Forging process where the workpiece is fed through two specially shaped rolls to create a long product with varying cross section. Beskrivning The process Heated workpiece, usually a rod of some form, is fed in between two shaping rollers. The grooves in the rollers allow the part to have a variable cross-section optimized for the next operation which can be swaging or machining. Thus effectively minimizing the need for material removal before the completion of the final detail. Roll forging