the difference of foundry and forging

Foundry is the process of smelting metal into a liquid that meets certain requirements and pouring it into a mold. After cooling, solidification, and cleaning, a foundry (part or blank) with a predetermined shape, size and performance is obtained. The basic technology of modern machinery manufacturing industry.The cost of the blank produced by foundry is low, and it can show its economical efficiency for parts with complex shapes, especially with complicated inner cavities; at the same time, it has wide adaptability and better comprehensive mechanical properties.

There are many subdivisions of the foundry process, which can be divided into the following types according to the habit of modeling methods:

1.Ordinary sand foundry: Including three types of wet sand, dry sand and chemically hardened sand;

2.Sand and stone special foundry:Special foundry with natural mineral sand and gravel as the main modeling material (such as investment foundry, mud foundry, shell foundry in the foundry, negative pressure foundry, solid foundry, ceramic foundry, etc.);

3.Special metal foundry:Special foundry with metal as the main foundry material (such as metal mold foundry, pressure foundry, continuous foundry, low pressure foundry, centrifugal foundry, etc.).

Forging is a processing method that uses forging machinery to apply pressure to metal blanks to produce plastic deformation to obtain forgings with certain mechanical properties, certain shapes and sizes. Forging is a processing method that uses forging machinery to apply pressure to metal blanks to produce plastic deformation to obtain forgings with certain mechanical properties, certain shapes and sizes. Forging materials are mainly carbon steel and alloy steel with various compositions, followed by aluminum, magnesium, titanium, copper, etc. and their alloys. The original state of the material includes bar stock, ingot, metal powder and liquid metal.

According to the forming method, forging can be divided as following:

1.Open forging (free forging): Including three types of wet sand, dry sand and chemically hardened sand.

2.Closed mode forging: special foundry with natural mineral sand and gravel as the main modeling material (such as investment foundry, clay foundry, shell foundry in the foundry, negative pressure foundry, solid foundry, ceramic foundry, etc.);

3.Other forging classification methods: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 (below the recrystallization temperature) and cold forging (normal temperature).

The distinguishing between forging and foundry:

1.Touch: the surface of the foundry should be thicker, and the surface of the forging should be higher.

2.Look: The cross section of cast iron is gray and dark, while the cross section of forged steel is silvery.

3.Hear: Listen to the sound, the forging is dense, the sound is crisp after the blow, and the foundry sound is dull.

4.Grind: Grind with a grinder to see the difference in sparks between the two (generally the forgings is brighter), etc.

Anyang Huatuo Metallurgy Co., Ltd can supply various types of raw materials for foundry, we own rich experience for the foundry, will be glad to share the knowledge with you.