Bench mounted tools such as shears or band saws cut aluminum sheet relatively slowly and with varying amounts of accuracy.
How to cut thin aluminum sheet metal.
If you use metal shears to cut thin sheet metal such as duct metal it curls and can be difficult to flaten properly.
Align the tin snips with the sheet metal.
With the aid of a straight edge and a sharp knife score both sides of the aluminium sheet.
The illustrations are for a small bracket but i have cut 3 foot long pieces using this method.
Sheet aluminium can be cut without the need for a guillotine or tin snips which tend to deform the metal.
This weakens the aluminium and creates a fracture line.
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.
Clamp the sheet metal in place on your work table to hold it in place while.
Most tin snip manufacturers color code their.
Using tin snips for thin sheets 1.
Choose between red blue or yellow snips based on the cut direction.