(1) Improve the deformability of raw materials. The metal material is in a strong three-direction compressive stress state in the extrusion deformation zone, and the plasticity can be fully exerted to obtain a large deformation amount.
(2) The comprehensive quality of the products is high. Extrusion can improve the structure of the raw materials and improve its mechanical properties. The longitudinal mechanical properties of the extruded products after quenching and aging are much higher than other methods. Compared with rolling, forging and the like, the extruded product has high dimensional accuracy and good surface quality.
(3) Great flexibility. Extrusion has great flexibility. It can be changed in shape, size and variety on the same equipment by changing the mold. The replacement of the mold is simple, convenient, time-consuming and efficient.
(4) The process is simple and the equipment is small. Compared with pipe and profile processes such as piercing and rolling, and through-rolling, extrusion has the advantages of short process flow.