What is the K-factor value?

Question

Accepted Answer

The K factor is a value used in sheet metal design to determine the amount of springback that occurs during bending.

The K factor is a ratio that relates the neutral axis to the material thickness.
It is used to calculate the bend allowance and bend deduction in sheet metal bending operations.
A higher K factor indicates more springback, while a lower K factor indicates less springback.
Different materials and bending processes have different K factor values.
For example, the K factor for mild steel is typically around 0.33, while for stainless steel it can be around 0.5.

Accepted Answer

The K-factor is defined mathematically as t/Mt, where t is the neutral axis location and Mt is the material thickness. Because of the specific properties of any given metal, there is no easy way to calculate that value perfectly. The K-factor is usually somewhere between 0.3 and 0.5.

What is the K-factor value?

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