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Hot Embossing by Matthias Worgull

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8.2. Elements of Hot Embossing Tools

Most of the requirements described above can be fulfilled by a basic tool concept. Nevertheless, specific molding requirements may need individual concepts. The following section describes some technical solutions, without any claim of completeness.

8.2.1. Heating Concepts

For heating, three different physical concepts are available: heating by convection, by radiation, and by conduction.

Heating by radiation is established in macroscopic thermoforming processes, where a thin polymer foil is heated up to the glass transition range. This macroscopic thermoforming process is characterized by short heating times. It is sufficient to heat the polymer film only. Transferring this concept to hot embossing requires ...

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