MATEC Web Conf.
Volume 190, 20185th International Conference on New Forming Technology (ICNFT 2018)
|Number of page(s)||7|
|Published online||18 September 2018|
Investigation of a plain ball burnishing process on differently machined Aluminium EN AW 2007 surfaces
Chemnitz University of Technology, Institute for Machine Tools and Production Processes (IWP), Reichenhainer Str. 70, 09126 Chemnitz, Germany
2 Fraunhofer Institute for Machine Tools and Forming Technology IWU, Reichenhainer Str. 88, 09126 Chemnitz, Germany
Corresponding author : firstname.lastname@example.org
Burnishing is an effective chipless finishing process for improving workpiece properties: hardness, vibration resistance and surface quality. The application of this technology is limited to rotationally symmetrical structures of deformable metals. Because of the multiaxial characteristics, the transfer of this force controlled technology on to prismatic shapes requires a comprehensive process development. The main purpose of this paper is the characterization of a plain burnishing process on aluminium EN AW 2007 with a linear moved, spherical diamond tool. The method of design of experiments was used to investigate the influence of different machined surfaces in conjunction with process parameters: burnishing force, burnishing direction, path distance and burnishing speed. FEM simulation was utilized for strain and stress analysis. The experiments show, that unlike the process parameters the initial surface roughness as 3rd order shape deviation does not have a significant influence on the finished surface. Furthermore a completely new surface is created by the process, with properties independent from the initial surface roughness.
Key words: Rolling / Micro forming / Free forming
© The Authors, published by EDP Sciences, 2018
This is an Open Access article distributed under the terms of the Creative Commons Attribution License (http://creativecommons.org/licenses/by/4.0), which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited.
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