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Polishing by laser radiation

: Willenborg, E.; Wissenbach, K.; Poprawe, R.

Poprawe, R. ; Wissenschaftliche Gesellschaft Lasertechnik -WLT-:
Lasers in Manufacturing 2003 : Proceedings of the Second International WLT-Conference on Lasers in Manufacturing 2003
München: AT-Verlag, 2003
ISBN: 3-00-011673-7
International Conference on Lasers in Manufacturing <2, 2003, München>
Conference Paper
Fraunhofer ILT ()
polishing; remelting; finishing; surface treatment; laser

In many branches of industry there is a high demand for automated techniques for polishing of complex-shaped three-dimensional parts. The most important sector is the tooling and moulding industry. In this paper a new laser based polishing technique is presented. In a first step the macro roughness of the surface (e.g. from EDM-processing or milling) is smoothed by a remelting process and in a second step the surface is finished by subjecting the microroughness to a combined ablation and remelting process. Fundamentals of the polishing process as well as possible fields of application such as tool- and mould-making and medical implants are presented.