Rollex Dies and Spline Rolling Dies with constant outer Diameter have been developed to coldform splines with CNC-machines (e.g. Rollex Series) - Spline Rolling dies with configurations depending on customer demand.
Advantage of Rollex Dies compared to Incremental Rolling dies is the unlimited number of cold forming steps. While splines made by Incremental Rolling Dies or Racks have to be formed within one Rotation (or stroke), Rollex Dies allow a flexible feeding process that is only controlled and limited by NC-axes of the machine. This leads to new possibilities to form high modules, form splines on hollow shape parts and reach new levels of quality.
Additionally Rollex Dies can be used for reversing processes. A process that includes the change of rotation direction one or more times to calibrate both tooth flanks in order to optimize quality or to form special elements like assembly chamfers.
Rollex Dies summary