Cutting Aluminum Sheet With Grinder

How to cut a straight line on a corrugated metal roof piece with an angle grinder.

Cutting aluminum sheet with grinder.

If you need something very square your. For a home hobby type job like yours use that harbor freight hacksaw frame with a new high quality not from harbor freight blade. But it s impossible to get a proper cut in such tiny effort. To make a proper cut the first thing you will need is the technical support.

Do not use abrasive grinder type blades to cut aluminum. 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. 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. In fact using an angle grinder is quite tricky.

But the discs wear down quickly cut slowly and shrink in diameter as you use them. Something around 14 18 t p i for aluminum. 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. To cut the sheets of metal rathe.

These are good practices for a smooth cut in. Instead we recommend using a diamond blade that s rated to cut ferrous metal. Like i say in the video i have extensive experience using a grinder to cut and shape metal and other materials and only by using the tool to do these thing. Clamp a square to your extrusion as a guide and take your sweet time.