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Title: A novel diamond micro-/nano-machining process for the generation of hierarchical micro-/nano-structures
Authors: Zhu, Z
To, S 
Ehmann, KF
Xiao, G
Zhu, W
Keywords: Diamond micro-/nano-machining
Hierarchical micro-/nano-structures
Rotary spatial vibrations
Servo motion
Issue Date: 2016
Publisher: Institute of Physics Publishing
Source: Journal of micromechanics and microengineering, 2016, v. 26, no. 3, 035009 How to cite?
Journal: Journal of micromechanics and microengineering 
Abstract: A new mechanical micro-/nano-machining process that combines rotary spatial vibrations (RSV) of a diamond tool and the servo motions of the workpiece is proposed and applied for the generation of multi-tier hierarchical micro-/nano-structures. In the proposed micro-/nano-machining system, the servo motion, as the primary cutting motion generated by a slow-tool-servo, is adopted for the fine generation of the primary surfaces with complex shapes. The RSV, as the tertiary cutting operation, is superimposed on the secondary fundamental rotary cutting motion to construct secondary nano-structures on the primary surface. Since the RSV system generally works at much higher frequencies and motion resolution than the primary and secondary motions, it leads to an inherent hierarchical cutting architecture. To investigate the machining performance, complex micro-/nano-structures were generated and explored by both numerical simulations and actual cutting tests. Rotary vibrations of the diamond tool at a constant rotational distance offer an inherent constant cutting velocity, leading to the ability for the generation of homogeneous micro-/nano-structures with fixed amplitudes and frequencies of the vibrations, even over large-scale surfaces. Furthermore, by deliberately combining the non-resonant three-axial vibrations and the servo motion, the generation of a variety of micro-/nano-structures with complex shapes and with flexibly tunable feature sizes can be achieved.
ISSN: 0960-1317
DOI: 10.1088/0960-1317/26/3/035009
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