Aluminum extrusion is to put in the mold cavity (or extrusion tube) of the metal billet to exert strong pressure, forcing the metal billet to produce directional plastic deformation, extrusion from the die hole of the extrusion mold, so as to obtain the desired section shape, size and mechanical properties of parts or semi-finished products plastic processing method.

Classification of aluminum extrusion molding

According to the flow direction of metal plastic, extrusion can be divided into the following categories:

Forward extrusion: during production, the flow direction of the metal is the same as that of the punch

Reverse extrusion: during production, the metal flow direction is opposite to that of the punch

Compound extrusion: during production, one part of the blank metal flows in the same direction as the punch, while the other part flows in the opposite direction

Radial extrusion: during production, the direction of metal flow is 90 degrees from the direction of punch motion

Extrusion can not only production profile is simple tube, rod, wire, and can also produce the section shape is very complex, solid and hollow profile products section along the length direction of the phase change and gradual change of variable cross-section profiles, many of the products in the shape of a cross section is beyond the forming of other plastic processing methods.Extruded products also come in a wide range of sizes, from extra-large tubes and profiles with a circumferential diameter of 500-1000mm, to ultra-small precision profiles with profiles the size of matchsticks.

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