Blank diameter for a torispherical dish?

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SUMMARY

The calculation of the blank diameter for a torispherical dish involves using the outer diameter (OD) of 1332 mm and a constant thickness of 6 mm. The process requires assuming that the plate thickness remains constant and that volume is conserved. To derive the blank diameter, one can take a diametral section through the dish and 'unroll' it back to a flat shape. For critical applications, manufacturers may conduct test pieces or rely on past experience to adjust the blank diameter closer to the required size.

PREREQUISITES
  • Understanding of torispherical dish geometry
  • Knowledge of volume conservation principles
  • Familiarity with metal forming processes such as pressing and spinning
  • Basic algebra for geometric calculations
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  • Research "torispherical dish calculations" for detailed formulas
  • Learn about metal forming techniques like pressing and spinning
  • Explore methods for conducting test pieces in manufacturing
  • Study the impact of thickness on the geometry of formed dishes
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Engineers, manufacturers, and designers involved in the production of torispherical dishes or similar geometries will benefit from this discussion.

lingesh
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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
 
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Using a lot of algebra. Have you tried assuming the plate thickness is constant and that volume is conserved?
 
stedwards said:
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..
 
Google ' torispherical dish calculations '
 
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 .
 
lingesh.
Will you shape the flat circle into a torispherical dish by pressing, by metal spinning or by some other process?
 

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