NX CAM is the most extensively developed NC programming system available. Based on years of experience with customers in aerospace and related industries, NX CAM offers efficient, flexible and accurate machining. It supports a range of methods for defining precisely controlled tool paths on complex surfaces, with effective collision and gouge checking.
 

NX CAM supports 2 through 5 axis machining, high speed machining, feature based machining, mill-turn machining and wire EDM.  For companies that don't need the extensive CAD features in NX, CAM Express is a great choice.