Zhongshan Shanfeng CNC Welding Aluminum Products Co., Ltd.
Zhongshan Shanfeng CNC Welding Aluminum Products Co., Ltd
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Aluminum Forging Process Crank connecting rod Metal Forging Techniques
In the field of metal processing, forging and casting are two common and important process methods. Although they both involve the process of heating, shaping and cooling metal, there are many fundamental differences between them.
What is metal forging?
Forging is a process of shaping and deforming metal by applying external force. During the forging process, the metal is processed into the desired shape at high temperature, and its structure and properties are also improved. The forging process is widely used to manufacture various high-strength and high-toughness parts, such as aircraft engine blades, gears, shaft parts, etc.
What is metal casting?
Casting is a process of pouring molten metal into a mold and forming the desired shape after it cools and solidifies. During the casting process, the metal is transformed from liquid to solid, and its structure and properties also change accordingly. The casting process is widely used to manufacture various parts, such as mechanical parts, cast iron pipe fittings, steel castings, etc.
The connection and difference between metal casting and forging processes:
Material flow properties: Casting is the flow of liquid metal to form a shape, while forging is the solid metal to achieve a shape through plastic deformation.
Processing method: Casting is formed by a mold, and forging is deformed by hammering or applying force with a press.
Surface quality: The surface roughness of castings is high and requires subsequent processing; while the surface quality of forged parts is good, which can reduce the workload of subsequent processing.
Production efficiency: Casting is suitable for mass production and has high efficiency; forging is suitable for small batch production and has relatively low efficiency
In practical applications, the selection of casting and forging needs to be determined according to specific circumstances.
For some parts with simpler shapes and low requirements for strength and toughness, casting is an economical choice. Because the casting process can produce parts with more complex shapes, and the required properties can be obtained by controlling the alloy composition.
However, for some parts with higher requirements for strength and toughness, such as aircraft engine blades, gears, etc., forging is a better choice. Because the forging process can improve the organization and properties of the metal through shaping and deformation, and improve the bearing capacity of the parts.