Extrusion

Extrusion or forging is one of the volumetric methods to change the shape of materials in order to reduce their thickness or cross-section, as a result of which, parts with a smooth and
vertical cross-section are produced. To carry out the extrusion process, the desired raw material, inside Extrusion mold on which the desired cross-section is created, it is compressed and as a result, the extruded part with the cross-section of the mold is produced. The two advantages of this process, compared to other forming methods, are the high ability to produce parts with a complex cross-section, as well as the shaping of brittle and brittle materials, because the material in this method is only under pressure Shear stress Placed. This method also creates parts with a very high-quality and smooth cross-section, making the material stronger. Extrusion can Continuous (production of long parts) or Semi-continuous (multiple production). The extrusion process can be done with cold or hot raw materials. The types of materials on which extrusion is performed are metals, polymers, ceramics and food and…

Aluminum extrusion press machine

In this device, a strong piston is used to apply a uniform load on the desired part Press It is used in the body of the device. Since Friction There is a lot between the body of the device and the part Temperature also increases; Therefore, it is necessary to cool the body of the device as many times as possible. Soap water or oil is used for cooling. The body material of this device must be resistant to be able to Tensions Enter to bear it. The material of the body is usually from Tungsten carboneide Is.

The extrusion process starts with heating the aluminum. Then it is placed inside the tank of the press machine. (Metal raw materials, in the form of Billets are cast cylindrical and placed inside the tank of the press machine) then a retaining piece is placed between the billet and the piston and the billet is pressed into the mold by the piston. The extruded product is then pulled from the other side to be flattened. To improve the properties of the product, hot and cold work processes should be done on it.