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Sheet Metal Process

Sheet metal forming process where the force is applied to a piece of sheet metal to modify its geometry rather than remove any materials from it.

Sheet metal forming involves a wide range of processes that manufacture parts for a vast amount of purposes, both seen and unseen. It refers to metal that has a high surface area to volume ratio. Forces must be applied to the metal beyond its yield strength so that the metal are able to deform plastically but not to fail. By doing so, the sheet can be bent or stretched into a variety of complex shapes.

Bending

Sheet metal bending is the plastic deformation of the work over an axis, creating a change in the part’s geometry. Similar to other metal forming processes, bending changes the shape of the work piece, while the volume of material will remain the same. Examples of sheet metal bending are:

  • Sheet Metal Bending with a V Die
  • Edge Bending with Wiping Die
  • Rotary Bending of Sheet Metal
  • Air Bending

Cutting

Cutting operations involve the separation of the metal sheet in certain areas. This separation caused by shearing forces acting on the metal through the edges of the punch and die. The working of a sheet between two die refers to pressworking. In pressworking, the upper die is called a punch. Sheet and plate generally refers to rolled metal with a high surface area to volume ratio. Cutting process includes:

  • Shearing – to separate large sheet
  • Blanking – to cut part perimeters out of sheet metal
  • Punching – to make holes in sheet metal

Stamping

Metal Stamping is a process that use dies to transform flat metal sheets into shapes. Mechanical and hydraulic are the two types of stamping presses. Metal stamping machines cast, punch, cut and shape metal sheets. To create three-dimensional shapes, a flat sheet of metal is inserted into a die and then a mechanical press is activated to create the object. Metal stamping are used in a variety of industries because parts can be completed at a very high rate and save overall production times and costs.