Cutting Rectangular Holes In Sheet Metal

Create a raised edge in sheet metal that locks into the rolled edge of another piece.

Cutting rectangular 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. Https amzn to 2mkd0sj large screw driver. Use your center punch to strike at the center of the hole. Next use a compass to outline the edge of the hole.

Now it s time to use that center punch. A machine called a nibbler uses a small straight punch to create the same geometric removal of sheet metal as that of a larger more complicated punch. Position the pattern on the sheet metal where the hole needs to go and draw a line around it using a permanent marker. Also known as chassis and panel punches they cut through sheet metal and have an automatic centering design for accurate alignment.

I don t mind a quick file to smooth sharp edges but to cut the whole hole with a file is too time consuming and labor intensive and not accurate. In response to a question about h. I guess i ve got holes on the brain lately as i am finishing up the hole wizard for the g wizard conversational cnc product. You could also cut the hole with a jigsaw.

Stud driven rectangular hole punches these punches make openings for a variety of panel switches and connectors. Drill pilot holes slightly larger than the size of the stud. My idea is to get a standard 1 3 square punch and then punch two holes side by side to get my desired 1 3 x 2 3 rectangle but that could produce a crooked rectangle if the squares are not lined up. Punches for the cutting of holes and profiles in sheet metal may come in many different shapes and sizes.

It does this by rapidly punching many overlapping holes to make the larger cut profile. You could use a square punch but it s a bit spendy. A nibbler will do a nice job if you get one that can handle the thickness of your metal. Put your ink to the use and mark the hole center.

Https amzn to 2kstzae sheet metal hammer. Step 1 create a paper pattern of the size and shape of hole you wish to cut. Measure from the edges of the sheet metal to the point at which you wish to place the hole. Be that as it may here is a neat idea from flyboy accessories for cutting larger holes in sheet metal.

Sheet metal hole flaring dies create flares around already cut holes in sheet metal up to 3 16 thick to make the edges stronger and more rigid. Also known as dimple dies.