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Proceedings Paper

High resolution laser micro sintering / melting using q-switched and high brilliant laser radiation
Author(s): H. Exner; A. Streek
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Paper Abstract

Since the discovery of selective laser sintering/melting, numerous modifications have been made to upgrade or customize this technology for industrial purposes. Laser micro sintering (LMS) is one of those modifications: Powders with particles in the range of a few micrometers are used to obtain products with highly resolved structures. Pulses of a q-switched laser had been considered necessary in order to generate sinter layers from the micrometer scaled metal powders. LMS has been applied with powders from metals as well as from ceramic and cermet feedstock’s to generate micro parts. Recent technological progress and the application of high brilliant continuous laser radiation have now allowed an efficient laser sintering/melting of micrometer scaled metal powders. Thereby it is remarkable that thin sinter layers are generated using high continuous laser power. The principles of the process, the state of the art in LMS concerning its advantages and limitations and furthermore the latest results of the recent development of this technology will be presented. Laser Micro Sintering / Laser Micro Melting (LMM) offer a vision for a new dimension of additive fabrication of miniature and precise parts also with application potential in all engineering fields.

Paper Details

Date Published: 16 March 2015
PDF: 11 pages
Proc. SPIE 9353, Laser 3D Manufacturing II, 93530P (16 March 2015); doi: 10.1117/12.2083777
Show Author Affiliations
H. Exner, Laserinstitut Hochschule Mittweida (Germany)
A. Streek, Laserinstitut Hochschule Mittweida (Germany)

Published in SPIE Proceedings Vol. 9353:
Laser 3D Manufacturing II
Henry Helvajian; Alberto Piqué; Martin Wegener; Bo Gu, Editor(s)

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