Please use this identifier to cite or link to this item: http://scholarbank.nus.edu.sg/handle/10635/31633
Title: Study and Performance Enhancement of Fast Tool Servo Diamond Turning of Micro-structured Surfaces
Authors: YU DEPING
Keywords: Fast Tool Servo, Diamond Turning, Micro-structured surfaces
Issue Date: 19-Jul-2011
Source: YU DEPING (2011-07-19). Study and Performance Enhancement of Fast Tool Servo Diamond Turning of Micro-structured Surfaces. ScholarBank@NUS Repository.
Abstract: Ultraprecision micro-structured surfaces, such as micro-lens arrays, sinusoidal grid, Fresnel lenses, pyramids array, polygon mirrors, aspheric lenses, multi-focal lenses, have been increasingly used in a range of industries such as optics, semiconductor, precision die and mold, biomedical engineering, etc. Fast tool servo (FTS) diamond turning is a potential process for precision machining of complex micro-structured surfaces with wavelength above tens of microns, which is difficult to be achieved economically by other processes. However, most of the researches in this area have focused on the development of the FTS to obtain higher performance and rarely studied it as a process for ultra-precision machining. This thesis presents the study and performance enhancement of FTS diamond turning of micro-structured surfaces for the best machined surface quality, resulting in a system which is able to select optimal cutting conditions and tool geometry, select the FTS to satisfy the chosen performance indices, generate tool path commands for machining, modify the commands to achieve high tracking performance and characterize the machined surface when given a desired micro-structured surface and material.
URI: http://scholarbank.nus.edu.sg/handle/10635/31633
Appears in Collections:Ph.D Theses (Open)

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