1. The surface roughness is less than turning, milling and grinding.
2. The strength and hardness of the rolled thread surface can be improved due to cold work hardening.
3. The utilization rate of materials is high, the productivity is much higher than that of cutting, and it is easy to realize automation.
4. The life of the rolling die is very long. But rolling thread requires that the hardness of the workpiece material does not exceed HRC40.
5. High precision of blank size is required.
6. the precision and hardness of the rolling die are also high, so it is difficult to manufacture the die.
7. It is not suitable for rolling the thread with asymmetric tooth shape.