Methods of shaping slots with computer numerical controlled machining centers

A method for shaping blind slots in a workpiece comprising:

• providing the workpiece, the workpiece being a casting including a first precursor slot that is cast into the workpiece and a second precursor slot that is cast into the workpiece;
• aligning a single slot broaching tool along the first precursor slot of the workpiece;
• radially stepping the single slot broaching tool into the first precursor slot;
• moving the single slot broaching tool in a linear direction for a first predetermined distance along a length of the first precursor slot and forming a first blind slot;
• rotating at least one of the workpiece and the single slot broaching tool such that the single slot broaching tool is aligned along the second precursor slot of the workpiece;
• radially stepping the single slot broaching tool into the second precursor slot;
• and
• moving the single slot broaching tool in the linear direction for a second predetermined distance along a length of the second precursor slot and forming a second blind slot.