Cutting Precision Holes In Light Sheet Metal

For clean precise holes in thin sheet metal make a wood sandwich.

Cutting precision holes in light sheet metal.

Part 2 of 2. Simply sandwich the sheet metal between two pieces of wood and clamp everything down on a table or workbench. Your hole burrs depend on your drill or cutter. In larger holes use a deburring tool.

Thick using a ferrous metal cutting blade. Measure from the edges of the sheet metal to the point at which you wish to place the hole. For cutting out holes in sheet metal it s going to be necessary that you begin with a starter hole this can be formed by using the hammer and chisel method to punch through the metal. Wax your saw blade before cutting sheet metal.

The process is accomplished through a shearing force that removes material from the sheet of metal leaving a square rectangle or another desired geometric design. In response to a question about h. It may not be an obvious choice but fitted with the right blade a circular saw is a great metal cutting tool. The wooden bread layers of the sandwich keep the sheet metal flat and prevent the drill bit from wandering as it bores through the sheet metal.

Tin snips or aviation snips are one of the most widely used tools to cut sheet metals. Smooth out the hole. In small holes finger twist larger twist drill over the hole. They look like scissors and work fine with sheet metals like brass aluminum tin steel etc.

Cut metal with your circular saw. Punching is a metal cutting process used to create cutouts and holes of various shapes sizes and dimensions in a metal sheet. Apply a thin layer of paraffin or saw wax to the blade just enough to cover the surface before making any cuts in the metal. Some items cut clean and some create rough and sharp insides.

Metal is difficult for saws to cut and rubbing wax along the blade helps prolong its sharpness. There are some cuts that you can do with decent tin snips. Create a paper pattern of the size and shape of hole you wish to cut. Let s discover some awesome saws to cut a round hole in sheet metal.

Such as straight cut snips left cut the right cut etc. You can cut mild steel up to about 3 8 in. In our test it cut through rebar like a hot knife through butter. Hot metal chips will fly everywhere.

Position the pattern on the sheet metal where the hole needs to go and draw a line around it using a permanent marker.