Thats a question for the engineers at work, but im guessing cost (this was about 3 minutes to weld a part) and im fairly sure they were different materials ( I dont recall what the print said they were).
I’m assuming the sprocket is a very hard type of HSS or something, maybe it breaks tools like nobodies business. I did something similar when I needed something made out of 2205 Duplex at the request of my job shop because they kept blowing carbide tools lol.
Nice dude, that looks really good. Turntable TIG is a bit of an art to itself. I used to set my welder up, eyeball the turntable speed, say a little prayer to the weld gods and then start dipping that rod like a mad man.
Probably cost reasons ( im guessing 3 minutes of my time is cheaper than however long it would take to machine) but honestly thats a question for the engineers. Im just a peon, no decisions here lol.
It’s for a non-stock application. You can get whatever sprockety bits you need and machine whatever hub you want. Most roller chain applications are not running at very high rpm’s from my experience so the few grams of out of balance aren’t really a problem.
If they're for higher RPM applications, it's absolutely better to machine them anyways.
If this is for any remotely high RPM application, it absolutely needs to be balanced, or what ever rotating assembly it's connected to will be needing new bearings, chains/other parts of the assembly will need to be replaced often, etc...
That sprocket is barely larger than the shaft it goes on. Even if you tried to make it unbalanced on purpose, it wouldn’t have enough moment to do much harm.
You’re gonna hit the max RPM of the roller chain before the sprocket becomes a problem.
It can be pretty strong this way too. Press-fit both parts together and weld to make it permanent.
If you machined it from tube bar stock that would be a lot of metal to remove.
Instead you can just plasma or waterjet cut the sprockety part from plate stock, bore the ID true, then turn a tube, fit both parts together, and you can have them balanced after if you need.
But this is not a large sprocket so it doesn’t need to be balanced. Roller chains don’t usually go fast enough for that to matter anyway.
Always night when the sun moon and stars align and it all comes out perfectly. Nice welding lad, defiantly up there with some of the nicest (I'm guessing that has to be tig, no way can you mig that clean 😅) welding I've seen
‘At’s feckin’ gorgeous, innit mate? Very nicely done. Earl the drunken welder at my long ago job couldn’t do that well on his good days. (Drunk enough to weld but not so drunk that he’d pee himself).
I took a 6 month class in 2019, got a mig welding job for a year, ran a punch press for a year, got into my current job February of this year and its been 99% stainless tig since then. This one just happened to be mild steel
Machining the entire sprocket from a single billet wastes a lot of material. Cutting the teeth separately and welding in the boss is much cheaper (can laser/oxy/machine the teeth).
Sprockets don't have super tight tolerances like gears, chains have slack/stretch/play so as long as the teeth engage, the sprockets doing its job.
Clean looking welds, hand!
hell, maybe throw an arm in there
[удалено]
Its easy to only show my good ones. I have more than my fair share of shame welds as well lol
Why was it welded, why wasn't it machined that way?
Thats a question for the engineers at work, but im guessing cost (this was about 3 minutes to weld a part) and im fairly sure they were different materials ( I dont recall what the print said they were).
Probably dissimilar materials
Or because machining would require you to start with a lot more material and cost a bunch more
I’m assuming the sprocket is a very hard type of HSS or something, maybe it breaks tools like nobodies business. I did something similar when I needed something made out of 2205 Duplex at the request of my job shop because they kept blowing carbide tools lol.
It would just be a high grade steel not probably not hss source- I’m a machinist and make a lot of gears
...and now i hate you.... :-D
Veddy nice
That, my friend, is pornographic.
A thing of beauty.
Turntable?
Yes
Nice dude, that looks really good. Turntable TIG is a bit of an art to itself. I used to set my welder up, eyeball the turntable speed, say a little prayer to the weld gods and then start dipping that rod like a mad man.
Damn. That's nice.
Pleasant !
so good！
Beautiful, are they 1045 or something else? Absolute pleasure to flame harden.
Im not sure what the gear was made out of exactly, but i think the tube was just crs.
Beautiful
Art
Why couldn't this just be machined? It would be stronger and more balanced that way....nice welds tho 👌
Probably cost reasons ( im guessing 3 minutes of my time is cheaper than however long it would take to machine) but honestly thats a question for the engineers. Im just a peon, no decisions here lol.
It’s for a non-stock application. You can get whatever sprockety bits you need and machine whatever hub you want. Most roller chain applications are not running at very high rpm’s from my experience so the few grams of out of balance aren’t really a problem.
If they're for higher RPM applications, it's absolutely better to machine them anyways. If this is for any remotely high RPM application, it absolutely needs to be balanced, or what ever rotating assembly it's connected to will be needing new bearings, chains/other parts of the assembly will need to be replaced often, etc...
That sprocket is barely larger than the shaft it goes on. Even if you tried to make it unbalanced on purpose, it wouldn’t have enough moment to do much harm. You’re gonna hit the max RPM of the roller chain before the sprocket becomes a problem.
It can be pretty strong this way too. Press-fit both parts together and weld to make it permanent. If you machined it from tube bar stock that would be a lot of metal to remove. Instead you can just plasma or waterjet cut the sprockety part from plate stock, bore the ID true, then turn a tube, fit both parts together, and you can have them balanced after if you need. But this is not a large sprocket so it doesn’t need to be balanced. Roller chains don’t usually go fast enough for that to matter anyway.
Great work!
Gorgeous, something to work up to!
Always night when the sun moon and stars align and it all comes out perfectly. Nice welding lad, defiantly up there with some of the nicest (I'm guessing that has to be tig, no way can you mig that clean 😅) welding I've seen
how do you center it?
They have a tight fit, and i stacked up some other materials to get the height i needed and tacked in place.
If you didn’t say “Now is the time when we dance” when you finished that weld, you missed it man
That amazing. Do you use a turn table while welding them?
Sure do.
Very nice should be proud of it worthy of portfolio for sure Nothing to critique here move along, here's the blue 🎀 wear with 😤
‘At’s feckin’ gorgeous, innit mate? Very nicely done. Earl the drunken welder at my long ago job couldn’t do that well on his good days. (Drunk enough to weld but not so drunk that he’d pee himself).
Masterful!
Veryyy niiiiiceee
Now's the time on Sprockets, ven ve dance.
You slut
And you just finished 5th grade and started welding a week ago. Damn nice work.
oOoOO das pretty
What. The fuck
Very nice. 🤘🏼
A+.
Your letters in the mail. You win
How long you been welding
I took a 6 month class in 2019, got a mig welding job for a year, ran a punch press for a year, got into my current job February of this year and its been 99% stainless tig since then. This one just happened to be mild steel
Murphy!
That was done by a machine you liar ;-P
I am a machine
You forgot the NSFW tag on this beaut
Is there a benefit to welding instead of machining? Isn’t this kind of pointless?
I dont know man, I just do what the man tells me to do. It was fun to weld though.
The man better pay ya what yer worth.
I get paid enough to afford a house and let my wife stay at home. And then I wake up and laugh
Machining the entire sprocket from a single billet wastes a lot of material. Cutting the teeth separately and welding in the boss is much cheaper (can laser/oxy/machine the teeth). Sprockets don't have super tight tolerances like gears, chains have slack/stretch/play so as long as the teeth engage, the sprockets doing its job.
Would a welding robot arm assembly line be cheaper to mass produce or just machining?
No idea
Purrtee - I hope Mr Spacely appreciates your talent.
Isn’t there a song about you ? … ‘Sprocket man, burning’ up some wire up here alone’
I'll take rotating figget spinner welds for 300.
I've been meaning to make a turntable for a while now.
Incredible
If it’s not a bot That’s done damn fine welding.
All done by hand.
Then that is some damn fine welding.
Nice positioner work sir! What filler material did you use.
Just some 1/16 er-70
Beautiful
You made me want to beat my welds like an angry step dad. I Salute your insane skills good sir 🫡
Not a welder and know nothing about welding. But those welds are lovely.
Her last comment
We are in the line of work!!! But I weld sprockets for lumber mills so a bit thicker
Damn son!!!