Sheet Metal K Factor Formula

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Sheet metal k factor formula.

K factor in sheet metal bending is a constant used to calculate sheet metal flat length or flat pattern. Calculate k factor bend allowance and y factor for sheet metal bending. Subtract twice the leg length from the initial length to determine the bend allowance. Cad tools use k factor to calculate sheet metal blank.

K factor a constant determined by dividing the thickness of the sheet by the location of the neutral axis which is the part of sheet metal that does not change length. The part of the material that bends. Mathematically k factor value is equal to the ratio of position of neutral axis and sheet thickness. You can use this k factor calculator to calculate k factor using reverse engineering method.

As a result overall sheet length increases. Best way to calculate k factor in sheet metal is by reverse engineering. The k factor is the most important and elusive variable of bending because it varies both as a function of the material and according to parameters such as angle and tooling. In this article we will discuss sheetmetal bend deduction bend allowance k factor y factor and sheet metal flat pattern calculations.

This change in sheet length depends on the position of neutral axis or k factor. The k factor is defined as the ratio between the material thickness t and the neutral fibre axis t i e. For our example it comes to.