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Anonymous Poster

Dish Design

10/12/2010 12:47 PM

how to calculate blank dia from hemispherical dish

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Guru
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#1

Re: Dish Design

10/13/2010 6:14 PM

This may depend on the method of manufacture: spinning, pressing, drawing, hydraulic forming; and whether single piece or multiple pieces.

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#2

Re: Dish Design

10/19/2010 3:16 AM

Dear, Its tricky thing, the theorotical formula is 2 x 3.14/3 x (Ro^3 - Ri^3) x Density, but the truth is that the blanks used normally produce a head approximately
11% higher in weight than that computed with this formula

you can very well use following formula, which is near to accurate:

BD = 1.506 x ID + T for T ≤ 2"

BD = 1.506 x ID + T(T/2")^0.003 for T > 2"

Note UOM, its in inches

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