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- เผยแพร่เมื่อ 25 มี.ค. 2021
- A spiral bevel gear is a bevel gear with helical teeth. Spiral bevel gears are designed for applications that require high speed and high torque power.
8620 alloy steel is an ideal material for an array of applications. It is often used in the production of medium strength machine parts, including gears, fasteners, and forged camshafts.
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It is amazing to see this man using the same type micrometers I used on those old manual machines in my heyday. The more things change the more they stay the same. Chris Maj is a metal sculptor.
There's some clever workholding ideas here!
I love machining!
You can take a relatively inexpensive lump of steel and turn it into something beautiful and valuable!
Manufacturing is the wealth building backbone of any nation that supports their factories and machinists!
Wow!
Another CNC masterpiece! :)
Nice work Chris, thank you for sharing it with us.
and sharing the details as well.
I'm always pausing your vid when information on inserts, sizes, tolerances, etc are displayed.
Bevels are beautiful!
Superb piece of turning and well filmed mate thanks for sharing 👍
Glad you enjoyed it
I used to lock that OD mic at the number I want, slide it on the OD and feel it. Adjust if too tight or loose. It’s all about feelings. Especially working on a VTL where the part facing up.
Otra pieza lograda.Buen trabajo Cris.
Gracias. No sé cuánto tiempo podré estar al día con esa carga semanal de TH-cam. Es más trabajo de lo que pensaba.
I have my own personal set of Starrett Tubular Micrometers 1-1/2 inch to 36 inches. They are great to have at my machine and it was a long way to the tool crib.
Awesome work👏👏👏
Thank you! Cheers!
Thanks for sharing!
You bet!
Excellent work
Thanks for the visit
good job!!
You do very nice work.
Thanks, I like to think so.
Finally see someone using a micrometer properly. So many people use the ratchet and just crank away on it without feeling for the high spot.
Using the ratchet isn't wrong. Just have to use it properly.
@@justinl.3587 The ratchet is for people who don’t know how to measure. When you’re measuring something, you have to feel it so you know you’re measuring it right, you can’t use a ratchet and feel the workpiece. There are probably times when using a ratchet is acceptable, but I haven’t found one yet. You see people transfer a measurement from a gauge and they just ratchet away, they could be out by 20-30 microns. I never use the ratchet, never have. I think using the ratchet might get you within 03, maybe 02, but not using the ratchet will get you within 01 or better every time.
@@madaxe79 The ratchet ensures, that diffrent persons can come to the same measurement. it removes variables, which come from diffrent people using the same measurement tool slightly diffrent. You gotta feel for trhe high spot as well, but if you do this using the ratchet, two diffrent people will always come to the same measurement, given that they both know how to use it properly
I have been a turner for 49 years and never used a ratchet.
@@geoffgreenhalgh3553 Geoff just because you did something for X amount of years doesn't mean you did it correctly for all those years.
Всё сделал красиво) Сиди и смотри , как другой человек работает , ведь на это можно смотреть вечно :D
9:21 is fantastic!
Awesome until one of those chips lands on you lol
Very nice video thanks for sharing.
Thanks for visiting
Good job
This is only cutting out a blank for the purpose of making a spiral bevel gear. Great work. Still, I'm off to find where you actually do make the spiral cuts......
We don't have the equipment to do that. We send them out.
I’m in my 3 year of machining would be great if you could come up with a video related to speeds and feeds or calculations!
Ooo man believe me, you don't want any advice on feeds/speeds from me. I'm that guy that usually goes by feel/ear/sound/shape of the chips.
There is a sea of information , if you want to research . Other this and the many many rule of thumbs (which differ from man to man) , you can find relevant info in tool catalogs , online catalogues , also usually on the box of the inserts . 1 tip if you're working with a small , like half inch and under , don't go by the recommended depths and feed , or at least start on the low side. (a CCMT060208 might take a 2mm per side cut , with a 0.25mm feed per rev , but a 10mm boring bar surely will not especially in steel and harder metals)
Don’t understand what you need to know it’s basic simple math...all material and carbide has a number you transpose into the formula....to get your feeds and speeds then you fine tune..on the machine the cutting formula are freely available and set in stone...simple rule of thumb is the colour of the chip straw colour...which means the heat is in the chip and not the tool and it should be chip not a string.. Simple
Download FSWizard
Feeds and apeeds are going to differ via material and batches. The best thing to do is experiment. Hands on is your best instructor. I needed to edit most of my programs after they were written and loaded to the server. Had a couple hundred of them. I remember one casting would be so different batch to batch that my rough cuts could vary in speed by as much as 400rpm, and we won't even talk about the feed rates. 😂😂
Also, insert choice will affect how fast you can cut, and how long the insert will last. One tip, I always tried to only leave .010 for my finish cuts if possible. Inserts last much longer, can run the cut faster, more consistent and the finish tended to be better (for me).
Loved running a cnc. Sure do miss it.
Always hated those interrupted cuts. My machine was a okuma lu45 with two turrents, about the same size chuck.
Awwww beutifull work!
Thank you!
Good job frend
Beauty.
Back in 1968 -1985 I made spade drills for Waukesha cutting tools.
Wonder if the part is to be ground, teeth and all, after heat treatment?
Very cool video to watch. A question from someone who has never touched a lathe like this. It sounded like the speed was changing as the tool moved in toward the center. Is that to keep the Feed rate correct based on the smaller diameter which changes the angular speed?
Yeah, it's called Constant surface speed.
Awesome, we will see gear machining?
No, unfortunately we don't have the equipment to do that.
That’s a huge micrometer !
A macrometer?
Actually checking single handedly is tough since u have to bend towards the Chuck and that micrometre also weights little . I feel personal tough for me
I thought i was the only shop with milky coolant lol. Good job
Haha, no time to change it. But in all seriousness I don't know what's with the coolant that we use. It turns into that milky color within a week.
@@ChrisMaj need a oil skimmer. Put one on a machine it works great
@@mattcaesar5781 I do have one on my VTL and the coolant still looks like crap.
@@ChrisMaj damn. Oh well still works
@@mattcaesar5781 As long as it doesn't smell, I'm fine with it.
*9:21* *_LucasFilm_*_ wants to know your location._ 🎥🎬 💥🔫
It does kind of sound like STAR WARS.
0:39 - Is the drill power-feed?
3:19 - I that glowing red where the chip is being generated? Even with the coolant on?
8:12 - Dunno where you're located, but with mics that big, I'll bet your shop is kept at pretty constant temps.
Do you hob the gear?
More pleas whith rhoughing
More whith this rhoughing insert! How mutch doc can cutt 10 MM ore more?
Ich frage mich wie der Dreher am Ende den Planlauf hinbekommen hat ❣
At the 12" o'clock position in reference to the part on the chuck, is that a porosity ? it looks enormous @2:50
It looked like hammer marks.
I see some Korloy inserts , am i right ?
You're not wrong.
What machine is used for final gear cutting?
Spiral bevel gear hobbing machine or 5axis CNC?
If you do it the classical way with rotary tables on universal table, please make video about it.
Unfortunately we don't have any equipment for gear cutting.
Шестерня. Делал я такие в Польше))) только размером больше
Fanuc controll ?
Yeah
The cutting blade must be expensive :-)
why does the machine sound like it is speading up when the part gets smaller
Feeds are in surface feet so feed and finish stays the same as the part gets bigger or smaller
When you face a part, if you use the constant cutting speed function (instead of the constant rotation, ore fixed rotation one) the control adapts the revs per minute of the spindle according to the position in x of the cutting tool. The smaller the diameter turned, the faster the spindle turns and vice versa. When the diameter is large, it helps you to save a lot of time.
It's called constant surface speed. The bigger the diameter the slower the rpm and vice versa.
@@ParkerLouisDE CSS G96 and G97. You also have to program max speed in so you don't get too many revs.
bei uns in Deutschland hieß es konstante Schnittgeschwindigkeit,
und so heißt es heut wahrscheinlich auch noch, ka. ich bin raus seit dem 8.11.06 durch eine Hirnblutung, so ist das Leben, aber danke für die Videos ;-p
Does anyone know if Mr Wilks is okay?
This was posted 5 days ago under his last video " A guy who works with Dave responded to a comment I left on an earlier video. I asked about Dave and he said he was dismissed from his job about 3 weeks ago. He didn't say why but he did say that he will be missed".
New inserts?
Still Kennametal 👍
Where is your company located?
US
Can't see where that 2 Chuck idea is so hot. Deforms 3 jaw body. Too much overhang. Springy.
Never had a problem with it.
At least with cutting edge engineering we get to know what he is doing and why.
Well, this is not a learning channel. It's more of a showoff my work. Most of my work is for steel mill industry and they don't just let people in cause I want to record where this part goes.
Can someone tell me what kind of boring tool holder is it ?? I am looking for one of those
0:54 or 9:07 ?
@@ChrisMaj 0:54
@@vinaykumar-ew8hh S24U-MCLNR-4
@@ChrisMaj it is not boring tool holder ,its tool
@@vinaykumar-ew8hh it came with the machine
Hi Chris! Amazing job! Could you show us how you obtained/calculated the dimensions for this bevel gear?
The drawing was provided by the costumer.
представляю если вырвет деталь )
참...일어렵게한다.
간단하게 2번에 끝내야지
Зачем было идеально вытачивать первую сторону и под конус, если он её все равно срезал в конце
Эта деталь имеет углы с обеих сторон и не было возможности установить ее в патрон. На лице было достаточно приклада, поэтому я повернул эту маленькую ступеньку, чтобы было за что держаться.
That is not turning for the timid😬
Not that complicated.
@@ChrisMaj Well, you make it look easy! Because of the shape of this part, it looked like there wasn't very much material to chuck up on. So from a workholding perspective, it seems little things could get dicey if you're not careful when reseating and tightening the part.
Aha
The title is missleading. Should be 'Bevel gear BLANK machining.' Mothing more...
Showww .
Excellent work
Many thanks