YUHONG GROUP - Alloy Tube Different Production Process of Machining
The main purpose of machining is to bring the material to a specific size. In the process, the mechanical properties of the material are changed. In most cases, machining increases the strength of the material due to work hardening.
1. Thermal processing is mainly hot rolling and forging.
Generally larger sizes (e.g. thick-walled tubes, round bars, plates) are produced in this way. In most cases, this method of processing requires the material to be worked and deformed at high temperatures. Thermal processing performs both work hardening and recrystallisation. As a result, hot working can increase the strength of the material to some extent, but this improvement is relatively limited. When these larger sizes are required to maintain a certain level of strength, the hot-worked condition is a more appropriate choice. It should be noted that the plasticity of the material decreases as the strength is increased.
2. Cold working consists mainly of processes such as cold rolling and cold drawing.
Generally, products with smaller dimensions (e.g. tubes, bars and wires) can be produced by cold working. Cold working involves extruding and deforming the material at room temperature. Since the material does not recrystallise at room temperature, cold working only has a work-hardening effect on the material. The material has a very high strength after cold working. The more the material is cold worked, the higher the strength.
3. Forging involves hammering a material at high temperatures to achieve a specific size and shape.
Forging is also technically a hot process. It is also used to make products of larger dimensions. Like hot working, forging also increases the strength of the material. Generally, the material requires some surface treatment after forging. The dimensional accuracy of forgings is less than that of hot rolling.
YUHONG GROUP - Alloy Tube Different Production Process of Machining
The main purpose of machining is to bring the material to a specific size. In the process, the mechanical properties of the material are changed. In most cases, machining increases the strength of the material due to work hardening.
1. Thermal processing is mainly hot rolling and forging.
Generally larger sizes (e.g. thick-walled tubes, round bars, plates) are produced in this way. In most cases, this method of processing requires the material to be worked and deformed at high temperatures. Thermal processing performs both work hardening and recrystallisation. As a result, hot working can increase the strength of the material to some extent, but this improvement is relatively limited. When these larger sizes are required to maintain a certain level of strength, the hot-worked condition is a more appropriate choice. It should be noted that the plasticity of the material decreases as the strength is increased.
2. Cold working consists mainly of processes such as cold rolling and cold drawing.
Generally, products with smaller dimensions (e.g. tubes, bars and wires) can be produced by cold working. Cold working involves extruding and deforming the material at room temperature. Since the material does not recrystallise at room temperature, cold working only has a work-hardening effect on the material. The material has a very high strength after cold working. The more the material is cold worked, the higher the strength.
3. Forging involves hammering a material at high temperatures to achieve a specific size and shape.
Forging is also technically a hot process. It is also used to make products of larger dimensions. Like hot working, forging also increases the strength of the material. Generally, the material requires some surface treatment after forging. The dimensional accuracy of forgings is less than that of hot rolling.