Shafts are cylindrical objects worn in the middle of bearings or wheels or gears, but a small number are square. A shaft is a mechanical part that supports a rotating part and rotates with it to transmit motion, torque, or bending moment. It is generally a metal round rod, and each segment can have different diameters. The parts of the machine that make the rotary motion are mounted on the shaft. The blank of the shaft is given priority to forgings, followed by steel; Larger sizes or complex structures can consider cast steel or ductile iron. Embossed shaft refers to a process of embossing on a shaft. The embossed shaft is usually made of metal material, and the surface has been specially treated to give it a certain concave and convex pattern or pattern. In textile, printing, papermaking and other industries, embossing shafts are widely used in pattern processing of textiles, paper and other materials to increase the decoration and added value of products. The embossin…