Compared with free forging, die forging and other processes in metal volume plastic forming, roll forging technology has the following characteristics:
High production efficiency. In the process of rough roll forging and forming roll forging, a roll forging cycle usually only takes a few seconds or even a few seconds, which is suitable for the requirements of large-scale production. Compared with processes such as free forging and die forging, it has high production efficiency and stable forming.
The required equipment has a small tonnage and can be used to manufacture large parts. Roll forging is a progressive and continuous local deformation. At each deformation moment, the contact area between the upper and lower molds and the blank is very small. Equipment of the same tonnage can generate greater pressure and have a higher utilization rate of equipment tonnage.
A good working environment. The roll forging process is a gradual and continuous local deformation. The plastic deformation of the blank is carried out under static pressure. Low vibration and noise are beneficial for workers in production.
The mold has low wear and a long service life. The roll forging process is a gradual and continuous local deformation, requiring small deformation force, low friction force, and minimal mold wear; During the roll forging process, the blank undergoes plastic deformation under static pressure, with low impact and long service life of the mold.
The operation is simple and easy to achieve mechanization and automation.
Suitable for plastic deformation processes with reduced cross-sectional area of blanks. From the principle of roll forging deformation, it can be seen that during the deformation process, the length of the blank increases and the cross-sectional area decreases. Such as the elongation of bars, rolling of slabs, and the deformation process of metal volume distribution along the axial direction of bars. Roll forging technology has great advantages in processing axisymmetric long axis parts.
High quality forgings. From the principle of roll forging deformation, it can be seen that during the deformation process, the metal mainly flows along the axial direction of the blank, with less flow in the width direction. Therefore, after roll forging, the roll forging has a good metal streamline and the product has high mechanical properties.
High material utilization rate. The surface roughness value of the roller forging is relatively small, and the calculation of the blank is appropriate, which can achieve zero allowance production and high material utilization rate.