Multiaxis machining: PKMs and traditional machining centers

Since the first CNC-type hexapod machine tool prototypes were presented at the 1994 International Machine Tool Show (IMTS) in Chicago, much debate has ensued on whether or not these machine tools will ever reach the place where they challenge traditional machining centers. This paper presents a review of research topics in the field of parallel kinematic machining for manufacturing, as well as a parallel view of the state of the art of traditional multiaxis machining. After discussing similarities as well as differences in issues faced by parallel kinematic machines and traditional machining centers, a survey of existing prototypes is provided.