Forging is a combination of forging and stamping, which is a forming and processing method that uses the hammer head, anvil block, punch or mold of forging machinery to apply pressure to the billet, causing plastic deformation and obtaining the desired shape and size of the workpiece.

The characteristics of aluminum alloy forging and forging are:

Forging can change the structure of metals and improve their properties. After hot forging, the original cast state of the ingot is compacted or welded due to looseness, porosity, micro cracks, etc; The original dendritic crystals are shattered, causing the grains to become finer; Simultaneously changing the original carbide segregation and uneven distribution, making the structure uniform, thereby obtaining internally dense, uniform, fine, well performing, and reliable forgings. After hot forging deformation, the metal of the forging has a fibrous structure; After cold forging deformation, the metal crystals exhibit orderliness.

Forging is the process of plastic flow of metal to produce workpieces of the desired shape. Metal undergoes plastic flow under external forces, and its volume remains unchanged. Moreover, the metal always flows towards the part with lower resistance Z. In production, the shape of the workpiece is often controlled according to these rules to achieve deformation such as upsetting, stretching, expanding, bending, and deep drawing.

The size of the forged workpiece is accurate and conducive to organizing mass production. The dimensions of die forging, extrusion, stamping and other application molds are accurate and stable. Forging machinery and automatic forging production lines can be used to organize specialized large-scale or mass production.

1) Large weight range. Bai forgings can range from a few grams to several hundred tons.

2) Higher quality than castings. The mechanical properties of forgings are better than castings, and they can withstand large impact forces and other heavy loads. Therefore, forgings are used for important and high stress parts.

For high carbide steel, forgings have better quality than rolled materials. High speed steel rolled (or forged) materials can only meet the usage requirements after being modified and forged. Especially high-speed steel milling cutters must undergo forging modification.

3) Heavy Z is light. On the premise of ensuring design strength, forgings are lighter in weight than castings, which reduces the weight of the machine itself and is of great significance for transportation vehicles, airplanes, vehicles, and spacecraft.

4) Save raw materials. For example, for a crankshaft with a static weight of 17kg used in automobiles, when using rolling cutting and forging, the chips account for 189% of the crankshaft weight, while when using forging, the chips only account for 30%, which also shortens the machining time by 1/6.

Precision forged forgings can not only save more raw materials, but also save more machining hours.

5) High productivity. For example, using two hot forging presses to forge radial thrust bearings can replace 30 automatic cutting machines. When using a top forging automatic machine to produce M24 nuts, the productivity of a six axis automatic lathe is 17.5 times higher.

6) Free forging has great flexibility, therefore, forging methods are widely used in some manufacturing plants to produce various accessories.

The forging quality is high, the workpiece structure is dense, and the mechanical properties are high. Except for free forging, the productivity of other forging processes is high. Free forging is suitable for single piece and small batch production, with great flexibility and saving metal materials.