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THE FEUTEX TOOLKIT

Deep Drawing Blank Geometry

Estimate ideal blank diameter and drawing ratio for a cylindrical cup.

Manufacturing workspace● Runs in your browser
01 Your input
02 Your result
View or copy raw result data
FormulaDblank²=dcup²+4dcup h from base-plus-wall area conservation.
Sources and model references

Worked example

Inputs

Cup mean diameter
50 mm
Cup wall height
30 mm
Uniform sheet thickness
1 mm

Expected results

Area-conserving blank diameter
92.19544457 mm
Drawing ratio
1.843908891
Ideal finished metal volume
6675.884389 mm³

Load the example in the workspace to reproduce these results. Display rounding does not change the underlying calculation.

How to use this tool

  1. Enter every input in the labeled units; use measured or independently specified properties.
  2. Check the stated model assumptions before calculating.
  3. Interpret the output as a model estimate and verify it independently for the intended application.

Try this example

{
  "diameter": 50,
  "height": 30,
  "thickness": 1
}

Accuracy and scope

Neglects corner radii, flange, thickness change and trimming; drawing ratio is not an allowable-process recommendation. Educational engineering estimate only; not structural or safety certification, equipment selection, or operating recommendations.

Is my data uploaded?

This tool runs locally in your browser. Input and output are not sent to a processing server. Copy or download your result before leaving the page.