Cutting Large Holes In Sheet Metal

In a well designed sheet metal cutting process the cracks should meet each other and form a continuous break.

Cutting large holes in sheet metal.

It s meant for creating lightening holes of the type seen when building aircraft or maybe just toolboxes and furniture that are built like wwii fighter planes. Don t say that you were thinking of holding that metal sheet with bare hands. Depending on the tools you have you ll now need to punch or drill a hole where the indentation has been made to produce an accurate hole in your sheet metal. In response to a question about h.

Be that as it may here is a neat idea from flyboy accessories for cutting larger holes in sheet metal. The fracture region starts at the end of the burnish region and occupies most of the rest of the thickness of the cut with exception to the burr. For large holes a hole saw gets the job done cleanly and quickly. Use clamps to hold the sheet.

Tap your hammer to leave an indentation on the sheet metal. How to cut a round hole in sheet metal. Follow few steps step 1. Like twist bits hole saws chuck right into your drill and will cut through thin gauge sheet metals like aluminum and steel.

Use a scrap of plywood as a backer for the hole saw s pilot bit and to protect your work surface. At first locate the center of the. I ve messed with trepanning tools abrasive wheels hole saws and all manner of other stuff for cutting large holes in sheet metal. For this step you ll need a compass ink and a center punch.

Step bits can be used to make even larger holes typically 1 3 8 inch wide or smaller in sheet metal but do require pilot holes.