top of page

What is K Factor and How to find it ?

Metal Cut is your go-to source for K Factor calculations for sheet metal bending. Our team of experts are dedicated to providing the highest quality of service and accuracy when it comes to K Factor calculations. No matter the size of the project, we guarantee the best results and will ensure that you get the most out of your sheet metal bending. Our commitment to quality and precision will provide you with the peace of mind that you are getting the most accurate K Factor calculations.

The K factor is an important parameter used in sheet metal fabrication to calculate the flat pattern length of a sheet metal part. The K factor represents the ratio of the neutral axis to the material thickness and is used to calculate the bend allowance.

To find the K factor in sheet metal, you can use the following steps:

  1. Determine the material type and thickness of the sheet metal being used.

  2. Determine the inside bend radius of the bend you want to make.

  3. Use a K-factor chart or formula to find the K factor value for the material type and thickness, and the inside bend radius. The K-factor value is often provided by the manufacturer of the sheet metal or can be found in reference tables.

  4. Apply the K-factor value in the bend allowance formula to calculate the flat pattern length of the sheet metal part.

Here is the formula for calculating the bend allowance with the K-factor:

Bend Allowance = (π/180) x Bend Angle x (Inside Bend Radius + K-Factor x Material Thickness)

Note that the value of K-factor may vary depending on the type of sheet metal, the tooling being used, and the process of bending. Therefore, it is always a good practice to consult the manufacturer's specifications or reference tables to ensure accurate calculations.

bottom of page