Blank diameter for a torispherical dish?

[lingesh]

Hi,
How can i calculate the blank dia required for a torispherical dish?Please share any formulas if you have..

OD=1332 MM
THICKNESS 6MM

 

[stedwards]

Using a lot of algebra. Have you tried assuming the plate thickness is constant and that volume is conserved?

 

[lingesh]

Using a lot of algebra. Have you tried assuming the plate thickness is constant and that volume is conserved?

yes, thickness is constant and volume is conserved..

 

[Baluncore]

Google ' torispherical dish calculations '

 

[Nidum]

It's not actually all that difficult .

Take a diametral section through the dish and 'unroll' it back to flat .

If dish is made by any normal process which preserves constant and original thickness then diameter of blank as derived above will be on safe side of minimum needed .

In production or for one off's that were critical a manufacturer would either do a test piece or use experience of many previous jobs and trim basic blank diameter to get a little nearer to exact size needed .

 

[Baluncore]

lingesh.
Will you shape the flat circle into a torispherical dish by pressing, by metal spinning or by some other process?