Yet another annular -- the Quasi-Argus

[Al Belli]

Hi Larry,

The part appears to be drawn as a shallow cup, and then closed with a forming die. This gives a torus with a seam on the inside that has to be welded after the part is cut. If you chuck the part in a lathe ( holding on the I.D. ) you can use a parting tool on the O.D. to get two half toroids. The catalog ( on page 12 ) states that the inner seam must be welded after cutting.

Al Belli

[larry cottrill]

Hi Larry,

The part appears to be drawn as a shallow cup, and then closed with a forming die. This gives a torus with a seam on the inside that has to be welded after the part is cut. If you chuck the part in a lathe ( holding on the I.D. ) you can use a parting tool on the O.D. to get two half toroids. The catalog ( on page 12 ) states that the inner seam must be welded after cutting.

Nuts! Of course, I would guess wrong ;-)

Thanks, Al!

L Cottrill

[El-Kablooey]

I wish those were aluminum, would make a great toroid for a Tesla coil.

[Dave]

El-Kablooey

I found this on the web:

"Stainless vs aluminum conductivity makes little difference in spheres/toroids (unless you're discharging kA-rms arcs, few do). Only when it is drawn into long thin wires does it make a noticible difference. Machining stainless vs aluminum is a whole other story. Why most toploads are aluminum. "

This and more info can be found here:
http://www.pupman.com/listarchives/2006 ... 00045.html

I have no idea how accurate it is, but thought you might like to know.

Dave