Design of an ultra-precision machine tool for machining microstructures of laser fusion capsule
by Guoan Hou; Tao Sun
International Journal of Nanomanufacturing (IJNM), Vol. 7, No. 3/4, 2011

Abstract: Machining the required microstructure on the laser fusion capsule is needed in the study of inertial confinement fusion. Ultra-precision single point diamond turning is the most effective method of machining the microstructures on the laser fusion capsule. To this end, an ultra-precision machine tool is developed. Structure, design parameters of each moving axis and characteristic analyses of the machine tool are presented. The ultra-precision machine tool is mainly composed of machine base, aerostatic spindle, and X-axis hydrostatic slide and Z-axis hydrostatic slide. The whole structure of the ultra-precision machine tool is configured as a 'T' type. The aerostatic spindle is driven by brushless frameless motors, with vacuum chuck to provide a flat surface for mounting the workpiece. Hydrostatic bearings and linear motor direct-drive technology have been used on the two linear axes. To analyse and optimise the static and dynamic performance of the entire machine tool, the modelling and simulation process of the ultra-precision machine tool, using the finite element analysis method, is presented.

Online publication date: Sat, 07-Mar-2015

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