These dimensions may seem helpful but after your manufacturer makes bend deductions based on their capabilities and other bending factors your dimensions will become unusable.
Bent sheet metal drawing.
As mentioned the punch and die setup is somewhat similar to a sheet metal cutting operation such as punching or blanking.
When you create a drawing of your sheet metal part a flat pattern is automatically created.
Sheet metal drafting sheet metal drafting is merely the application of the principles of ordinary mechanical drawing to objects which for the purposes of drawing lack thickness.
By this is meant that the materials dealt with are usually in the form.
Drawings of sheet metal parts can also contain views of the bent sheet metal part.
A customer had recently called in looking for a way to show his bend lines on the drawing of his sheet metal parts and while some people may say the answer is simple there are several ways to get the bend lines to show or not show in your drawing.
Deep drawing practice.
Deep drawing is a sheet metal forming process that involves complex material flow and force distributions.
The diagram shows one such mechanism.
Cutting and forming thin sheets of metal usually performed as cold working sheet metal 0 4 1 64 to 6 mm 1 4in thick plate stock 6 mm thick advantage high strength good dimensional accuracy good surface finish economical mass production low cost.
Refer to the chart for values for folder as well as various press brake tooling combinations.
Solidworks sheet metal drawing tutorial bend line flat pattern unfolded bend table punch table.
Geometry of tooling imposes a minimum bend dimension.
Use the minimum bend dimension values in the charts below for your minimum closeness of cutout to a bend.
You can create dxf files of sheet metal flat patterns without creating a drawing.