Title: Comparison of precision hard turning and grinding operations in terms of the topographic analysis of machined surfaces
Authors: Wit Grzesik; Krzysztof Żak
Addresses: Department of Manufacturing Engineering and Production Automation, Opole University of Technology, P.O. Box 321, 45-271 Opole, Poland ' Department of Manufacturing Engineering and Production Automation, Opole University of Technology, P.O. Box 321, 45-271 Opole, Poland
Abstract: This paper presents the comparison of precision hard cutting and abrasive processes in terms of the surface textures produced and their effects on enhancing functional properties. The main objective of such a comparison is to facilitate the decision whether to possibly replace grinding operations by hard turning with low feed rates. The experimental study performed includes hard turning operations with CBN cutting tools and grinding operations using CBN wheels. For this purpose, the stereometric features of turned and ground surfaces with the Sa roughness parameter of about 0.2 μm were compared. Apart from the set of 3D roughness parameters, the motif, fractal and frequency characteristics were analysed.
Keywords: surface texture; surface roughness; precision machining; grinding; hard turning; topographic analysis; machined surfaces; surface quality; CBN cutting tools; CBN grinding; wheels.
International Journal of Surface Science and Engineering, 2016 Vol.10 No.2, pp.179 - 192
Received: 27 Sep 2014
Accepted: 23 Dec 2014
Published online: 11 May 2016 *