The doors and Windows are cold bent

Cold bending of door and window equipment refers to the processing of metal materials (such as aluminum alloy, steel, etc.) into the required shape and size of door and window equipment through the cold bending process. Cold forming is a non-thermal working method that changes the shape of a metal material without changing its chemical properties by applying an external force to plastically deform it. Cold bending of door and window equipment usually requires the use of special cold bending equipment, such as cold bending machines, cold bending molds, etc. According to the design requirements, the operator places the metal material on the cold bending machine, and by adjusting the machine parameters and process flow, exerts appropriate force and angle to make the metal material cold bending according to the predetermined shape.   Cold bending of window and door equipment has the following advantages:1. High precision: Cold bending processing can achieve high-precision shape and…