Types of sections

There are two types of extrusions: Solid extrusions and hollow extrusions
Solid extrusions

Solid extrusions

Hollow extrusionsRAS5460 786x636

Hollow extrusions

 

Hollow dies or solid dies

The dies for solid extrusions consist of a flat plate which forms the external shape of the extrusion. The dies for hollow extrusions consist of two parts where the aluminium flows through the ports and then rewelds as it flows over the mandrel during pressing. The other die part creates the extrusion’s outside surface. Up to twelve extrusions – depending on the size – can be pressed in multi-cavity dies. The dies are made of high temperature resistant steel and the die’s opening is made by wire erosion in CNC controlled machines. Hytools AS is part of the Hydal Group, and is one of Scandinavias leading manufacturers of precision tools for aluminium extrusions.  
Solid

Solid

Hollow

Hollow