Method for machining of ball tracks of inner races of constant velocity joints

A method for machining of ball tracks of an inner race of a constant velocity joint, said method comprising the steps of:

• providing a power skiving tool including a tool body and a plurality of cutting members arranged along a periphery of said tool body, each of said cutting members including a cutting edge, said power skiving tool further having a first axis of rotation;
• providing a work piece including an outer envelope surface extending along an axis of rotation of the work piece;
• arranging said power skiving tool and said work piece such that said first axis of rotation of said power skiving tool is arranged at a first distance from said axis of rotation of the work piece along a radial direction of said work piece perpendicular to said axis of rotation of the work piece and further such that said first and the work piece axis of rotation are oriented at a first angle relative to one another;
• applying a first rotation to said power skiving tool, said first rotation having a first rotational speed;
• applying a second rotation to said workpiece, said second rotation having a second rotational speed, wherein said first and second rotational speeds are synchronized;
• and
• applying a relative movement between said work piece and said power skiving tool along a direction parallel to said axis of rotation of said work piece, such that the cutting edges of said cutting members engage said outer envelope surface of said work piece by a combined relative translational and rotational movement to machine the ball tracks in said outer envelope surface along said axis of rotation of said work piece.