# Y Factor Calculator

## What is Y factor?

The Y-factor represents the part constant used in the formula to calculate the unfolded length of a sheet metal part bending with a specific radius and angle in the design.

The Y-factor is defined by the position of the neutral bending line (in relation to the thickness) of the sheet metal part.

The position of the neutral bending line depends on the type of material of the sheet metal used in the part.

The numerical reference range is from 0 to 1.

The numerical reference for the Y-factor can be negative; the smaller the value, the softer the material.

The length of the neutral bending line is equal to the unfolded length.

The Y-factor is calculated as: Y-factor = K-factor * (Π/2).

The default value of the Y-factor is 0.50.

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