Abstract
A five-axis machining center is noted for its synchronous control capability, making it a feasible tool for quickly and accurately machining complicated three-dimensional surfaces such as propellers and hypoid gears because it is equipped with a direct drive (DD) motor in the rotary axis. The current research work has identified the necessity of improving both the accuracy of the machined shape and the consistency of the free-form machined surface. This study investigated a method for maintaining the feed speed vector at the milling point by controlling two linear axes and the rotary axis of a five-axis machining center to improve the quality of the machined surface considering differences of three axes’s servo characteristics under actual process. As the results, it could be seen that shape error greatly decreased by applying the proposed method based on outside approach path of machining tool. Furthermore, effectiveness of the suggested machining method in this paper was verified by using wireless IoT holder and monitoring machining force.
