How To Fold Sheet Metal Edges

Kwando technic introduce how to homemade a metal pressing tool.

How to fold sheet metal edges.

Step 3 repeat. Step 2 use your die grinder with a mounted point we like shape w222 and simply run the point over the edge of the sheet metal. Before folding sheet metal it is good practice to smooth all edges using a hand file followed by emery cloth. Make a slot along one edge of your folder to accommodate the first bend.

Rough sharp edges can be a safety issue and are more difficult to remove once the sheet metal is folded to a 3d shape. The sheet metal is place between the two working surfaces of the folding bars and placed in a vice. The slack between the wipe die and the punch plays an important role in getting a good result. Not the sheet itself.

Wipe bending or edge bending is another way to bend sheet metal edges. This is done by simultaneously folding or pressing the prepared and fitted edges. As a result the wipe die also determines the bend s inner radius. When folding edges see first photo it is the edge that is placed in the bender.

Position the first fold such that it will enter the slot when the bend is complete. It is important to make sure that the sheet is properly pushed onto the wipe die. The completed corner is shown in the last two photos. During seaming two sheet metal parts or two edges of the same sheet metal are joined in an interlocking manner.

According to the din 8580 series of standards this process belongs to subgroup 4 5 joining by forming and is specified by din 8593.