Jup what you spent three hours on that part to bad let me fucking sandblast and powder coat the whole thing including the bearing surfaces because I don't know how masking tape works.
Try milling inserts :D they are made for interrupted cuts lol. btw.. i reeeaally love this channel.. nothing beats watching these videos after a day of machining lol ahahah
Somehow missed this. 0:13 - First looked like the bore was the controlling dim, but another look at the blank dims say it's been rev'd to a one-piece part. 3:38 - I see, but can't interpret a run time. Do you ever program cuts for overnight while you're gone? 9:00 - Finish cut? Gonna be a slow pass to get a good surface finish (don't see a spec, but it could "unless otherwise noted") 13:17 - So the 9:00 cut wasn't a finish? 15:00 -WIH are those marks? They appear consistent; part-handling tooling? 15:57 -Luckily for the heat-treater! 16:03 - The H/T really moves the metal around. 16:37 - Never had to cut really hard parts with interrupted cuts, but that is no surprise. Inserts which deal with hard material cannot be other than brittle. 16:41 - Missed the lube holes on the drawing, now see the notation (0:13) of the supply galleys.
@@ChrisMaj My time has past Im knee deap into a carreer that took 15years to get on top of. But .. Ive started at home with a small desktop cnc mill and im building a desktop cnc lathe from scratch. It is very satisfying. Your channel inspires me to dream bigger.
I know, but I work for someone else, not like some of the guys on youtube where they own their business. I don't have the time to do retakes, set up some fancy camera. I have to get the job done and record at the same time, so for now it is what it is. This whole CZcams thing is already taking more time than I anticipated.
@@ChrisMajunderstandable. I'm a new subscriber and didn't know. I was recommended your channel from CZcams. I subscribe to a couple of channels that do what you do. I find it very interesting. 🙂
Nice vid as always and got audio at a much better level so a subscribe from me. Need to find who did the handeling of that durring heat treat and take them behind the scrap pile for a bit of a come-to-jesus meeting.
Man I'm sorry, but I'm recording with my phone. I really don't have the time to mess around with the editing. I know the sound isn't perfect, but I have to get the work done and record at the same time. Maybe some day I'll get some better camera/ mic, but right now it is what it is. Hopefully you'll stick around.
Love the shine you get when hard turning :O (Dont wanna be a keyboard warrior here) maybe for the next one is it possible to mill the keyway in the hardened state? I know fraisa makes tools used for milling stuff that hard. Reckon its less is expensive then sending it to a grinding shop
Regarding the interrupted cut across the keyway after hardening, have you tried CBN inserts? Cubic Boron Nitride. They are known for handing interrupted cuts.
Not only the man hours, and machine time, but the cost of the material ???? Glad it was salvageable, but that must have compromised the surface hardened thickness, so possibly reduced the life expectancy of the roll.
Let's just say that the hardening company didn't help. As you said, luckily the customer was ok with the roll being undersized. D2 doesn't come around cheap.
Nice work Chris and like the runout is zero, pretty amazing. It looks like the marks are the result from hard jaws or the part was dropped. Could the deep indent be filled out by hard silver solder and then machined by CBN insert as you said they are very brittle.
D2. Wysokowęglowa, wysokostopowa stal narzędziowa, która ze względu na swą odporność na korozję zaliczana jest do klasy pół-nierdzewnych (semi-stainless). Dzięki stosunkowo wysokiej domieszce wanadu i dużej ilości chromu, jest ona bardzo odporna na ścieranie i tnie agresywnie.
Yeah. They drop it in the oven, but unfortunately the oven wasn't big enough to put it upright, so they put it on its side and that's where the marks come from. Luckily we were able to save it.
Call me crazy...but I love the smell of d2 lol 🤣 I seem to do better job on mills..but I love running lathe parts much more...I'm sure I'm not the only one
The company that we always use their furnace broke down or something so send it out to some other people. Their furnace was too small to put it upright, so they put the roll on its side. High heat, heavy weight and there is the result.
PS: Ale weź to przetłumacz Hamerykańcom i wytłumacz OCB*... No way, no why, no how : ) Znaczy, cały film, bo ta jedna scenka to "da się w kwadrans, może" - ale całość? Ten język, ten humor... _____ *OCB = "o co biega", czyli "o co chodzi" - to w razie jakby szanowny kolega był ciut nie na bieżąco ;-)
Nice project and recovery. The lesson here is never underestimate the power of teamwork to ruin your work.
Jup what you spent three hours on that part to bad let me fucking sandblast and powder coat the whole thing including the bearing surfaces because I don't know how masking tape works.
Haha, they sure ruined my fucking work 🤣 Hopefully they will do better next time.
E o adevărată arta sa modelezi oțelu dar trebuie sa și cunoști meserie ca să poți face asa ceva bravo meseriașule
3:38 I don't know why the video zoomed in.
1001 SPINDLE ALARM
9001 SPN 1 :MOTOR OVERHEAT
Try milling inserts :D they are made for interrupted cuts lol. btw.. i reeeaally love this channel.. nothing beats watching these videos after a day of machining lol ahahah
Another awesome job Chris. I enjoy your workmanship and videos very much, especially since I'm retired from engineering.
Yes! You have to love that sight! Greetings from Dresden to Hungary! 🇩🇪❤🇭🇺
I'm glad you liked it. Thank you 👍
Great job Chris.
Thank you! Cheers!
Brilliant piece of work.
Yeah, it was a brilliant piece of work, until the hardening company fucked it up 🤣
El mejor como siempre
Svaka cast majstore
un vídeo motivador gracias !
That fix8 made short work of the D2,which is tough auld stuff to machine. Lovely piece of turning 👌 thanks for sharing 👍
I haven't worked on D2 steel in a while. Let's just say, high speed is not your friend. 😅
Nice...
That's some fine whittlin there Chris. I never thought any rollers of that size were solid.
Hello Chris. Another great video I like very much the big blue and yellow chips👍😉
Thanks 👍
been retired for 3 years, miss it.
That looks like the first top form roll for a tube mill, nice work!
Looks like someone knows what he's talking about 👍
@@ChrisMaj it may or may not be my day job to do design parts and upgrades for machines such as those
Man, you have more patience in your little finger that I do in my whole self not to explode over that damage!
Let's just say "I just work here " but you're still pissed cause you trying to make it look good and someone fucks it up.
Ładnie wykonane 👍
Tak to jest. Ty się starasz a ktoś inny zpierdzieli twoją robotę.
Your video is inspirational for enthusiastic people
Glad to hear that.
Great job, the chips are fantastic👍👍👍
Thanks for sharing and Merry Christmas to you and your family 👪
Merry Christmas to you too and I hope you stick around 👍
Somehow missed this.
0:13 - First looked like the bore was the controlling dim, but another look at the blank dims say it's been rev'd to a one-piece part.
3:38 - I see, but can't interpret a run time. Do you ever program cuts for overnight while you're gone?
9:00 - Finish cut? Gonna be a slow pass to get a good surface finish (don't see a spec, but it could "unless otherwise noted")
13:17 - So the 9:00 cut wasn't a finish?
15:00 -WIH are those marks? They appear consistent; part-handling tooling?
15:57 -Luckily for the heat-treater!
16:03 - The H/T really moves the metal around.
16:37 - Never had to cut really hard parts with interrupted cuts, but that is no surprise. Inserts which deal with hard material cannot be other than brittle.
16:41 - Missed the lube holes on the drawing, now see the notation (0:13) of the supply galleys.
I love that! ❤💪👏😎
Yeah, I tried, but it didn't go as planned, but luckily we saved it. 👍
Just awesome man. Im really living my desire to be a machinist through You.
Maybe one day!😉
@@ChrisMaj My time has past Im knee deap into a carreer that took 15years to get on top of. But .. Ive started at home with a small desktop cnc mill and im building a desktop cnc lathe from scratch. It is very satisfying. Your channel inspires me to dream bigger.
Machinist is the best job there ever is
Machinist is the best job there ever is
Machinist is the best job there ever is
Bardzo dobrze👍
Snažím sa.😉
Commentary and explanation would help you gain new members. 👍
I know, but I work for someone else, not like some of the guys on youtube where they own their business. I don't have the time to do retakes, set up some fancy camera. I have to get the job done and record at the same time, so for now it is what it is. This whole CZcams thing is already taking more time than I anticipated.
@@ChrisMajunderstandable. I'm a new subscriber and didn't know. I was recommended your channel from CZcams. I subscribe to a couple of channels that do what you do. I find it very interesting. 🙂
Nice vid as always and got audio at a much better level so a subscribe from me. Need to find who did the handeling of that durring heat treat and take them behind the scrap pile for a bit of a come-to-jesus meeting.
Man I'm sorry, but I'm recording with my phone. I really don't have the time to mess around with the editing. I know the sound isn't perfect, but I have to get the work done and record at the same time. Maybe some day I'll get some better camera/ mic, but right now it is what it is. Hopefully you'll stick around.
Good work
Heads should have rolled! Glad you were able to salvage it.
Love the shine you get when hard turning :O
(Dont wanna be a keyboard warrior here) maybe for the next one is it possible to mill the keyway in the hardened state? I know fraisa makes tools used for milling stuff that hard.
Reckon its less is expensive then sending it to a grinding shop
Yeah. I haven't worked on D2 steel for a long time and the hardening didn't help. Boss was happy that we saved the roll at all .
Regarding the interrupted cut across the keyway after hardening, have you tried CBN inserts? Cubic Boron
Nitride. They are known for handing interrupted cuts.
Beiutiful 💪👌👍
I am glad that the piece was salvageable. I am not sure how many hours your shop spent on that part, but I am sure it was a lot.
Not only the man hours, and machine time, but the cost of the material ???? Glad it was salvageable, but that must have compromised the surface hardened thickness, so possibly reduced the life expectancy of the roll.
Let's just say that the hardening company didn't help. As you said, luckily the customer was ok with the roll being undersized. D2 doesn't come around cheap.
That D2 shaft must costs a fortune.
I don't really know the financial side of the business, but yeah, D2 doesn't come around cheap.
Nice work Chris and like the runout is zero, pretty amazing. It looks like the marks are the result from hard jaws or the part was dropped. Could the deep indent be filled out by hard silver solder and then machined by CBN insert as you said they are very brittle.
They put the roll on some kind of a rack and heat and the weight of the roll did some damage. Hopefully they will do better next time.
We did some big D2 for our roll form 12x12 inch size I thought those were big. Dang, I bet that was expensive.
I don't ask. It just adds to the stress 😅
@@ChrisMaj Spoken like a true pro..
I was starting to wonder what happened to the kennemetal tool
It worked better than CNMG
Anyone got sacked or not..?!!😉
Nice job 👍
Hi chris, could you show how you have you revolving centre in your chuck?
Maybe this can help czcams.com/video/Jq9GqPdwAjQ/video.html
How do you program the machine? Do you use a CAM, or use something like the Haas Shape Creator, where you tell the machine what you want right there?
Most of the time, I use the fanuc manual guide and G-codes.
How do you like that kennametal FIX8 insert? I've seen ads for it but never used it
Rips through the metal like crazy as long as you get the right insert grade. You do need powerful lathe to get all the benefits of that tool.
Czemu ten wiór jest jakis inny niz zwykle ? szczegolnie przy pierwszym nożu.? Taki materiał twardy ?
D2. Wysokowęglowa, wysokostopowa stal narzędziowa, która ze względu na swą odporność na korozję zaliczana jest do klasy pół-nierdzewnych (semi-stainless). Dzięki stosunkowo wysokiej domieszce wanadu i dużej ilości chromu, jest ona bardzo odporna na ścieranie i tnie agresywnie.
Bravo à celui qui a conçu le programme et celui qui a réalisé l usinage car je me demande bien pourquoi l on trempé cette pièce à 56 hrc?.
Hardening is to slow down the wear, a "soft" roll would be eaten up within no time at all by the material moving over it.
Very hard stuff. What caused the bite marks in the metal?
I bet it was a lifting chain Used by idiots.
They've used some kind of a rack to put the roll on. The heat, weight of the roll and that's what we got
@@ktmturbo5836 Actually it was the rack that they put the roll on.
how is this harden? In a big oven or something?
Yeah. They drop it in the oven, but unfortunately the oven wasn't big enough to put it upright, so they put it on its side and that's where the marks come from. Luckily we were able to save it.
Jakie konsekwencje wobec firmy w która spieprzyła hartowanie?
Parę grzecznych słów o szefa 🤬🤬🤬🤣
Component used for what ?
Steel mill industry
how many hrs of machining?
Too many
Is this lathe CNC or manual? What is the model?
CNC Hankook PROTEC-9NC
Call me crazy...but I love the smell of d2 lol 🤣
I seem to do better job on mills..but I love running lathe parts much more...I'm sure I'm not the only one
Cast iron has to be my favorite 😅
Same machine i am running
Pewnie z 500 kg wiórów - ja tyle robię przez miesiąc 😅
Parę garści się nazbierało 😉
i would of back charged them for a replacement!!
I just work here, but believe me, boss gave them a piece of his mind.
Hi chris how can I contact you
15:07 How in the hell...
The company that we always use their furnace broke down or something so send it out to some other people. Their furnace was too small to put it upright, so they put the roll on its side. High heat, heavy weight and there is the result.
@@ChrisMaj I wouldn't expect to see anything on the concave. It is what it is.
@@ChrisMaj to me the marking looks identical to chain marks
Die Abdrücke von der Eindringprüfung waren ein bisschen zu tief 😂
Ich glaube nicht, dass es das war 🤣
@@ChrisMaj Das glaube ich auch 😂👍
name the of machine?
Hankook PROTEC-9NC
How disappointing be Harding destroyed that roller.
Hopefully they will do better next time, cause we got more coming.
"A taki był ładny, hamerykanski - szkoda" ;-)
(czcams.com/video/ZwUx7L5zDcQ/video.html)
Uratowane to nie taka szkoda. Niech mi ktoś powie że to nie jest jeden z najlepszych polskich filmów
@@ChrisMaj Ja nie powiem : ) No jak nie jest, jak jest, c'nie?! : )
PS: Ale weź to przetłumacz Hamerykańcom i wytłumacz OCB*... No way, no why, no how : ) Znaczy, cały film, bo ta jedna scenka to "da się w kwadrans, może" - ale całość? Ten język, ten humor...
_____
*OCB = "o co biega", czyli "o co chodzi" - to w razie jakby szanowny kolega był ciut nie na bieżąco ;-)
Nice..