Title: An investigation on surface generation in ultra-precision raster milling

Authors: S. To; S.J. Wang

Addresses: GH040, G/F, State Key Laboratory in Ultra-Precision Machining Technology, Department of Industrial and Systems Engineering, The Hong Kong Polytechnic University, Hunghom, Kowloon, Hong Kong. ' GH040, G/F, State Key Laboratory in Ultra-Precision Machining Technology, Department of Industrial and Systems Engineering, The Hong Kong Polytechnic University, Hunghom, Kowloon, Hong Kong

Abstract: This paper studied the factors affecting surface roughness in ultra-precision raster milling (UPRM). Through the investigation on the surface generation mechanism, factors including cutting parameters, tool path generation (TPG) and tool geometry are taken into consideration. A series of cutting experiments is conducted to investigate the influences of three factors including feed direction, depth of cut and entry distance on surface roughness profiles and the surface quality of the ultra-precision raster milled surface. The results show that the surface finishing in horizontal cutting is better than that in vertical cutting and the surface roughness in UPRM can be minimised by selecting the optimal values of depth of cut and entry distance.

Keywords: surface roughness; tool path generation; TPG; ultra-precision raster milling; UPRM; ultra-precision machining; nanomanufacturing; nanotechnology; surface quality.

DOI: 10.1504/IJNM.2011.042469

International Journal of Nanomanufacturing, 2011 Vol.7 No.3/4, pp.298 - 310

Received: 08 Dec 2010
Accepted: 15 Mar 2011

Published online: 14 Sep 2011 *

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