соседи по цеху работать не могли
wow
Вы умеете экономить металл :-))
Part broke probably because the blank was not forged but machined from cylinder ... like this one.
Yeah, that might have had something to do with it, but you would not believe the things that they break at the steel mill.
Don't blame the machinist, When the engineer, Runs for cover.
Скажите пожалуйста,а почему вы так резец установили ?
Что значит "вот так"
@@ChrisMajперевёрнута режущая часть ,где пластина на резце номер 1
Посмотрите это видеоth-cam.com/video/9s0ksJ5Zj4k/w-d-xo.htmlsi=KkFinH4N4q72vk8X@arturreznikov3268
@@ChrisMaj спасибо ,это видео все объясняет .Видимо я его не смотрел ,так как недавно на вашем канале.Очень интересный у Вас канал ,смотрю с удовольствием .Если честно ,я таких резцов ни разу ещё не видел ! Удачи Вам в развитии канала ! 🤝👍
I assume your finger nail is calibrated at a hardness lab after every trim. When I worked at a gas turbine overhaul company tool mark (or any surface marks for that matter) removal was extremely important. In aircraft engines the parts are highly stressed so they can be as light as possible and are therefore susceptable to crack formation at stress concentration points. Much time was spent with Cratex sticks smoothing out radii etc. Even grinding surfaces was problematic as certain materials are subject to grinding burns which can lead to crack initiation. These grinding burns are invisible to the naked eye and only show up when etched with nitric acid. The surface will look perfectly smooth but be burned and unacceptable for use. The parts you are making, while likely subjected to huge loads, are very heavily made and probably develop relatively low stresses in the material. While tool mark removal is good practice, it likely would make little difference on this part. Ken
I believe that's rough turn rolls typically are finished ground to size.
Another failure point is grease fittings
Might have been bad quality steel that made the part snap, but toolmarks? NO!
...Конечно....такие станки.....А ты попробуй этот вал выточить на ДИП-500......
Hi, again I am wondering, is the center in de main spindle (slightly) floating and only used as an axial stop? Because it would be over constrained with a fixed center, you could be doing huge damage clamping the jaws unevenly.
Great removal rate BTW. At work I was discussing milling vs. turning for hogging out big parts, because the Mazak VTC does not lend itself well to high removal rates, one of our big lathes will do it much quicker. Also it appears the chip thinning milling strategies do not work equally well on different machines.
It's kinda like working between centers. You install the piece between centers, you put an indicator on it and then you tighten the jaws .
@@ChrisMaj Thanks! Do you mark the deviations on rough material and make sure the numbers don't change while tightening the jaws? Normally a drive dog would be used between centers but for large work this is probably not an option.
Pretty hard to avoid tool marks on a THICC chunk of steel like this...
А что же вы не всю последовательность операций показываете ?
Это будет двухчасовое видео.
Who shovels out the 800kg of shavings?
The chip conveyor.
✋🏼🇦🇺👍🏼
Machine RPM
вы видите как делают в китае гвозди)))
Kutos!
PRO!!!
where is it cnc?? heavy work, but, why tis rubbish tool holder...
What are you talking about?
"Let's be realistic, This thing did not break because of tool marks." "But all tool marks must be smoothed" obviously the new engineer covers all his bases. It looks pretty too! Shuffle blame from design to manufacturing. From manufacturing to maintenance, from maintenance back to design. Welcome to Boeing. Why did it FAIL. The design did not account for reasonable maintenance and manufacturing flaw allowances. "The reasonable test" And what is a reasonable engineer to do, cover those bases in design. DESIGN FAIL, PERIOD, or maybe a rough finish as well. Or lack of maintenance. Needed more grease as well. Probably needed the newer flux capacitors installed as well.
That poor, poor live center
That poor live center can easily handle 11000 lbs. That was nothing.
@@ChrisMaj🤓
So ein Unfug. Nach dem ersten Schruppvorgang mit der Bügelmessschraube zu messen. Da geht ein versierter Dreher mit dem Meßschieber dran.
This is a wast of material and plz y do edit the part wer u lift it we want to learn how to safely switch it
How is it a waste of material? Yeah, we could have used a forging, but it takes a long time to get them,and in repair, machine shop time is what we don't have cause everything is a HOT JOB
А почему без охлаждения?
When exactly do you decide to use coolant or not? There doesn't appear to be any difference between the times you are and when you aren't.
If I don't use it, it's mostly for video purposes.