In metallurgy industry, forging and stamping technique and rolling technique are two commonly used methods for plasticity processing of metal ingot. During the forging and stamping process, the billets will be stamped with Cylinder Parts - forklift OEM part, hammer or mold until they have plastic deformation and are finally made into parts of expected shapes and sizes. As for the rolling technique, it involves the process of compressing the metal ingot in the gap between the spinning roller until the ingots are reduced in cross section and increased in length.
 
Rolling technique is a very frequently production craft adopted in manufacturing steel. The rolling technique is used to produce board, pipe and etc. Rolling technique mainly includes hot rolling and cold rolling. However, for the forging and stamping process, the whole ingot will be plastically deformed. During the stamping process, the ingot will be deformed when its sectional structure is changed. The forging technology is mainly used to process metal parts. Besides, some of the non-metal material can also be processed via forging equipment, such as engineering plastics, rubber, ceramic ingots, brick ingot or composite material in forging industry.
 
The stamping and forging technology can change the inner structure of the metal so as to improve its mechanical property. After being dealt by forging process, plastic flow will occur in the inner structure of the ingot. The external force will deform the ingot, but its volume will not change. The forging parts will have exact size, thus the forging process is suitable for massive scale of production of ingot. The forging process involves the application of mold, thus the size and shape of the forgings can be nailed down within very zero error. The forging technology can realize high efficient and automatic production.
 
The most commonly used forging machine includes forging hammer, hydraulic pressure machine and mechanical pressure machine. The forging hammer can produce very fast stamping pace, which is very beneficial to the plastic flow of the metal. But the forging hammer may result in vibration. As for the hydraulic pressure machine, it can forge the ingot with static force, which is beneficial for the change of the inner structure of the metal. But the production rate is low. However, the mechanical pressure machine can realize automatic process of ingot. The future forging technique will target on improving the inner quality and fine production of the parts so as to improve the mechanical property of the final forgings.
 
The rolling technique includes two types, that is, cold rolling and hot rolling. The Cam shaft can destroy the inner structure of the steel ingot to refine the particles of the steel material so as to eliminate any defect in the microscopic structure of the ingot with the purpose of improving their mechanical property. But the disadvantage of the rolling technique is that the steel ingot may be rolled into very thin sheet but mixed with non-metal materials.