What is Sheet Metal Forming?

Sheet metal is formed by an industrial process. Where metal is pressed into flat and thin pieces.

Sheet metal forming is a group of complementary process used to form the metal parts. It is used in metalworking, where it is possible to cut and bend the metal into different shapes.  One or more processes are used to take a flat sheet of ductile metal and change the shape of the metal using deformation processes.

Sheet metal operations are done on a press and can be differentiated into 2 categories such as:

  • Cutting.
  • Forming operations.

Cutting Operations

The metal being worked on is placed under a lot of pressure. The stresses caused to the metal by applying forces are also known as shearing stresses. Operations include:

  • Slitting
  • Trimming
  • Notching
  • Shaving
  • Punching
  • Lancing
  • Perforating
  • Blanking

Slitting

It is a type of metal cutting process where huge coils, or rolls of sheet metal stock cut using sharp rotary blades.

The blades design depends on the needs of the job. A shearing operation cuts a huge roll of material into narrower rolls. 2 types are available:

  • Rewind
  • Log

Process

  • Generally, needs a high quality production tool. This is to assure consistent quality for controlling the metal’s width.
  • Involve ferrous and nonferrous metals.
  • Restricted to cutting thin metal materials.

Trimming

It is a cutting process. – Some of the material is removed from a piece of sheet metal by applying enough shearing force.

Process

For removing flash. – A manufacturing process used as a finishing operation for forged parts. It is good practise to perform the operation while the work is hot for the most efficiency. This is usually incorporated into larger production processes.

Notching

It is a shearing (metal cutting) process. During this, a metal scrap piece is removed from the outside edge of a metal workpiece. It is a manually-operated, and low-production process.

Shaving

It is a secondary process used to improve the edges of the cuts that have already been made. At the end of the edge, shaving uses a small clearance to perform a smooth and accurate cut.

It is a chip removal type process and should not be used to cut enormous amounts of materials.

Punching

It is a forming process using a punch press that forces a tool. Via the workpiece to create a hole through shearing. In simple terms i to using a hole punch.

Lancing

It is a cutting process where the material is cut or sliced without producing a slug or separating the workpiece.

A hole is partially cut and bent down to form a sort of tab.

Perforating

The metal piece is punched to create a pattern of holes or even to make some decorative shapes.

What are the materials used to manufacture perforated metal sheet?

  • Tinplate
  • Plastic
  • Stainless steel
  • Aluminum
  • Titanium
  • Cold rolled steel

Variety of industries using this perforated metal method include:

  • Architectural
  • Automotive
  • Food & beverage
  • Construction
  • Chemical and energy

Blanking

During this metal fabrication process, a metal workpiece is removed from the primary metal strip when punched. The removed material is now a new metal workpiece/ blank.

How We Can Help

UK Pressings, based in the West Midlands, have been using the most modern metal sheet forming methods since 1978. Our metal pressers are able to ensure the clients projects are turned around efficiently within scheduled time-frames. We are experienced in providing all kinds of metal tooling. Quality assured, cost-effective and quick delivery has led to our successful growth.

 

CALL – 01922 710 204 for more details!

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