Vehicle Bumper Reinforcement Bar Forming With Springback Bending

The patent combines multiple bending operations and welding operations into an integrated roll forming process. The metal plate undergoes continuous deformation through a series of rolling stages that simultaneously achieve the desired curved shape and form welded joints, eliminating the need for separate bending and welding steps while maintaining structural integrity

The roll forming process performs preliminary shaping of the metal plate into the final curved configuration before attachment to the bumper. The metal plate is pre-formed with the required geometry and rigidity through controlled rolling deformation, reducing the need for subsequent adjustment and assembly operations

The roll forming process implements continuous deformation of the metal plate through a sequence of rolling stages without interruption. The plate progresses continuously through the forming rolls that progressively bend and shape it into the final curved configuration, eliminating the start-stop nature of traditional multi-step bending operations

The complex bending operation is divided into multiple rolling stages, each responsible for a specific portion of the shape transformation. The metal plate passes through series of rolls that incrementally achieve the desired curvature and geometry, breaking down the complex deformation into manageable sequential steps