Roll | Top Furnace Pusher | CNC Lathe | Hankook PROTEC-9NC

[@mystiquesquared]

Those FIX8 inserts are absolute studs. Stellar work as usual.

[@shannonmariehauck]

Awesome video! I love how strong those lathes are. Turning a 2 ton piece perfectly on center.

[@theofficialczex1708]

With that -0.001 tolerance and tool mark callout, the machine shop must've loved this particular engineer very much...

[@college533]

drawing appears to have a double tapered roller on that diameter, pretty common tolerance for a bearing diameter, typically I'd call it out as nominal ID of the bearing with a positive deviation as opposed to calling out nominal at 6.301

[@ICA17887]

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.

[@Hootnik]

Dziękuję, że dzielisz się wiedzą pokazując to, co robisz. Uwielbiam te filmy. Grubym wiórem!

[@brendanjones3395]

I could watch this all day. I miss turning & milling. So satisfying.

[@robertoswalt319]

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.

[@ChrisMaj]

1045 cuts really nice.

[@PundhyLuzino]

Ini benar2 pekerjaan mesin bubut yang menakjubkan, ❤

[@redryderaus]

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 🤣

[@ChrisMaj]

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.

[@larkalfen9510]

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

[@googlesux1062]

​@@larkalfen9510 Probably be pretty big money to have such a large part ground. And with the right tooling, a guy could probably hit just about surface finish requirement, provided the money's there.

[@larkalfen9510]

@@googlesux1062 yea that's probably true

[@mishapesic9323]

​@@Droolbabysteel mills are another...you would be surprised how tight their rolling mills need to be to produce perfect automotive sheet for the picky customers.

[@mehmettemel8725]

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.

[@ChrisMaj]

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 "

[@paulcooper9135]

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 🇨🇦

[@SubramaniamLakshminarayanan]

One surefire way to bring these people to their senses is to add extra for grinding/honing/lapping the part to remove tool marks. 99% of the time you'll hear - fine, just keep it to the minimum possible. That; 's their way of acknowledging their stupidity. BTW, this part is just a pusher, not some ultra-critical clearance application. A couple of toolmarks will in no way interfere with its function.

[@paulmace7910]

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.

[@ChrisMaj]

The print is from 1965, I wasn't even around then😅

[@matiastripaldi406]

How would you cut it otherwise? By step turning and then filing? You cant use a form tool on a part this bid

[@matts2436]

perhaps a hydraulic tracer@@matiastripaldi406

[@prestongood8394]

@@matiastripaldi406 Ball/ radius tool post

[@fredrikcarlen3212]

@@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!

[@ericdrouiche9047]

J'adore ce travail de haute précision et de haute qualité.

[@TexDrinkwater]

That mill scale and rust is no match for a good carbide insert. Nice work as always!

[@michaels1984]

You're probably the best youtube machinist out there

[@ChrisMaj]

Not even close, but I'll take it

[@smusselman1]

Great video Chris! Nice to see the ole lathe eating that material for breakfast. Was waiting for you to set up a steady rest and face the part to length. Leaving some meat for the mill in the end was probably for the best. Cheers from the land of oil and gas in Canada 🍻

[@BruceBoschek]

Beautiful work as always. I always learn something new from your videos. Thanks very much. Have a good weekend.

[@ChrisMaj]

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.

[@BruceBoschek]

@@ChrisMaj We learn from you by example and where necessary by reading between the lines. We appreciate your videos very much!

[@nutterknoll69]

Those are some crazy tight diameter tolerances for a shaft of that size!

[@ganeshpandi2666]

Poor man roughness test method😂😂 same to you❤

[@smoke3090]

I think the old roller was made on a conventional lathe and the radius were made roughly, which is why there is an emphasis on not leaving tool marks to avoid stress concentrations, in CNC machinery the perfect radius is made but in conventional machinery it is more difficult.

[@localele1]

I always enjoy watching the turning of big radii. You will want a big Cratex stick to polish those curves.

[@ChrisMaj]

Honestly, I've never used one of them. I'm just a sandpaper guy.

[@localele1]

@@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.

[@michaelnaretto3409]

CNC is fascinating but nothing beats old school machining...

[@whitneyneely2880]

Love watching your videos, I learn a lot 👍🏿👍🏿👍🏿

[@ChrisMaj]

Awesome, thank you!

[@hansdorfer3371]

How many cutting edges of the Insert did you need to use to remove 800kg?

[@ChrisMaj]

Same edge for both ends, and I probably could have done another one. It's a 1045 ,it cuts really good.

[@andrewnorris5638]

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.

[@ChrisMaj]

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.

[@bullfrogmachine]

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?

[@ChrisMaj]

Horizontal boring mill.

[@bullfrogmachine]

@@ChrisMaj maybe some footage of that one day???👍

[@zyndapp800]

That would be cool to watch😎

[@akumafuhen]

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.

[@larryblount3358]

How do you touch off the tools and setup the controller for the different tools?

[@elanjacobs1]

Fanuc manual guide i has a teach function for tools; you just take a cut and tell it what it measures

[@ChrisMaj]

Take a test cut, measure it, and enter that number into your offset, and I would do the same thing with other tools.

[@larryblount3358]

Thanks. I assume you set the z axis the same way? Facing (partial) and set z0.

[@elanjacobs1]

@@larryblount3358 yep, or z=whatever if then end of the part isn't convenient

[@airbus7808]

That is ART!

[@joseamerico2612]

Nice work as always!!! 🇧🇷🇧🇷🇧🇷👏👏👏

[@johnlawler1626]

Came out well 👌 thanks for sharing 👍

[@lancer2204]

Slick work as usual.

[@ChrisMaj]

Much appreciated

[@ShainAndrews]

8:48 We talkin hide the angry beaver marks... or Hubble surface finish?

[@ChrisMaj]

He's serious here "MUST BE ELIMINATED "

[@ShainAndrews]

@@ChrisMaj Rolling over here!

[@howtousemetallathemachines6478]

Excellent job, top quality.

[@tamachining]

Do you have to probe in after each tool change?

[@ChrisMaj]

As long as I'm not taking them out of the toolpost, then no, but that's only 4 tools.

[@tornyosgergo]

Amazing work. The fact that the end result is a bit heavier than my car is a bit scary though.

[@AdikSpiker]

hello!!! can you show on video how you center on both sides on such workpieces?

[@rupert5390]

The piano man does it again- magnificent job .

[@damionparson247]

No marks on the radii? No problem! Great job! Thanks for sharing!

[@busi1968]

Лучшая работа в мире!!!!!!

[@Nunak91]

That's some impressive cuts! Damn

[@ChrisMaj]

The tool could take bigger cuts, but my lathe is like, hell no.

[@beni_122]

How large is the concentricity and straightness deviation after roughing? before the pre-finishing?

[@ralphpavero7760]

That was impressive well done

[@kenmandelin7812]

Lathe work is very satisfying, to do or watch. Metal or wood.

[@josiah3807]

I cannot get over the enormous micrometer (which is crazy to say)!

[@smit7120]

Myself being in quality control I always think about one mistake can be very costly especially when tolerances are so tight

[@JkLow]

Great skills and Great machine 👍👍👍

[@PundhyLuzino]

Mesin bubut yang menakjubkan 👍👍👍👍👍

[@tuppyglossop222]

When/how did you face off the ends?

[@ChrisMaj]

Horizontal boring mill.

[@roysradnick9239]

Fantastische Arbeit 😊

[@seancarroll7413]

Is that DOC 7.62mm off the radius? So 15+ mm of the diameter? Can you share more info about this tool? What kind of inserts are you using? I turn big 42crmo4 shafts just like this on a machine just like this, but I’m running at 0.5mm/rev feed and 4.5mm DOC off the radius!

[@ChrisMaj]

Yes, it's a 7.62mm per side. kzbin.info/www/bejne/b6STnKaAar-das0si=e-5Xte_u15refAt-

[@zainalyahya8905]

The Big job . Your Good machinest crist

[@MechanicsInsights-uz7om]

This is called passionate about work 👏👏

[@LeeCardona]

Very impressive work. About how long of just cutting for that beast of a part?

[@bigbattenberg]

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]

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 .

[@bigbattenberg]

@@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.

[@even1s]

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.

[@andrexxavierr]

What is the actual machining time?

[@Teqiii]

Look like enterprise AFS located in Sedan, Great job!

[@parnuzutech]

good job👍

[@vmin8911]

Very very good brother form akbar sheikh Pakistan

[@azietxu5779]

Está muy bien qué muevas el reloj comparador para que veamos que no está fijo!!😂😂

[@arthur_good_man]

How long did this part and setup take?

[@TaKo-g7j]

ใบมีด เจ๋งจริง คมจัด

[@pedub2222]

Thanks for the video, what's the P100 ? is that a dwell?

[@ChrisMaj]

I'll have to look into it cause I never do anything with that.

[@maciejhof]

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 ?

[@ChrisMaj]

It's pretty simple. I'll take a test cut, measure it, and enter it into the offset.

[@MattysWorkshop]

Gday Chris, plenty of material removal there mate, beautiful job, cheers

[@RealNotallGaming]

1:30 😱 F0.8 ???? Its a thread ❣️ LoL my max on a takisawa la250 was F0.3 😅😂

[@fdkfskfkvmk441254741]

I wonder what is the price of machining that part??

[@wendull811]

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?

[@ChrisMaj]

If by 316 you mean ss than you're asking the wrong guy. I don't do much stainless steel.

[@wendull811]

@ChrisMaj That is what I meant. Well, I'll check what the box says and go from there. Thanks.

[@DBags2724]

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

[@ChrisMaj]

1:27

[@nono-qh6sk]

How long does a job like this take you, from start to finish (planning, setup, programming, running, etc)?

[@aniveshchaturvedi9886]

for such large pieces do you consider thermal expansion in tolerance. at measuremnrt

[@sanjaytandel4626]

Nice 👍

[@ТимаМухан]

Сколько времени ушло на обработку?

[@MasterTornaci]

Gerçekten harika 👏👏👏

[@itimachinistpractical7769]

Thanks for 1k subscriber completed ❤😊😊

[@tireballastserviceofflorid7771]

Damn that's nice work. What kind of steel is that? Seems like it's on tue harder side.

[@ChrisMaj]

0:02

[@e-champion]

Keep up the good work

[@IstasPumaNevada]

If I did the math right, I think that initial cut was removing over 4kg of metal per minute. That's wild.

[@ChrisMaj]

I wish I got a bonus for every kg of chips.

[@39mexlis54]

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

[@juliusmilo5959]

Nice...

[@mathewdasilva4421]

.032 feed is awesome

[@arturreznikov3268]

Скажите пожалуйста,а почему вы так резец установили ?

[@ChrisMaj]

Что значит "вот так"

[@arturreznikov3268]

​@@ChrisMajперевёрнута режущая часть ,где пластина на резце номер 1

[@ChrisMaj]

Посмотрите это видеоkzbin.info/www/bejne/b6STnKaAar-das0si=KkFinH4N4q72vk8X​@arturreznikov3268

[@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 ! 🤝👍

[@RealNotallGaming]

FANUC ❣️ The only language for the pros

[@johnsexton7621]

5/8 of an in or greater on the cut

[@aniveshchaturvedi9886]

always chase your mark

[@hmw-ms3tx]

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

[@patrickgloss2096]

I believe that's rough turn rolls typically are finished ground to size.

[@ВалерийЛеус-п9г]

А что же вы не всю последовательность операций показываете ?

[@ChrisMaj]

Это будет двухчасовое видео.

[@tomtd]

Beautiful

[@levettp]

Part broke probably because the blank was not forged but machined from cylinder ... like this one.

[@ChrisMaj]

Yeah, that might have had something to do with it, but you would not believe the things that they break at the steel mill.

[@znk0r]

Who shovels out the 800kg of shavings?

[@ChrisMaj]

The chip conveyor.

[@Ramakteknik36]

Strong❤

[@akunngewibu1676]

Watching this asmr for sleep

[@stevenhorne5089]

Don't blame the machinist, When the engineer, Runs for cover.

[@Techfushionhub]

Good job

[@Liquidrems]

Вы умеете экономить металл :-))

[@junes2k]

10:58 wtf camera guy? that's the longest shaving i've ever seen & you just cut away from it. damn

[@araw540]

Pretty hard to avoid tool marks on a THICC chunk of steel like this...

[@ApukEldar]

👍👍

[@douglasrizzo9210]

LOVE the video, but please, no long sleeves.

[@RicoJovanni]

PRO!!!