Folding Sheet Metal Edges

During seaming two sheet metal parts or two edges of the same sheet metal are joined in an interlocking manner.

Folding sheet metal edges.

Before folding sheet metal it is good practice to smooth all edges using a hand file followed by emery cloth. Create a bend with acute angle tooling in the metal 30 is preferable but 45 will work for some circumstances. Commonly used equipment include box and pan brakes brake presses and other specialized machine presses typical products that are made like this are boxes such as electrical enclosures and rectangular ductwork. Most frequently expensive sheet metal bending tools called brakes are used to bend sheet metal but you can also complete this task without one.

This is done by simultaneously folding or pressing the prepared and fitted edges. Learn how to bend sheet metal so you. Bending sheet metal by hand is a manageable task if the piece of sheet metal is small and thin enough to handle. According to the din 8580 series of standards this process belongs to subgroup 4 5 joining by forming and is specified by din 8593.

Kwandotechnic please like share and subscribe my ch. One of the most important considerations in sheet metal manufacture is the condition of the sheet metal s edges particularly with regard to the part after manufacture. Edge bending processes. With the aid of a straight edge and a sharp knife score both sides of the aluminium sheet.

Sheet aluminium can be cut without the need for a guillotine or tin snips which tend to deform the metal. In sheet metal hemming means to fold the metal back on itself. Bending is a manufacturing process that produces a v shape u shape or channel shape along a straight axis in ductile materials most commonly sheet metal. The sheet metal is place between the two working surfaces of the folding bars and placed in a vice.

This weakens the aluminium and creates a fracture line. When working with a brake press hems are always created in a two step process.