Bending refers to the deformation of the steel plate under the action of force. The effect of this force is the final result of the resultant force. It is a stamping process for bending metal sheets, pipes and profiles into workpieces with a certain curvature, shape and size. Bending forming is widely used in the manufacture of high-pressure vessels, boiler drums, boiler tubes, steel plates and ribs of ship hulls, various utensils, instrument components, and cabinet inserts. According to process characteristics, bending can be divided into press bending, roll bending and stretch bending. Press bending is the most commonly used bending method. Most of the equipment used are general mechanical presses or hydraulic presses, but also special bending presses. The commonly used bending equipment is a plate bending machine.