Bend Table Sheet Metal

To use the tables below.

Bend table sheet metal.

Each row in a bend table specifies a bend angle. A section view of a typical punch and die set used to create sheet metal bends. Understanding the bend allowance and consequently the bend deduction of a part is a crucial first step to understanding how sheet metal parts are fabricated. To create your own bend table copy and edit this bend table with any text editor.

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. Bend tables created as a text file support the following. The bend radius of a sheet metal design will be based on the wall thickness of the part and the tooling that is available in house. Refer to the chart for values for folder as well as various press brake tooling combinations.

The second important number when creating sheet metal designs is the bend radius value. Since gauge tables were introduced all the parameters can be controlled base on the drop down selection which makes life much easier. Refer to table s for your choice of material. Use the minimum bend dimension values in the charts below for your minimum closeness of cutout to a bend.

Bend allowance mild sheet steel 90 degree bend allowance bend allowance chart example flat size 2 2 095 3 905. Geometry of tooling imposes a minimum bend dimension. Each column specifies a bend radius. You can generate flat patterns by unfolding sheet metal features using a uniformly applied.

Understanding the bend deduction and consequently the bend allowance of a part is a crucial first step to understanding how sheet metal parts are fabricated. When unfolding if a bend radius or angle does not correspond to a specific entry a process interpolates between adjacent values in the table. It is possible to choose other bends if you require but additional lead time and tooling charges may apply. A sample bend table for sheet metal operations is provided in install dir lang english sheetmetal bend tables sample btl.

We have a metal sheet of 3 m m thickness in iron with a hardness of 42 48kg mm2 if we go to the top of the table we see the thicknesses in brown we look at the 3 thickness of the sheet and we go down to the blue box we see a value of 240 this is in kn mm2 and if we take a 0 it will be in ton. When the sheet metal is put through the process of bending the metal around the bend is deformed and stretched. All bend table types bend deduction bend allowance and k factor. Exemple 1 for metal sheet bending tables.

Sheet metal bend radius. The diagram shows one such mechanism. 0 060 crs 2 000 2 000 r0 031 aluminum 90 deg.