Rolling process for workpieces

摘要

The workpiece is clamped into a chuck and is rotated while shaped rollers are pressed onto the workpiece to roll it into the required shape. During rolling inductive heating conditions the workpiece prevents cracking etc. The heating is from inductors (20) positioned close to the workpiece, near to the rollers (31). The amount of heating and the heating depth are adjustable. The heating follows a predetermined program dependant on the shape and size of the workpiece. The heating effect can be varied during rolling and can follow the contour of the workpiece. The heating can be AC or DC, with the latter providing a varying effect through the rotation of the workpiece.