Which one is better, grinding or bending?

Bend. The average salary of polishing masters is 5.9K/month, and the average salary of bending masters is 6.7K/month. From this, it can be seen that bending is better. Bending - The metal sheet first undergoes elastic deformation under the pressure of the upper or lower mold of the bending machine, and then enters plastic deformation. At the beginning of plastic bending, the sheet is freely bent. As the upper or lower mold aligns With the pressure applied on the sheet, the sheet and the inner surface of the V-shaped groove of the lower mold gradually come closer. At the same time, the radius of curvature and the bending arm also gradually become smaller. Pressurization continues until the end of the stroke, so that the upper and lower molds are in full contact with the sheet at three points. , a V-shaped bend is completed at this time.