Part balancing

A method of forming a balancing scallop within a rotating part, comprising:

• detecting an imbalance in the rotating part;
• calculating dimensions of the balancing scallop to be formed within the rotating part;
• positioning the rotating part relative to a material removal machine;
• starting the material removal machine by causing a tool of the material removal machine to rotate;
• bringing the rotating part and the tool of the material removal machine into engagement with each other;
• moving the tool of the material removal machine and the rotating part closer together along a central axis of the rotating part, and simultaneously moving the tool of the material removal machine and the rotating part relative to one another along a circumferential path about the central axis of the rotating part, and forming a first section of the balancing scallop having a depth that gradually and smoothly transitions from zero at a first distal end of the balancing scallop to a maximum depth;
• holding the tool of the material removal machine and the rotating part stationary relative to each other along the central axis of the rotating part, and simultaneously continuing movement of the tool of the material removal machine and the rotating part relative to one another along a circumferential path about the central axis of the rotating part, and forming a second section of the balancing scallop having a depth of the maximum depth;
• moving the tool of the material removal machine and the rotating part apart along the central axis of the rotating part, and simultaneously continuing movement of the tool of the material removal machine and the rotating part relative to one another along a circumferential path about the central axis of the rotating part, and forming a third section of the balancing scallop having a depth that gradually and smoothly transitions from the maximum depth adjacent the second section to zero at a second distal end of the balancing scallop;
• and
• dis-engaging the rotating part from and the tool of the material removal machine.

A rotating part including a balancing scallop formed therein, comprising:

• a body;
• a balancing scallop formed within an axial surface of the body, the balancing scallop having a radial width, first and second opposing distal ends, a length extending circumferentially around a portion of the axial surface between the first and second distal ends, and first, second and third sections;
• the balancing scallop formed by:
• bringing the rotating part and a tool of a material removal machine into engagement with each other;
• moving the tool of the material removal machine and the rotating part closer together along a central axis of the rotating part, and simultaneously moving the tool of the material removal machine and the rotating part relative to one another along a circumferential path about the central axis of the rotating part, and forming the first section of the balancing scallop having a depth that gradually and smoothly transitions from zero at the first distal end of the balancing scallop to a maximum depth;
• holding the tool of the material removal machine and the rotating part stationary relative to each other along the central axis of the rotating part, and simultaneously continuing movement of the tool of the material removal machine and the rotating part relative to one another along a circumferential path about the central axis of the rotating part, and forming the second section of the balancing scallop having a depth of the maximum depth;
• and
• moving the tool of the material removal machine and the rotating part apart along the central axis of the rotating part, and simultaneously continuing movement of the tool of the material removal machine and the rotating part relative to one another along a circumferential path about the central axis of the rotating part, and forming a third section of the balancing scallop having a depth that gradually and smoothly transitions from the maximum depth adjacent the second section to zero at the second distal end of the balancing scallop.