Method for the forming manufacturing of a gear toothing and tool device for the calibration of the gear cutting inlet and/or gear cutting outlet

A tool device (100) for calibration of one or more of a gear toothing inlet (221) and a gear toothing outlet (222) of a gear toothing (220) of a metallic workpiece (200), the gear toothing inlet (221) and the gear toothing outlet (222) being spaced apart along an axial direction (L), the tool device (100) comprising:

• a workpiece location (150) for accommodating the workpiece (200);
• an axially movable die (130) movable along the axial direction (L) is configured to selectively engage with the gear toothing (220) on the workpiece (200), the die (130) supporting the gear toothing (220) on the workpiece (200) and predefining a gear tooth shape to be adjusted on the one or more of the gear toothing inlet (221) and the gear toothing outlet (222) during calibration;
• and
• at least one axially movable compression ring (140) movable along the axial direction (L), the at least one axially movable compression ring (140) is configured to calibrate the one or more of the gear toothing inlet (221) and the gear toothing outlet (222) on the workpiece (200) by a compression process, one of the at least one axially movable compression ring (140) is configured to press directly against the axially movable die (130) and an axial end of the gear toothing (220) in the axial direction (L) to compress a gear tooth overhang on the one or more of the gear toothing inlet (221) and the gear toothing outlet (222) formed during forming of the gear toothing (220) such that a maximum axial gear tooth length in the axial direction (L) of the gear toothing (220) is reduced during the compression process.