Metal stamping

What is cold stamping?

The processes of cold forming or cold stamping of metals are operations carried out in different types of machines which deform the materials to obtain parts with different shapes.

During these processes, the temperature does not exceed the recrystallization of the metal, therefore it is considered cold-working. Most metals are cold-worked at room temperature although the forming reaction in them causes a temperature rise.

Cold stamping allows to work with high-strength materials that offer weight reduction solutions for final parts, and this is thanks to the fact that it improves strength, machinability, dimensional accuracy and finishing of surfaces.

How does it work?

The processes of cold forming of metals are operations carried out in different types of machines which deform the materials to obtain parts with different shapes.

In broad terms, these are the main processes in cold forming or cold stamping:

1. Bending

  • V-bending
  • Wipe bending

2. Cutting

  • Shearing
  • Die cutting

3. Deep drawing

There are another series of automated processes where part of these main processes coexist, such as roll forming. Roll forming is a forming process in which a sheet is progressively shaped through a series of bending operations; each roll station performs one stage in the complete bending of the sheet to form the desired profile.

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