Method for producing an internal toothing and component having internal toothing

A method of producing internal gear teeth (2) with deflecting surfaces (5, 6), the internal gear teeth (2) being arranged in a component (1) having an end (1b) and a longitudinal axis (1a), an end face (2a) of the internal gear teeth (2) being axially offset relative to the end (1b) of the component (1) along the longitudinal axis (1a), the end face (2a) of the internal gear teeth (2) being machined using a conical tool (8) that rotates about a tool axis (8a) arranged parallel to the longitudinal axis (1a), and the rotating tool (8) being moved along a circular path coaxial to the longitudinal axis (1a) the method comprising the steps of:

• biasing the tool (8) in along the axis-parallel direction,
• moving the tool (8) along a circular path through a defined circumferential angle until the tool (8) reaches a first circumferential position (P1), and then
• withdrawing the tool (8) parallel to the longitudinal axis;
• and
• re-introducing the tool (8) in the axis-parallel direction and subsequently moving the tool (8) through a defined circumferential angle from an opposite direction to the first circumferential position (P1) such that an intersection edge (7) of the deflecting surfaces (5, 6), produced by machining, being formed on the end face (2a) and being located centrally on a tooth profile (4, 4a, 4b, 4c).

A method of producing internal gear teeth (2) with deflecting surfaces (5, 6) within a cylindrical component (1) that comprises a first axial end (1b) and a longitudinal axis (1a), the internal gear teeth (2) extending axially and having an end face (2a) axially offset from the first axial end (1b) of the cylindrical component (1), the method comprising the steps of:

• machining the cylindrical component (1) with a conical end of a tool (8) rotating about a tool axis (8a) that extends parallel to the longitudinal axis (1a) of the component (1);
• axially biasing the tool (8) along the tool axis (8a) such that the conical end of the tool (8) contacts the end face (2a) of the internal gear teeth (2);
• biasing the tool (8) about a circular path through a defined circumferential angle until the tool (8) reaches a first circumferential position (P1);
• subsequently axially withdrawing the tool (8) parallel to the longitudinal axis (1a) away from the end face (2a) of the internal gear teeth (2);
• axially re-introducing the tool (8) parallel to the longitudinal axis (1a) toward the end face (2a) of the internal gear teeth (2) such that the conical end of the tool (8) contacts the end face (2a) of the internal gear teeth (2);
• biasing the tool (8) about the circular path through a defined circumferential angle from an opposite direction toward the first circumferential position (P1) such that an intersection edge (7) of the deflecting surfaces (5, 6) is produced on the end face (2a) by machining, the intersection edge (7) being located centrally on a tooth profile (4, 4a, 4b, 4c).