Minimum Blank Size Calculator

Formula

To calculate the Minimum Blank Size (\(MBS\)):

\[ MBS = (D + 2 \cdot M) \cdot S \]

Where:

\(MBS\) is the minimum blank size (mm)
\(D\) is the diameter of the finished part (mm)
\(M\) is the material thickness (mm)
\(S\) is the safety factor (unitless)

What is a Minimum Blank Size?

A Minimum Blank Size refers to the smallest size of a sheet or piece of material that can be used in a manufacturing process, such as stamping or cutting, to create a specific part or product. This size is determined by the dimensions of the final product, the type of material being used, and the specific manufacturing process. It is important to calculate the minimum blank size accurately to minimize waste and reduce production costs.

Example Calculation 1

Let's assume the following values:

Diameter of Finished Part (\(D\)) = 50 mm
Material Thickness (\(M\)) = 2 mm
Safety Factor (\(S\)) = 1.5

Using the formula:

\[ MBS = (50 + 2 \cdot 2) \cdot 1.5 = 81 \]

The Minimum Blank Size is 81 mm.

Example Calculation 2

Let's assume the following values:

Diameter of Finished Part (\(D\)) = 100 mm
Material Thickness (\(M\)) = 3 mm
Safety Factor (\(S\)) = 2

Using the formula:

\[ MBS = (100 + 2 \cdot 3) \cdot 2 = 206 \]

The Minimum Blank Size is 206 mm.