Enter the original size and the shrinkage rate into the calculator to determine the final size of the casting after shrinkage.
Casting Shrinkage Formula
The following formula is used to calculate the final size of a casting after shrinkage.
FS = OS - (OS * (SR / 100))
Variables:
- FS is the final size of the casting (inches)
- OS is the original size of the casting (inches)
- SR is the shrinkage rate (%)
To calculate the final size of a casting after shrinkage, subtract the product of the original size and the shrinkage rate percentage from the original size.
What is Casting Shrinkage?
Casting shrinkage refers to the reduction in size of a metal casting due to the contraction of the metal as it cools and solidifies. The shrinkage rate is a percentage that represents how much the metal will shrink relative to its original size. This is an important consideration in the design of molds for casting processes to ensure that the final product meets the desired dimensions.
How to Calculate Casting Shrinkage?
The following steps outline how to calculate the final size of a casting after shrinkage.
- First, determine the original size of the casting (OS) in inches.
- Next, determine the shrinkage rate (SR) as a percentage.
- Use the formula FS = OS – (OS * (SR / 100)) to calculate the final size (FS).
- Finally, calculate the final size of the casting after accounting for shrinkage.
- 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.
original size of the casting (OS) = 12 inches
shrinkage rate (SR) = 2%
