Cutting dies
Cutting dies are used to manufacture a wide range of different products that are cut or stamped from flat sheet metal. Every cutting die consists of two main components that determine the production process for the article to be manufactured: one is the sharp-edged counter-die, also known as blanking die; the other the cutting punch whose shape fits precisely into the counter-die. Both the blanking die and the cutting punch are made of hardened materials.
Cutting dies are mostly inserted into an eccentric press, or occasionally into a hydraulic press. In this, the blanking die is firmly attached to the machine table and the cutting punch to the moving part of the automatic stamping machine, also known as a plunger.
In a simple stamping process, a sheet metal strip is fed into the cutting die, and the cutting punch is driven through the sheet metal strip under high pressure. By way of this “stroke”, the punch cuts through the sheet metal strip, and the finished stamping falls through the blanking die, which is slightly widened towards the bottom, or the cut part is ejected by the advance motion of the metal strip.
Here you can see an example of a cutting die:
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Cutting die for the production of stenter frame chain clips |
