Question about metal spinning or rolling a sheetmetal cone

[jackal]

I have a customer that needs 2 of these cones made.
The material is 16 gauge ( .062 thick steel). There aren't any shop around that can roll a cone with a pointed end.
The customer told me it can be flat up to 1/2 on the end for the adjustment screw.
Can someone direct me to metal spinning this?
Possibly over a wooden mandrel?
It is an air inlet control for a boiler.
I asked if it could be made in a brake press( convoluted) with several steps, and he said no.

Thanks


Note:I'm trying to add pictures

 

[jackal]

Album — Postimages

 

[jackal]

In the pics the 'rusty Pac-man' is an old one they cut for a sample .
The white paper one is a model I made from it.
The white model measures 3-5/8" tall when sitting flat on a table.
The largest diameter of the white one is 7-5/8" wide.

Thanks for any help or info.
Not sure if this needs to be made out of something other than mild steel.

 

[Strostkovy]

At one point I made a little hand operated cantilever brake that could get all of the way into corners. But it would take nearly an hour to do enough step bends for it to look round.

 

[Ries]

These guys are pretty much state of the art for cones. Call em and ask. If they cant do it, its probably not do-able for less than too much money.

Exhaust Conical Steel Products, Conicals, Tips, Steel Megaphones, Transitions, Reverse Cones

 

[hvnlymachining]

There is a couple of ways it can be done, but for me didn't work the first try or ten. If you have time to play with it and don't mind working a few ( or a bunch of) hours for free. You can try spinning it on a lathe, or make a top and bottom die and press the part into shape. Or building your own roller. Depending on surface quality desired, There's a few ways to do it but all of them require special tools or dies and a learning curve ranging from hours to days. There are plenty of videos online showing various methods. I have done all three with acceptable results. I accomplished spinning using my lathe compound and a bearing mounted in the tool block, instead of a freehand tool. And I have die formed a number of parts with good success in the hydraulic press. ( I have a dozen such parts waiting to be made) In any case good luck!

 

[jackal]

Thanks for all the info guy. I'll call the specialists first.
Then, I may try one with spinning.
I have an old aluminum piston from a hydraulic cylinder.
Might use a bearing to roll that.
I'll update on my decision.
About other ideas are welcome.

 

[EmGo]

About other ideas are welcome.

For two, if it is permissible, I'd just cut them out of sheet, roll them up and have a good welder run a seam.