Best Way To Cut Aluminum Sheet Metal

To cut the sheets of metal rathe.

Best way to cut aluminum sheet metal.

They don t cut curves well. Sheet aluminium can be cut without the need for a guillotine or tin snips which tend to deform the metal. Clamp the sheet metal in place on your work table to hold it in place while you work. If your project requires curved cuts make an easy economical and adjustable.

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

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. Straight cutting compound snips work best for cutting thick or doubled up sheet metal. Instead we recommend using a diamond blade that s rated to cut ferrous 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. This weakens the aluminium and creates a fracture line. There are two ways to cut round ducts.