The universal mathematical models of spatial curved surface in cartesian coordinates with NC-WEDM-HS

Machining spatial curved surface is one of the most challenging technologies in numeric control wire cut electric discharge machining with high speed (NC-WEDM-HS), in order to solve the difficult problems and get high tapered spatial complicated curved surface parts, a machining method is proposed and a universal mathematical models in Cartesian coordinates are derived based on the shaping theory and the composite movements which is composed of a rotation and two sways of the body. A simulation software for verifying the models is programmed, and a good adaptation, a simple structure and a good usability in NC system have been proved by the machining results. All these works provide an effective approach to resolve the problems of cutting spatial curved surface parts by WEDM-HS.