Magnetic Levitation and Rotation for Feasibility of Free-Form Machining

Abstract:

This paper presents a new transformative manufacturing methodology for free-form machining. An experimental prototype machine is constructed to levitate and rotate an object attached with sharp edges, which act as a cutter for the purpose of performing machining processes. This device aims to lead to a technological breakthrough, overcoming the limitation of the workpiece features, and achieve greater free-form machining capability. The construction of curved holes and interior surfaces are constrained by the geometry of the machine tool. The proposed concept creates a new device that uses a magnetic field generator as a base. It is loaded with a constant power imposing a vertical physical force to balance gravity and stabilize the cutting tool. With the uniqueness of a preferred orientation between the tool and the base, a rotating surface placed below the base permits the rotation of the cutting tool in order to achieve desired tool rotation speed. A smooth and controlled cut is achieved on a soft material. The result shows the feasibility of the device to achieve similar outcomes as a machine tool.

• Periodical: Applied Mechanics and Materials (Volumes 496-500)
• Pages: 1048-1051
• DOI: https://doi.org/10.4028/www.scientific.net/AMM.496-500.1048
• Online since: January 2014
• Authors: Alexander H. Shih, Steven Y. Liang
• Keywords: Freeform, Levitation, Transformative Manufacturing

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