Producing aluminum profiles by extrusion is a method that saves metal and has high production efficiency. However, it is affected by many factors. The possibility of extrusion must be taken into consideration when designing the aluminum profile section. Let’s discuss the profile section below. Several main factors of design.

(1) Cross-sectional size
The cross-section size of the profile is measured by the circumscribed circle. The larger the circumscribed circle, the greater the extrusion force required; usually, the maximum circumscribed circle aluminum profile that can be extruded on each extruder is not fixed. Relevant to the diameter of the extrusion barrel;

(2) Complexity of cross-sectional shape
According to the cross-sectional shape of aluminum profiles, they can be divided into three major categories, namely solid profiles, semi-hollow profiles and hollow profiles;
(3) Squeeze coefficient
In order to allow the extrusion coefficient to have a certain amount of deformation without making it difficult to extrudate, it is important to choose the extrusion coefficient reasonably;
(4)Aluminum profile wall thickness
The minimum wall thickness of a specific aluminum profile depends on the diameter of the circumscribed circle of the profile, alloy composition and shape factors; the wall thickness is related to the ease of extrusion of the alloy;
(5) Design of enclosed space area
In terms of the cross-sectional shape of the aluminum profile, any part surrounded by three sides and open on one side is called the space area. From the perspective of the mold, this space is a cantilever beam. When the cantilever beam is thin and deep, the mold damage rate is greater. It is even difficult to extrude it. Even if it can be extruded, it is difficult to extrude qualified aluminum profile products;
(6) Corner radius between right angles
The excessive radius on the convex right angle is very important. If the radius is too small, stress concentration will occur on the mold, while the concave right angle is prone to wear at the entrance of the die hole;

(7) Section size tolerance of aluminum profiles
The cross-section size tolerance should be determined based on the processing allowance of the aluminum profile, usage conditions, difficulty of extrusion of the profile, alloy grade and shape location. Usually, it is specified in the relevant technical standards or in the drawings provided by the user; For some aluminum profiles that are difficult to extrusion, the shape can be changed, or the process margin and dimensional tolerance can be increased to reduce the difficulty of extrusion, and extruded aluminum profiles that approximate the requirements can be extruded and then shaped or processed to Use shapes and sizes;

(8)Other design elements
There are many types of aluminum alloy profiles. In addition to common design elements, you must also consider their own special design elements when designing;