Zhongshan Shanfeng CNC Welding Aluminum Products Co., Ltd.
Zhongshan Shanfeng CNC Welding Aluminum Products Co., Ltd
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Aluminum Forging Superior Mechanical Properties
Forging is a processing method that uses forging machinery to apply pressure to metal blanks to cause them to undergo plastic deformation to obtain forgings with certain mechanical properties, shapes and sizes.
One of the two major components of forging. Forging can eliminate the looseness of the metal in the cast state and weld holes. The mechanical properties of forgings are generally better than those of castings of the same material. Important parts in machinery with high loads and severe working conditions are mostly forged, except for simpler shapes that can be rolled plates, profiles or welded parts.
Forging can be divided into the following according to the forming method:
① Open forging (free forging). Impact force or pressure is used to deform the metal between the upper and lower irons (anvils) to obtain the required forgings. There are mainly two types: manual forging and mechanical forging.
② Closed forging. The metal blank is compressed and deformed in a forging die with a certain shape to obtain a forging. It can be divided into die forging, cold heading, rotary forging, extrusion, etc. According to the deformation temperature, forging can be divided into hot forging (processing temperature is higher than the recrystallization temperature of the blank metal), warm forging (lower than the recrystallization temperature) and cold forging (normal temperature).
The materials used for forging are mainly carbon steel and alloy steel of various compositions, followed by aluminum, magnesium, titanium, copper, etc. and their alloys. The original state of the material includes bars, ingots, metal powders and liquid metals. The ratio of the cross-sectional area of the metal before deformation to the cross-sectional area of the mold after deformation is called the forging ratio. Correctly selecting the forging ratio has a great relationship with improving product quality and reducing costs.