Blog

How to distinguish forging technology of wheels, forging factory answer it for you.

Forging, like casting, has a very long history in China, forging is a manual workshop production method continued, about the beginning of the last century, forging gradually to the mechanical industrial production method appeared in front of the people, now the railroad, shipbuilding and military industries such as forging figure.

Forging, forging and casting, there are many kinds of classification, according to the different tools used in production, forging technology can be divided into four kinds of modular forging, special forging, grinding ring and free forging.

1, modular forging (referred to as die forging): mainly refers to the metal billet in a certain shape forging die cavity pressure deformation so as to obtain the forgings, die forging can also be divided into warm die forging, cold die forging and hot die forging Three kinds. Warm forging and cold forging are the future direction of development of die forging, also represents the level of forging technology, but also in the test of a forging plant strength.

forging technology

2, special forging: mainly including wedge cross-rolling, liquid die forging, roll forging and radial forging and other forging methods, these methods are more suitable for the production of some special shape parts, for example, wedge cross-rolling can be used to produce transmission shafts and steel balls and other parts; roll forging can be used as an effective pre-forming process, which can reduce the subsequent forming pressure; and radial forging can be used to produce large barrels and step shafts and other forgings.

3, ring lapping: this refers to the production of ring-shaped parts of different diameters through special equipment ring lapping machine, this forging method can also be used to produce train wheels and car wheels and other wheel-shaped parts.

4, free forging: refers to the use of very simple general-purpose tools, or forging equipment on the upper and lower anvil iron to directly apply external force to the billet, so that the billet deformation, so as to obtain the desired geometric shape and internal quality of the forgings processing method.

forging technology 2

These are the four forging methods according to the different tools used in the forging plant, in fact, according to the temperature of forging can also be divided into hot forging, warm forging and cold forging technology.

The beginning recrystallization temperature of steel material is about 727℃, but generally the forging plant will use 800℃ as the division line, generally higher than 800℃ are hot forging; between 300-800 we will call it warm forging or semi-hot forging; forging at room temperature is cold forging. Most of the industry with forgings are hot forging, cold forging and warm forging is generally used in the automotive and general machinery more.