Move the sheet around inside the brake as needed to align the bend point with the internal edge of the clamp bar the side facing you.
2mm aluminium sheet bending.
Create a long fracture line then progressively bend the sheet from one end to to the other.
Place the fracture line over the edge of a table and bend the overhang slightly downwards.
To keep it simple i also use a 2 mm inside radius.
The finer the marks the more accurate your bends and cuts will be.
Let s say i have a 2 mm thick sheet and i want to bend it.
With a 2mm line you could be out of square by 2mm or the hole you just drilled is off 2mm.
Adjust the edge of your sheet to set your desired bend line.
Use the minimum bend dimension values in the charts below for your minimum closeness of cutout to a bend.
This doesn t sound like a lot but when you are drilling four holes to mate up to another piece its important.
After a few wiggles the sheet will fracture along the cut line leaving a clean break as shown in the above photos.
The bend radius you select may not be available if the geometry of the part will not allow us to bend with the specific tooling required to achieve that radius.
You can also use a craft knife to mark soft metals such as aluminium.
The required die width is 12 mm and tonnage per meter is 22.
With care and patience full size sheets of aluminium can be cut using this method.
The section of the sheet beneath the clamp bar will fold up and around this edge to produce the bend.
How to bend sheet metal without a brake in 4 different methods with minimal or homemade tools.
Flip the sheet over and repeat.