How To Make A Sheet Metal Box With Curved Edges

Insert the first edge into a bending brake.

How to make a sheet metal box with curved edges.

2008 includes a new corner weld that cleans up sheet metal. It is easier to cut off a 4 x 12 strip if you have a 12 x 12 sheet first then cut two 3 1 2 pieces from that strip. Step 4 grind flush. Minimise the gap setting to the least value allowed.

Use your bending leaf handles to slowly fold your sides and tabs to 90 degrees. Model a baseflange with the radius down to the bare minimum. We start the box by making its sides. Step 1 is to design the corners like shown in above image.

You can create the perfect uniform radius with these bevel heads. This will create a lip. Lower the clamping bar handle down to clamp your metal into place. What you can t do is unfold it.

The sides will be 3 x 3 but we add 1 2 tabs on three sides. Once all of the squares are cut out you ll be left with the four flaps. It s suppressed in the flat pattern. Repeat steps 1 5 for the opposite side of your box.

Step 3 weld all seams. This is how easy it is to make a rounded edge on metal. Now if you make the box by creating an extruded rectangle add fillets to all of the edges and corners and then shell the thing outward you can make that into a sheetmetal and add louvers and ports and stuff like that. Make sure that it is lined up with the line you measured earlier.

Step 2 is to tack weld the cornerfill into place. So mark out two 4 x 3 1 2 sections of sheet metal and cut it in the metal shear. You ll be bending over the edges of these flaps to make smooth edges for the top of the box. Return your bending leaf to neutral position and lift up your teeth to remove your bent metal.