The hardness of the polishing wheel is determined by the distance of the suture, and the smaller the suture distance, the higher the hardness of the polishing wheel. In order to make the polishing wheel softer, the polishing wheel should be made with a sufficient distance between the sewing thread and the wheel edge (also not stitched). Polishing large workpieces also uses a polishing wheel with a special air-cooling device.
The polishing wheel can be divided into three ways:
1) Non-stitched cloth wheel. It is made of soft cotton cloth, which is suitable for polishing complex shapes or for fine polishing of small workpieces.
2) Stitching. It is made of coarse cloth, non-woven fabric and fine flat cloth. The stitching can be in the form of concentric spiral and direct radiation. It is better to polish various coatings and simple shapes.
3) Air-cooled cloth wheel. It adopts a 45-degree angle cutting method and has a ring-shaped pleated shape with a metal disc in the middle. It has the characteristics of ventilation and heat dissipation, and it is suitable to polish large workpieces.
