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Difference between casting and forging

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Difference between casting and forging

  • Categories:Company News
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  • Time of issue:2019-09-17 15:54
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(Summary description)First, the difference between forging and casting:1. Words have different meanings:Forging: Use hammering and other methods to make a metal material in a plastic state into a workpiece with a certain shape and size, and change its physical properties.

Difference between casting and forging

(Summary description)First, the difference between forging and casting:1. Words have different meanings:Forging: Use hammering and other methods to make a metal material in a plastic state into a workpiece with a certain shape and size, and change its physical properties.

  • Categories:Company News
  • Author:
  • Origin:
  • Time of issue:2019-09-17 15:54
  • Views:
Information

First, the difference between forging and casting:

1. Words have different meanings:

Forging: Use hammering and other methods to make a metal material in a plastic state into a workpiece with a certain shape and size, and change its physical properties.

Casting: A processing method in which the metal is melted into a liquid and then poured into a mold, cooled, solidified, and cleaned to obtain a casting of the desired shape. Various objects with complex shapes can be made.

2. The production process is different:

Forging: It is a processing method that uses a forging machine to apply pressure to a metal billet to plastically deform it to obtain a forging with certain mechanical properties, certain shape and size. One of the two major components of forging (forging and stamping).

Casting: It is a method of casting liquid metal into a casting cavity suitable for the shape of the part, and after it cools and solidifies, the part or blank is obtained.

2. Forging and casting purposes:

1. Forging is generally used in the processing of forgings of a certain shape and size.

2. Casting is a relatively economical blank forming method, and is generally used on parts with complex shapes.

Third, the advantages and disadvantages of forging and casting:

Forging advantages:

Through forging, defects such as as-cast looseness generated in the smelting process can be eliminated, and the microstructure can be optimized. At the same time, due to the preservation of the complete metal streamline, the mechanical properties of forgings are generally better than those of castings of the same material. For important parts with high load and severe working conditions in related machinery, forgings are mostly used in addition to rolling plates, profiles or welded parts with simple shapes.

Casting advantages:

1. It can produce parts with complex shapes, especially blanks with complex inner cavities.

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

3. Wide source of raw materials and low prices, such as scrap steel, scrap parts, chips, etc.

4. The shape and size of castings are very close to the parts, which reduces the amount of cutting and belongs to non-cutting processing.

5. Widely used, 40%~70% of agricultural machinery and 70%~80% of the weight of machine tools are castings.

Forging Disadvantages:

1. Trauma accidents that are prone to occur in forging production.

2. The cost is much higher than casting.

Casting Disadvantages:

1. The mechanical properties are not as good as forgings, such as coarse structure and many defects.

2. In sand casting, single-piece and small-batch production is labor-intensive.

3. The quality of castings is unstable, there are many processes, and the influencing factors are complex, which are prone to many defects.

 

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