Aluminum Processing Extrusion

Extrusion is a method in which an ingot is placed in a squeeze cylinder, and a metal is pressed by an extrusion shaft to be extruded from a die hole of a given shape and size to cause plastic deformation to obtain a desired extruded product. processing methods. The direction of metal flow is different when pressed. Extrusion can be divided into forward extrusion, reverse extrusion and co-extrusion. In the forward extrusion, the direction of movement of the extrusion shaft coincides with the flow direction of the extruded metal, and in the reverse extrusion, the direction of movement of the extrusion shaft is opposite to the flow direction of the extruded metal. According to the heating temperature of the ingot, the extrusion can be divided into hot extrusion and cold extrusion. In hot extrusion, the ingot is heated to a temperature above the recrystallization temperature for extrusion, and the cold extrusion is performed at room temperature.