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2016 | OriginalPaper | Buchkapitel

Laser Polishing of Additive Manufactured AlSi10Mg Parts with an Oscillating Laser Beam

verfasst von : Jochen Schanz, Markus Hofele, Leonhard Hitzler, Markus Merkel, Harald Riegel

Erschienen in: Machining, Joining and Modifications of Advanced Materials

Verlag: Springer Singapore

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Abstract

Powder-bed based additive manufacturing techniques, such as selective laser melting (SLM), are gaining in importance due to the opportunity to produce highly complex shapes. This offer new construction possibilities in the design. However, the surface of the produced SLM parts exhibit a high roughness which can affect the integrity and geometric tolerance. To reduce the surface roughness and to improve the mechanical properties of the outmost layer, laser polishing by re-melting the surface can be used. The present paper focus on the laser polishing of additive manufactured parts. This investigation contains measurement results of the initial and laser polished surfaces out of AlSi10Mg. The surfaces have been analyzed by roughness spectroscopy and white light interferometry. By utilizing a disk laser with a maximum power of 4 kW in combination with a 1-D scanner system, the initial surface roughness was reduced up to 92 %.

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Titel: Laser Polishing of Additive Manufactured AlSi10Mg Parts with an Oscillating Laser Beam
verfasst von: Jochen Schanz
Markus Hofele
Leonhard Hitzler
Markus Merkel
Harald Riegel
Verlag: Springer Singapore
Buch: Machining, Joining and Modifications of Advanced Materials
Print ISBN: 978-981-10-1081-1

Electronic ISBN: 978-981-10-1082-8

Copyright-Jahr: 2016
DOI: https://doi.org/10.1007/978-981-10-1082-8_16

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