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Bending materials

Bending plastics

A has a heated element that provides heat, concentrated to just a few millimetres wide, along the length of the long machine. These are used to heat polymers along this line so that they can be bent. Once the polymer softens, it will bend easily into shape around a before being left to cool. It is a fast and easy process but can only form basic shapes. Heated polymers can be placed in a so that the bend produced is the same each time.

The process of line bending, showing a thermoplastic heated again a heater bar and then bent into shape.

Bending metal

Metal , such as aluminium, steel and copper, can be bent using with the metal clamped in place during bending. These examples can be bent in straight lines quite easily by hand or using a hammer.

Hands hold a metal component to a machine that will hold and bend it.