The Computer Numerical Control (CNC) fabrication process offers flexible manufacturing. Tooling is mounted on a turret. This turret is mounted on the upper part of the press. The turret travels on lead screws, which travel in the X and Y direction and are computer controlled. Alternatively, the work piece can travel on the lead screws, and move relative to the fixed turret. The tooling is located over the sheet metal, the punch is activated, and performs the operation, and the turret is indexed to the next location of the work piece. After the first stage of tooling is deployed over the entire work piece, the second stage is rotated into place. This entire process is repeated until all the tooling positions of the turret are deployed.
