Concave Spherical Block / CNC VTL / Aluminum Bronze.

[@zixxatroll4902]

I just wanted to say thank you, I know your not a "teaching channel" but by watching how you do things on the lathe it has helped me to get a job in the heavy engineering sector. I used what I learned from watching your videos to smash my interview! So thank you!

[@ChrisMaj]

Well I'm glad you found it helpful.

[@andreweppink4498]

Good for you. That's the way to do things.

[@mikasaari6338]

I have been working in cold rolling plant, 3 sendzimirs and 2 skin pass mills + numerous other lines. All have winders and mandrels. But I have never seen how these hesvy parts are machined, so when I see these, time goes by so fast!

[@kevinsnell1622]

I spent 15 years CNC production machining. It paid the bills but wasn’t really my calling and I left that career in decent standing. When I watch videos like these I find myself remembering fondly work pieces with long cycle times and being mesmerized by the chips flying and the coolant making steam and other extreme conditions. I still have machine shop dreams while I sleep that usually has something going on where I am doing something on a mill that is out of my league and the part is not turning out and I can’t explain myself to the boss....then, fortunately I wake up! Machine tapping always freaks me out. The science behind that operation still blows my mind.

[@shawnhuk]

Try a manual shop if you’re still interested, or can find one near you. I run a small manual machine job/production shop. It *always* keeps me on my toes. Sometimes too much. But I’ll take my manual machines over cnc any day.

[@backho12]

Welcome to the wonderful world of CNC and carbide cutting tools!

[@fasteddie4107]

When you started, the work piece was so big and ugly, and out of round that I thought it was concrete. Nice outcome with a beautiful finish. Thanks for sharing this.

[@ChrisMaj]

Thanks for watching.

[@paulbennett6379]

Nice seeing top parts made on a well looked after vmc the machines in my place are battered from 3 shifts on them non stop,,,

[@jimmurphy6095]

Awesome! That was me who asked for the size comparison. Thank you very much! Gives a sense of scale to the operation. Great job, Chris. Thanks again.

[@ChrisMaj]

Hey Jim, haha glad you enjoyed, thanks for watching.

[@BMan100]

Oh god, I remember dealing with this sort of thing on plates, when they welded the bronze onto the 4140 it caused everything to bend like a pretzel towards the bronze... hated it.

[@userwl2850]

Well that's real pretty Chris. Glad to see the tap didn't snap 😓... I read a comment from you on edge precision... Peter's channel... TREPANNING and parting off leaving the core. I'm going to make a video... just for you and Peter.. 😎 .. I'll do it Monday and put video up Wednesday.... ok? Title will be "for chris and Peter"

[@ChrisMaj]

I'll be the first one to watch it, just don't hurt yourself 🤣

[@Juxtaposed1Nmotion]

@@ChrisMaj you are all incredibly talented people and a treasure of this earth, shout out to Peter for getting my Algorithm to find you guys!

[@sshep7119]

I guess I need my own channel to be worthy of a mention. Sad face. Just busting. Grab the camera....to the shop I go!

[@ChrisMaj]

@@sshep7119 Yeah, get the camera and go make some chips or swarf whatever you like to call them 👍

[@rcaddictedsenior1000]

Very nice! Looks similar to the cap stand heads I had to repair several years ago that required a ceramic surface. Straightened wire for welding rod production.

[@Kevinator-um2zx]

I make similar parts just like this but with a manual mill lathe, it's crazy how accurate this machine is, I like manual mill tho. Kinda surprised these parts aren't premachined just to help wear on this beauty

[@paulbennett6379]

Brilliant work as usual chris

[@nategoodwin3329]

That dial is going to file a complaint with HR. 😂😂😂

[@sshep7119]

Another great job, it is great to see so many machinists coming out of the woodwork with videos of their well developed skills. I really think there are many who benefit from videos other than "will it break, can i break it" or hour long videos of simple tasks to milk the Patreon cow. Well done guys and gals. On a separate note, if there needs to be a 7/8 bolt hole why not just drill from the top surface once you skim it, you would be able to avoid the excessive RPMs when the machine compensates for the diam of the cut with CSS. I always try to minimize the amount of high RPM CSS comp by drilling beforehand, it reduces the wear on inserts and the program runs quicker as there is less speed up/slow down intervals. Not nit picking, just a thought.

[@clickblol]

A pilot hole in the center is the better solution.

[@jthepickle7]

Back in the '70s our shop used to get HUGE chucks - 2 ton + - from Pratt & Whitney Aircraft, perform a built-up and send back. This reminded me of those times.

[@captcarlos]

Fantastic Chris, you get to do some amazing jobs. I've never needed a lifting device for a job, a couple of blokes very occasionally, but on a compleatly different scale to you or David... Thanks for sharing.

[@ChrisMaj]

We do get a lot of jobs that come in more than once. Big machines, big parts. Sometimes I do some small work, but it's awkward on large lathe.

[@clemwyo]

Thanks for posting your work, that is a beautiful piece. Craig

[@asaelrobles9287]

Very similar to a VTL Toshiba TUE with live tooling that I run,easy money ,good work man,great videos

[@alanpecherer5705]

Nicely executed and nicely shot! Thanks, Chris!

[@mrlover013070]

Don't know why but I found very relaxing your video. Liked and subscribed thanks.

[@oliverbrock8593]

8:12 "Ladies and Gentlemen, your captain speaking. We started our engine, please relax and enjoy our flight to Ibiza"

[@Kevinator-um2zx]

The measurements taken at 11:38 are accurate lol. I love seeing a good hand on taking measurements like that, very precise, this kinda work is almost therapeutic to me at least.

[@vinoddusang7784]

I operated machine same like this machine....Doosan 1100 ....I worked on it for 3 years and its really Very awesome to operate...IT has 3 axis ....

[@rodrigomolina5475]

Exelente trabajo amigo chris y bonito vídeo saludos de Torreón coahuila mexico 👍🏾👍🏾

[@ChrisMaj]

Gracias amigo 👍

[@mehmettemel8725]

Another interesting piece of work Chris.Just wondering what the welded material is color looks like aluminium bronze.

[@joeanderson1769]

Very cool.filler metal, was that some sort of welding or coating process?

[@mehmettemel8725]

@@joeanderson1769 It's clearly visible that it's welded.

[@ChrisMaj]

I think it's aluminum bronze 954

[@hinz1]

@@ChrisMaj Is that some kind of clutch or pulley wheel, so they need CDA954 for wear resistance?

[@joeanderson1769]

@@mehmettemel8725 some welding processes have names like "scratch cote or hard cote or wear cote" referring more to what function they perform rather than being an actual coating.

[@25vrd48]

Nice finished piece .

[@eoutro9049]

Very beautiful... but why add the yellow metal? What's its purpose? Thanks

[@Tugabud2]

Its big, its expensive, its perrty to look at...But what is it's use? What is the purpose for which it was made???

[@dylanshandley1246]

He says in other comments that he doesn’t know where it’s being used or what it’s doing, it could be cause of a confidentiality thing he has in his contract with his employer, could be something Aerospace related, could be a million other things, but worrying about that isn’t his job. His job is to make the thing you’ve been given a drawing of and you need to make it to the specific specs on that drawing, that’s it generally.

[@ChrisMaj]

@@dylanshandley1246 Amen to that.

[@ChrisMaj]

It is used in a steel mill, that's all I can say.

[@fubartotale3389]

It doesn't matter, as the machinist you couldn't care less. It's what youre working on today is what it is.

[@andrewtetley3883]

Yet another great piece of work Chris, I’ve wondered about the coating too but my head jumped to a titanium coating so I’m another person wondering about the coating Chris 😊😊. I also wondered how long it takes you to true up a piece this size to 0 run out???

[@ChrisMaj]

The drawing calls for DIN 8555. I suppose that's what they have used. It usually takes few minutes.

[@baekyeonultraprecisionnkl9574]

How are you ref we are ultra precision company BAEK YEON Mobile [phone] Email [e-mail] Nam kyu lee South Korea

[@AlwaysSunnyintheShop]

Saw your post on Reddit and I have to agree- work spinning on a vertical table is so much scarier than on a horizontal axis. Not sure what it is, but even at low RPM that table moves awfully fast around the edge- that's not a merry go round you want to get on! One of my customers has a 14' table on their VBM and even at 20 rpm is't scary to stand next to. Great video, as always ----Aaron

[@OkammakO]

I feel the same way and I think it's something in our reptile brain about tripping or falling. If you trip or fall towards a traditional lathe you might get punched by the chuck or knocked away. If you fall into this you're going on a nasty ride.

[@backho12]

Nah, you'd just have to run really fast and not stop. Also, don't forget to jump over the chuck jaws.@@OkammakO

[@justinbelshe]

Leading the market in semiexotic swarf production.

[@gaetanbellavia8702]

Ultra haute précision mécanique top et terriblement excellent

[@mftmachining]

Excellent job, thanks for showing.

[@catlee8064]

its 0600, ive been on a youtube marathon of random videos for the past 2 hours and its lead me here....im not a CNC operator, i have no idea about inserts.....I need to get a grip of my life!

[@АлексейШульга-ж7т]

Красиво получилось) Как говорят - лайк и комент в поддержку автора)

[@ChrisMaj]

Да, ставьте лайки, прокомментируйте и не забудьте нажать на колокольчик с уведомлением. Спасибо друг. 👍

[@johnlawler1626]

Beautiful piece of turning and well filmed 👍

[@ChrisMaj]

Thanks for taking the time to watch my video.

[@kylemichael2175]

Awesome work as usual. Thanks for sharing

[@ChrisMaj]

Hey, if you watch them I'll try to make them 👍

[@dadgarage7966]

It looks like something for a large wristwatch.

[@ЛитвинЛитвинов-к8ш]

Готов работать на таком станке. отработал на похожих больше 10 лет.

[@jaredjohnson3043]

Great video as always! What was the purpose of the aluminum bronze being welded on the OD of the part?

[@ChrisMaj]

That's what the drawing calls for, but I'm not sure where that thing is used.

[@jaredjohnson3043]

@@ChrisMaj That's bizarre. When you were roughing/finishing did you program in a speed/feed change for the separate materials or did you keep it all the same?

[@ChrisMaj]

@@jaredjohnson3043 Same feed and speed but I did measured the top and the bottom cause sometimes you get different readings on metal and bronze.

[@MrReichennek]

i think the part i'd hate the most about this job is dealing with those big mics, just about anything past 12" feels so floaty and bad compared to small mic's

[@minercraftal]

First time see that big of a caliper in a video😂

[@Krmpfpks]

That ‚micrometer‘ was also a first for me.

[@minercraftal]

@@Krmpfpks thanks for correcting that😂

[@Krmpfpks]

@@minercraftal I didn’t mean to correct you, the caliper was also gigantic and I have never seen one that big. But the micrometer melted my brain, how would you even call it 😂

[@minercraftal]

@@Krmpfpks 😂, I am not sure which is the name, I studied “ micrometer” at school, but I don’t know what reason I forgot about it and started to call it “ caliper”... and you reminded me that ~

[@chrisyboy666]

I have nothing but respect for the guys actually doing the job but people need to realise you can’t watch a video on KZbin and become a turner or Miller....takes 5 years on the shop floor and 5 years day release @ college...to complete your Apprenticeship here in the Uk....then your classed as still basically a newly qualified machinist....It took me another 10 year of planning and then programming jobs my self before I was classed as what I am today an applications engineer........Now working for PAMA/Carnaghi...and still I learn something new everyday...You never learn everything in this game if you lived a 1000 years and...I watch video on here....riddled with mistakes not saying yours by any means....People just need to be careful and understand what their watching.....and realise there’s more to this then watching a few vids on KZbin

[@ChrisMaj]

You are right about the experience part. I've been doing this for about 25 years and that does not include the trade school. I admit to some mistakes here, but most of my work is one-offs so I don't really have the time to tweak the program and the tools to perfection just to save few minutes here and there. I said in some of my videos, this is not a learning channel, it's more of a showoff your work I guess.

[@chrisyboy666]

@@ChrisMaj ....True I Might have come across abit harsh on here that was never meant to be the case I enjoy watching your videos and I’ll be honest ...the last comment didn’t really apply to anything I’ve watched on here ...so full disclosure I’ll get that in now ...you can only do ya best ....but some videos I watch on here I’m left speechless and this is not being racist but there all from the other side of the world China India etc etc ...the list goes on....it’s horrendous the mistakes and bad practices and they don’t even realise...there is a saying in the uk you pay peanuts 🥜 you get monkeys not a truer word said a skilled machinist knows his worth and you obviously are so please keep it up and I’ll Continue to watch and enjoy your vids

[@tristinknee5650]

This is awesome. You use ESPRIT right? Would you mind sharing your programming process sometime? Part setup, tool selection, toolpathing, etc. Thanks!

[@ChrisMaj]

All of my programming is done with fanuc manual guide and G-codes

[@HH-Machining]

To use a micrometer that large and getting consistent measurements, needs craftmanship :)

[@ChrisMaj]

It does need a little get used to.

[@jakeharding4510]

Use that ratchet, its there to ensure u put the exact same torque on the workpiece as u did the test piece, dont ever assume u have the right feel

[@ChrisMaj]

@@jakeharding4510 My feel hasn't let me down yet 😉

[@jakeharding4510]

@@ChrisMaj hahaha you say "yet"

[@rextransformation7418]

11:31 Will recognize that tiny squeak from a micrometer anytime! 😁👍 (might need earphones)

[@bones357]

5:30 "Hey greenhorn, go grab that lunch order".😉

[@ChrisMaj]

I was like "what the hell is he talking about " and then I noticed that piece of paper 😂

[@Grantherum]

That Aluminum Bronze welded in section for a bearing surface? looking good either way. Used to work in a place that did some large stuff like this, I sadly was relegated to do the little stuff.

[@even1s]

Very nice machine

[@patheron7812]

Why was the exterior built up with braze? Was there an error in some previous operation?

[@KOMARpce]

Jak zwykle kozak pozdro z roboty w PL

[@ChrisMaj]

No muszę się jakoś przebić do tego YouTuba .👍

[@KOMARpce]

@@ChrisMaj też bym mógł ponagrywać coś lecz robię o wiele mniejsze elementy teraz mnie wrzucili na typowa narzędziowke obrabia głównie rury na turze 710 mn na sinumeriku 808d o wiele łatwiejszy od fanuca zawsze miałem problem z manualguildem cykle pisałem z palca

[@ZolotojParovoz]

@@KOMARpce sinumerik в нестандартной ситуации капризничает. fanuc исполнительный как солдат. при работе в диапазонах IT 6-7, результат стабильнее

[@gwharton68]

Can you say what the part is used for? With the aluminum bronze area I assuming the it is something electrical.

[@thomasseitz5477]

I’m curious of that myself, I was thinking for a ship or something in the ocean.

[@caminojohn3240]

Quick question. What do you do with the shavings? I can see that if you are running steel, you can place it in a recycling bin for such a material. But if this is aluminum / bronze, does it get placed in a different bin? Or does all the metal get thrown away in the landfill or just gets dumped in a common recycling bin? Some of your videos look like 50% to 75% of the material is milled away.

[@ChrisMaj]

If I'm doing just bronze then it goes to separate bin, but parts like this where steel is mixed with bronze everything goes in one bin and then it's picked up by recycling company. Do they separate steel from bronze somehow? I don't know.

[@caminojohn3240]

@@ChrisMaj Thanks. After I posted I did a face plant because of the obvious, they use a magnet. Most likely they shred it a bit more to to break everything up into similar sized pieces.

[@keithgutshall9559]

You had the drawing upsidedown?

[@ChrisMaj]

Yeah at some point 👍

[@francisjonas9467]

Fiquei curioso para saber como é feito o enchimento com alumínio/bronze.

[@benjaminsisko502]

E EU QUE PENSEI QUE ELE TINHA MATADO A PEÇA, KKKKKK

[@mikemendola3564]

That's a beauty!.....what is it?....

[@lechifre77]

Buongiorno Nell'ultima fase, non viene rovinato il diametro esterno con le griffe dei morsetti? Complimenti ottimi suggerimenti!!

[@Gkuljian]

What is it for? Can you tell us? And why was it welded? I can usually tell, but not on this one.

[@ChrisMaj]

It is used in steel mill.

[@Gkuljian]

@@ChrisMaj Aha! Thanks. By the way, I use a roller tip on the indicator for rough stuff like that.

[@vitalii6477]

Good video, Goodway(1600 approximately)👍

[@ChrisMaj]

Yama Seiki/ Goodway GV-1600M

[@ТварьНегосподня]

Зачем было наваривать сваркой? Так же непонятный момент с измерение по черновой поверхности...

[@Parhomiv]

Насколько я понимаю, то наплавлен упрочняющий слой с характеристиками отличающимися от тела детали, а точное позиционирование заготовки нужно для того, что бы сразу начать обработку с максимальной эффективностью, а не шоркать пол дня выбирая биение допущенное при неправильной установке узделия

[@jungbrain5989]

That's great! 😍

[@ChrisMaj]

Glad you like it!

[@randydewees7338]

A block? Like for holding optical elements during fabrication?

[@Baard2000]

Awesome!!!!!

[@media32hr]

Bravo!

[@robertriquelmy7193]

Very nice, but what is it?

[@jefflindsey9589]

Does the customer provide the machining program for the part or do you have to write it? Thanks..

[@ChrisMaj]

No, in my case it's all hand programed.

[@hinz1]

How do you load those parts into the machine? Is it open on top, with crane overhead?

[@ChrisMaj]

Yeah, the top is open so I use the overhead crane.

[@ZirraAdalisk]

As always, a wonderful video. What kind of song is that at the end?

[@ChrisMaj]

Some random music from KZbin.

[@ZirraAdalisk]

@@ChrisMaj Kundalini Rising - Magdy Haddad

[@6AL-4V]

I still see you are using Kennametal inserts. Planning to upgrade?

[@ChrisMaj]

That is not up to me, but there were some KORLOY inserts.

[@wolf310ii]

Why upgrade? For me there is nothing better than Kennametal Hertel Fix Perfect for heavy duty work

[@normanbarilleaux4339]

Gee if you would have turned the facing tool around, placed it vertical, and ran the spindle the opposite direction you could have faced and turned with the same tool

[@bullsboat1]

You had to braze a lot of brass just to take most of it off

[@evandrofernandesmendes2152]

Tem tutoria para centro de usinagem no Guide

[@szuler666]

H e he a nie szkoda czujnika na ustawianie na tej surowiznie . Pozdro .

[@ChrisMaj]

Nic mu nie będzie on i tak już swoje przeszedł.

[@canalmapirimanoel2301]

Aí sim 🙋🤝👍👏🇧🇷

[@Watchyn_Yarwood]

I know little about CNC so I was wondering if you program it to increase the surface per minute as you approach the center of the part? To clarify, when you are machining the top surface.

[@ChrisMaj]

Constant surface speed (specified by G96 on most machines) is a turning center feature that automatically determines the appropriate spindle speed in revolutions per minute.

[@andreweppink4498]

What is the part? Looks like a bearing shoe or something.

[@ChrisMaj]

A lot of times I'll just get a piece of metal, drawing and I don't even know what it does or who is it for.

[@1947samlok]

在粗糙表面不適宜用dial gauge 作測距用。

[@neilattaway2182]

Nice job. But what is it for ?

[@ChrisMaj]

It is used in a steel mill.

[@mattcaesar5781]

When facing to center what was your g50 set to. Nice work

[@ChrisMaj]

I think it was 180 rpms.

[@theenchiladakid1866]

What's all that funny colour looks weld all about?

[@ARIFINLATHE]

Fantastic...indonesia do it. ❤👍👍👍

[@orgcoast5990]

How did you extablish the datum point?

[@Dukhniwarn]

Can u please send me c-axis programming example of this machine ??

[@kamikaze7778]

👍👍

[@rextransformation7418]

6:04 Why the soldering?

[@pit3003]

Goodnight...

[@caminojohn3240]

Another ignorant question. I see you are using some sort of cooling fluid. Is this stuff reused or pumped thru some filters to be combined with concentrate? Does it all get dumped in a hazmat tank to be disposed of later. BTW, my old metal shop teacher, if he's still alive, would consider this channel the ultimate in reliving his past.

[@ChrisMaj]

Yeah, the coolant is replaced once in a while depends on the machine and then picked up by biohazard company.

[@Michaelsloncehammr]

You sure that’s aluminum ? Looks like 4140 or A2

[@ChrisMaj]

0:03 the weld is aluminum bronze.

[@frankfillioe6173]

Good looking part.

[@carof08]

Imagine the cost of that

[@IcetipsVideos]

Was it revealed what this was made for?

[@ChrisMaj]

All I can say is that almost everything I do is used in a steel mill.

[@markstock3510]

Can you please show that insert against a rule, Thanks

[@ChrisMaj]

You can check out this video at 0:05 kzbin.info/www/bejne/ZoC0hn9uptKLars

[@semperfidelis8386]

how do you gauge a radius that size?

[@TheMadMonk9]

Chris, what was the part for?

[@ChrisMaj]

Something to do with the steel mill industry

[@tojekonecna7450]

👍👍👍👍👍👍👍👍👍👍👍👍👍👍

[@FlopFlap1]

Why for some cuts minimal lube and others the usual flood?

[@ChrisMaj]

Just for recording so you can see better.

[@Dukhniwarn]

I am also honor Seiki vtl operator

[@alabar9795]

Looks like steel to me?

[@baodao170]

How do we change tool

[@RahulYadav-zt4tw]

Sir please guide for offset