With the development of industrialization, aluminum profiles have become an indispensable production material in the national economy. The progress of science and technology has higher and higher requirements for the dimensional accuracy and performance of profiles. The extrusion processing method has greater advantages than other methods. It occupies a more important position in the industrial system and greatly improves the production efficiency. For several extrusion methods commonly used in industry, they can be divided into the following methods according to different types:

1. According to the extrusion direction: forward extrusion (positive extrusion), reverse extrusion (reverse extrusion), and lateral extrusion;

2. According to the deformation characteristics: plane deformation extrusion, axisymmetric deformation extrusion, general three-dimensional deformation extrusion;

3. According to the lubrication state: non-lubricated extrusion (adhesive friction extrusion), lubricated extrusion (conventional lubrication extrusion), glass lubricated extrusion, ideal lubrication extrusion (hydrostatic extrusion);

4. According to extrusion temperature: hot extrusion, cold extrusion, warm extrusion;

5. According to the extrusion speed: high-speed extrusion, low-speed extrusion (ordinary extrusion), impact extrusion (ultra-high-speed extrusion);

6. According to the mold structure, it is divided into: flat die extrusion, cone die extrusion, split die extrusion, and perforated needle extrusion;

7. According to the shape of the blank: round extrusion cylinder extrusion, flat extrusion cylinder extrusion, multi blank extrusion, composite blank extrusion;

8. According to the shape of the profile: bar extrusion, pipe extrusion, solid profile extrusion, hollow profile extrusion, variable section profile extrusion, single-hole die extrusion, multi-hole die extrusion;

9. According to equipment type: way extrusion, horizontal extrusion, Conform continuous extrusion.