With the aid of a straight edge and a sharp knife score both sides of the aluminium sheet.
Easiest way to cut aluminum sheet.
Get a jigsaw i have a craftsman commercial that the blade goes back and forth as well as up and down i believe they call it oscilating or orbiting.
Cutting aluminum sheet metal with a hammer and chisel is relatively straight forward line up the edge of the chisel along the line you wish to cut and strike the chisel with a hammer.
If the motor housing on your saw is open and could collect metal chips tape a piece of cloth over the openings to protect the motor windings and bearings while you cut the aluminum.
This weakens the aluminium and creates a fracture line.
Start by taping both sides of the sheet metal directly over the line you want to cut and clamp the metal to a work station so it doesn t move.
Making accurate cuts on aluminum rods tubes and angles is easy with a miter saw and a blade designed to cut nonferrous metal check the label.
If you re cutting a line in a sheet of aluminum you can skip the vice and cut your way down the sheet on a flat surface.
You will really be surprised how well this cuts.
Then grip the saw with both hands and push the blade through the metal to cut it.
I have tried everything else this works circle b fab.
Use wood as a backing piece to help push the chisel through the metal and prevent the chisel s tip from wearing.
To cut straight lines use an electric saw.
For thin sheets of metal you can use tin snips to cut through it.
Easy ways to cut sheet metal panels.
Aluminum cutting take my word for it i have cut 100 s of sheets of aluminum diamond plate.
While these methods result in controlled accurate cuts with limited.