Then create a pilot hole within the penciled circle.
How to cut aluminum sheet metal.
This weakens the aluminium and creates a fracture line.
With the aid of a straight edge and a sharp knife score both sides of the aluminium sheet.
Industrial cutting water jet.
To cut the sheets of metal rathe.
Step 5 optional if your project requires cutting a hole in the center of sheet metal draw it on the metal as you would any other cut line.
Modern lasers will be effective.
An air powered sheet metal nibbler or a nibbler head attached to a power drill can cut through galvanized corrugated aluminum sheet as well as flat sheet up to 16 gauge.
Place the fracture line over the edge of a table and bend the overhang slightly downwards.
Larger presses can be loaded with.
Sheet aluminium can be cut without the need for a guillotine or tin snips which tend to deform the metal.