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Forging parts: basic description of forging

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Forging parts: basic description of forging

Release date:2013-11-13 00:00 source:http://www.cssanyi.cn Click:

Forging parts: basic description of forging

    Pressure is applied to the metal blank by the forging machine to produce plastic deformation to obtain a machining method with certain mechanical properties, certain shape and size forging. Forging one of the two major components. By forging can eliminate the casting of metal as loose, welding holes, forgings of the mechanical properties are generally better than the same material castings. Machinery, high load, severe working conditions of the important parts, in addition to the shape of the available rolling sheet, profiles or welding parts, the use of forging parts.

    Forging pieces according to the forming method can be divided into: ① open forging (free forging). The use of impact or pressure to make the metal in the upper and lower iron (anvil) between the deformation to get the required forging, forging than the main manual forging and mechanical forging two. ② closed mode forging. The metal blank is pressed and deformed in a forging die with a certain shape to obtain forgings, which can be divided into forging, cold heading, rotary forging and extrusion. According to the deformation temperature forging can be divided into hot forging (processing temperature is higher than the billet metal recrystallization temperature), warm forging (lower than the recrystallization temperature) and cold forging (room temperature).

    Forging materials are mainly composed of various components of carbon steel and alloy steel, followed by aluminum, magnesium, titanium, copper and its alloys. The original state of the material is bar, ingot, metal powder and liquid metal. The ratio of the cross-sectional area of the metal before deformation to the cross-sectional area after deformation is called the forging ratio. Correct choice of forging than to improve product quality, reduce costs have a great relationship.


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