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Cemented Carbide Forging Die

Views: 25     Author: Site Editor     Publish Time: 2020-03-13      Origin: Site

Cemented carbide forging die is also called forging die. It has good heat resistance and fatigue resistance. It applies a certain pressing force through the closing and closing of the upper and lower dies, so that the forgings have better structure and mechanical properties. There are many types of hard alloy forging dies, which are mainly classified according to manufacturing equipment, and can be divided into tire dies, hammer forging dies, mechanical forging dies, flat forging dies, and roll forging dies.

Tire mold: used on free forging equipment, suitable for small forgings, small and medium batch production;

Hammer forging die: under the dynamic action of the forging equipment, the blank is forced to plastic flow forming in the forging die boring, so as to obtain a forging with a higher quality than the free forging;

Machine forging die: The die on the mechanical press is a die for forming a forged piece or its semi-finished product;

Flat forging die: a mold for forming a blank into a forged piece or a semi-finished product on a horizontal forging machine;

Rolling forging die: a fan-shaped die that longitudinally rolls the blank on a roll forging machine, which is 5-10 times higher than the hammer forging die.

Compared with castings, metal can improve its microstructure and mechanical properties after forging. Due to the deformation and recrystallization of the metal after hot working deformation of the forging method, the original coarse dendrites and columnar grains become equiaxed recrystallized structures with finer grains and uniform sizes, which causes the original segregation, The compaction and welding of looseness, pores, and slag inclusions make the structure more compact, which improves the plasticity and mechanical properties of the metal. The mechanical properties of castings are lower than those of forgings of the same material. In addition, the forging process can ensure the continuity of the metal fiber structure, so that the fiber structure of the forging is consistent with the shape of the forging, and the metal streamline is complete, which can ensure that the part has good mechanical properties and long service life. Precision die forging and cold extrusion are used. Forgings produced by processes such as warm extrusion, are incomparable to castings. Forgings are metal objects that are pressed under pressure to shape the required shape or suitable compression force through plastic deformation. This force is typically achieved by using a hammer or pressure. The forging process creates a delicate grain structure and improves the physical properties of the metal. In the actual use of parts, a correct design can make the particle flow in the direction of the main pressure. Castings are metal forming objects obtained by various casting methods, that is, smelted liquid metal is poured into a pre-prepared mold by pouring, injection molding, suction or other casting methods, and after cooling, it is subjected to falling sand, cleaning and after Processing, etc., to obtain a workpiece with a certain shape, size and performance.

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