Method and system for forming a workpiece

A system for shaping a workpiece, the workpiece having a semi-circular base portion, the system comprising:

• a rotatable mounting portion for receiving the workpiece therein, the rotatable mounting portion operable to rotate the workpiece;
• a rotatable grinder positioned proximate to the mounting portion for contacting the workpiece;
• a controller in communication with the mounting portion and the grinder, the controller having a memory with control logic, the control logic including a first control logic for rotating the grinder at a fixed rotational speed in a first direction, a second control logic for rotating the mounting portion in the first direction, a third control logic for positioning the tool in contact with the workpiece at a first portion of the semi-circular base portion of the workpiece, a fourth control logic for rotating the mounting portion at a first rotational speed when the tool contacts the first portion of the semi-circular base portion of the workpiece, and a fifth control logic for rotating the mounting portion at a second rotational speed when the tool contacts a second portion of the semi-circular base portion of the workpiece;
• and
• wherein the first rotational speed and the second rotational speed are different.