Best Way To Cut Aluminum Sheet Metal

If your project requires curved cuts make an easy economical and adjustable.

Best way to cut aluminum sheet metal.

There are two ways to cut round ducts. To cut the sheets of metal rathe. Instead we recommend using a diamond blade that s rated to cut ferrous metal. They don t cut curves well.

First if you want to cut a duct near the middle and use both ends mark and cut the duct before snapping it together. Place the sheet metal on top of the workbench and lay out your pattern using a tape measure pencil and straightedge. Place the fracture line over the edge of a table and bend the overhang slightly downwards. Clamp the sheet metal in place on your work table to hold it in place while you work.

Align the snips with the line you want to cut with the upper blade of the tin snips touching the sheet metal. With the aid of a straight edge and a sharp knife score both sides of the aluminium sheet. Sheet aluminium can be cut without the need for a guillotine or tin snips which tend to deform the metal. An angle grinder fitted with an abrasive metal cutting disc works well to cut all kinds of metal including bolts angle iron rebar and even sheet metal.

But the discs wear down quickly cut slowly and shrink in diameter as you use them. Using a softer piece of material such as wood as a backer will allow the chisel to push through the metal and prevent wear on the chisel s tip. Tin snips are primarily used for cutting thin sheet metal like tin aluminum brass and thin gauge stainless steel.