K Factor Table Sheet Metal

Calculate k factor bend allowance and y factor for sheet metal bending.

K factor table sheet metal.

And now the k factor. Changing the k factor for a sheet metal part. When metal is bent the top section is going to undergo compression and the bottom section will be stretched. As i mentioned in my last post you need to do some tests to calculate these values for a specific sheet.

The k factor is defined as the ratio between the material thickness t and the neutral fibre axis t i e. For each sheet metal part you can either specify a k factor or use the default one. When you select k factor as the bend allowance you can specify a k factor bend table. The value must lie in the range 0 1 since the neutral surface is located.

Now let s see how we can obtain these values for a specific sheet. The problem with a solidworks sheet metal bend table is that it can only control the bend allowance bend deduction or k factor but the thickness and radius is still free to be changed manually. The k factor in sheet metal working is the ratio of the neutral axis to the material thickness. 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 location of the neutral axis varies and. K factor is a ratio that represents the location of the neutral sheet with respect to the thickness of the sheet metal part. In my previous post i talked about k factor bend allowance and bend deduction and what they mean in sheet metal design. To change the k factor for a sheet metal part select the root node in the mechanical browser and type a value in the k factor field.

So if the thickness of the sheet was a distance of t 1 mm and the location of the neutral axis was a distance of t 0 5 mm measured from the inside bend then you would. In sheet metal design the k factor is used to calculate how much sheet metal one needs to leave for the bend in order to achieve particular final dimensions. The k factor depends on many factors including the material the type of bending operation coining bottoming air bending etc the tools etc. The bend allowance bend deduction of the sheet metal specified in k factor by configuring and utilizing a sheet metal gauge table we can speed up the process of selecting the correct wall thickness based on gauge value and selecting the correct bend radius based on available tooling we can also automate the process of selecting the.

In sheet metal the k factor is the ratio of the neutral axis to the material thickness. The solidworks application also comes with a k factor bend table in microsoft excel format. And is typically between 0 3 and 0 5. When a piece of metal is being formed the inner portion of the bend compresses while the outer portion expands see figure 1.