Tube bending is a process in which metal tubes are bent into specific angles and shapes based on design requirements. It is commonly used in automotive exhaust systems, bicycle frames, furniture, and mechanical piping. The main bending methods include roll bending (suitable for large radii), press bending (simple structure), and mandrel bending (prevents tube wall deformation). Key factors such as tube diameter, material, bending radius, and springback must be considered to avoid flattening, wrinkling, or cracking. High-quality bending enhances the structural integrity and appearance of the tube, improving assembly efficiency.