The difference between forging and casting

Different wordings:

Forging: Using hammers and other methods to change the formable state of metal materials into a certain shape and size workpiece, altering its physical properties.

Casting: a processing method of casting metal into a mold after melting it into liquid, cooling and solidifying, cleaning, and obtaining the required shape of the casting. It can manufacture objects with complex shapes.

Manufacturing processes are different.

Forging: It is a processing method that uses forging machinery to apply pressure to metal blanks, causing plastic deformation to obtain forgings with certain mechanical properties, shapes, and dimensions. It is one of the two main components of forging (forging and stamping).

Casting: The method of casting liquid metal into a casting mold cavity suitable for the shape of the part, and obtaining the part or blank after cooling and solidification.

Two, Forging and Casting Purposes

Forging is usually used to process forgings of specific shapes and sizes.

Casting is a more economical blank forming method, usually used for complex-shaped parts.

Advantages and disadvantages of forging and casting

Forging advantages:

Forging eliminates the casting-like pores and other defects generated during the smelting process, optimizes the microstructure, and maintains the integrity of metal flow. The mechanical properties of forgings are usually better than those of dry castings of the same material. For important parts of machinery operating under high loads and harsh working conditions, forgings are more common than simple-shaped rolled plates, profiles, or welded parts.

Casting advantages:

It can produce parts with complex shapes, especially complex cavities.

2. Wide adaptability, commonly used industrial metal materials can be cast, ranging from a few grams to several hundred tons.

3. The raw materials come from a wide range of sources and are inexpensive. For example, scrap steel, waste steel, wood chips, etc.

The shape and size of the casting are very close to the part, reducing the amount of cutting and eliminating the need for cutting processing.

Widely used, 40% to 70% of agricultural machinery, machine tools, 70% to 80% of the weight of castings.