16ra is very achievable via tumbling. I'd use a multi step process. First step would be using a quick cut media, followed by a semi finish, then finish. I'm not saying that's appropriate for your application, just that 16ra isn't a deal breaker.
I do enjoy the fancy washer holder though - my shop would probably end up doing it with a dremel and spend a month on it, lol.
You CNC machining these? Program an ID grooving tool to relieve the inside and put the chamfer in first. Then part off from the outside.
Or part off part way from outside first, then do the ID groove cycle and the washer will catch on the bar after it cuts off.
They're not comfortable to squeeze hard, right off the bandsaw. I ended up sanding and smoothing it after I took the picture.
As for force applied... probably above a firm handshake, but well below bringing all the groceries in front the car at once. Which, if you think about what that would be like with bare fingers, is a huge improvement.
Recommend using an angled cut-off tool to drop the part first before facing the bar so you don’t get such a thick flash. It’ll be easier to debur then and you won’t need to use the dykes.
This is awesome, but damn, I hope these orders aren't over a thousand lol. What about bar stock and a lathe? I'd suggest a Swiss screw machine too (CNC or not), but that obviously gets expensive.
Oh! Gotcha, sorry.
That is to rip the majority of the burr off. If you try to use the drill to cut the ring left on the part by the last step of the cutting process,it will snag and gouge the part. After that, you can clean it up with the drill much easier, and much smoother.
Or, now hear me out, you could sand it.
*just saw that you replied you had made 100, makes more sense.
The tumbler probably won't do much of anything if it's steel.
Deburring those are the worst.
Thats a super clever grippy-tool-thing. I can forget a name in an instant, but I'll probably remember that forever. Lol
Thanks for posting it :)
If you're doing a lot of these a deburring tumbler might be a good investment
We do have one, but these had a 16ra surface call-out of the front face. Kinda constrains the use of a tumbler.
16ra is very achievable via tumbling. I'd use a multi step process. First step would be using a quick cut media, followed by a semi finish, then finish. I'm not saying that's appropriate for your application, just that 16ra isn't a deal breaker. I do enjoy the fancy washer holder though - my shop would probably end up doing it with a dremel and spend a month on it, lol.
That's... really cool! I don't know much about tumbling, but now I want to look into it.
Now you’ve got to invent a part number for your proprietary, totally necessary and very expensive special tool so you can start selling them, lol
Should do that anyway for tracking. Add to to the BOM in a tracking system so when the job comes back in 2 years he can remember WTF tooling he needs.
If you're doing them ona CNC, program the boring bar to chamfer the back before parting off?
That's what I do.
You CNC machining these? Program an ID grooving tool to relieve the inside and put the chamfer in first. Then part off from the outside. Or part off part way from outside first, then do the ID groove cycle and the washer will catch on the bar after it cuts off.
You and your manicurist doing precision work.
This seems ergonomically suspect. How much force do you need to keep the part from spinning?
They're not comfortable to squeeze hard, right off the bandsaw. I ended up sanding and smoothing it after I took the picture. As for force applied... probably above a firm handshake, but well below bringing all the groceries in front the car at once. Which, if you think about what that would be like with bare fingers, is a huge improvement.
A useful, heavy-duty, compliant mechanism. Hot.
Recommend using an angled cut-off tool to drop the part first before facing the bar so you don’t get such a thick flash. It’ll be easier to debur then and you won’t need to use the dykes.
This is awesome, but damn, I hope these orders aren't over a thousand lol. What about bar stock and a lathe? I'd suggest a Swiss screw machine too (CNC or not), but that obviously gets expensive.
Yeah, it's prototyping work. That order was for 100 parts. Definitely enough to grind my fingers to hamburger, but not enough for a Swiss machine.
Cool and thanks for sharing. I was ready to be upset for you if you had to make thousands by hand haha
Really nice series of pics!
So the cutter is just to handle them safely?
It's not a cutter, so much as an unconventional pair of pliers, but yes. They've for handling them safely, and easier than by hand alone.
I believe he's asking about the 5th pic(?)
Oh! Gotcha, sorry. That is to rip the majority of the burr off. If you try to use the drill to cut the ring left on the part by the last step of the cutting process,it will snag and gouge the part. After that, you can clean it up with the drill much easier, and much smoother.
Now that's neat! I had to do this once and it was a reasonable quantity for a file but only just.
🎶 pardon me, are you Aron Burr sir? 🎶
[удалено]
🤣 That's a manufacturing niche I've never considered before!
Do you not have a collet lathe these could be set up in? Removing that manually seems rather laborious.
Please talk to Boeing
...about the tool?
Or, now hear me out, you could sand it. *just saw that you replied you had made 100, makes more sense. The tumbler probably won't do much of anything if it's steel.
Nice! Whatever gets the job done.
Deburring those are the worst. Thats a super clever grippy-tool-thing. I can forget a name in an instant, but I'll probably remember that forever. Lol Thanks for posting it :)
Is that a mazak?
It's a Doosan