Calculate extrusion ratio, initial area, or final area from cross-sectional measurements in sq in, sq ft, sq m, or sq yd units when one value is missing.
Customize This Calculator
Build your own version. Describe what you want changed, added, or compared.
Related Calculators
- Conduit Shrink Calculator
- Mold Shrinkage Calculator
- Steel Shrinkage Calculator
- UHMW Weight Calculator
- All Construction Calculators
Extrusion Ratio Formula
The following formula is used to calculate the extrusion ratio:
Variables:
- ER is the extrusion ratio
- A₀ is the initial cross-sectional area (square inches)
- A₁ is the final cross-sectional area (square inches)
To calculate the extrusion ratio, divide the initial cross-sectional area by the final cross-sectional area.
What is an Extrusion Ratio?
The extrusion ratio is a dimensionless number that represents the amount of deformation a material undergoes during the extrusion process. It is calculated by dividing the initial cross-sectional area of the billet by the final cross-sectional area after extrusion. A higher extrusion ratio indicates a greater degree of deformation and can affect the mechanical properties of the extruded product.
How to Calculate Extrusion Ratio?
The following steps outline how to calculate the Extrusion Ratio.
- First, determine the initial cross-sectional area (A₀) in square inches.
- Next, determine the final cross-sectional area (A₁) in square inches.
- Use the formula ER = A₀ / A₁ to calculate the Extrusion Ratio (ER).
- After inserting the variables and calculating the result, check your answer with the calculator above.
Example Problem:
Use the following variables as an example problem to test your knowledge.
Initial cross-sectional area (A₀) = 4 square inches
Final cross-sectional area (A₁) = 1 square inch
