Share Email Print

Proceedings Paper

Interaction model for near infrared pulsed-laser sintering of metal powders
Author(s): Pascal Fischer; Valerio Romano; Heinz P. Weber
Format Member Price Non-Member Price
PDF $17.00 $21.00
cover GOOD NEWS! Your organization subscribes to the SPIE Digital Library. You may be able to download this paper for free. Check Access

Paper Abstract

The densification processes occurring in metallic powders upon interaction with pulsed laser radiation have been studied experimentally and compared with results obtained from a numerical simulation model. The analysis of the sintered samples shows consolidation features, which are in very good agreement with the model predictions. The limited amount of molten material due to pulsed interaction and the recoil pressure exerted on the powder by the plasma and the ablation plume allow to achieve a predetermined density (or porosity) from less than 60% to more than 90% of the bulk density, depending on the laser parameters and processing steps. A wider range of porosity could be achieved by mixture of the metallic powder with later removable spacers of the desired size.

Paper Details

Date Published: 2 September 2003
PDF: 7 pages
Proc. SPIE 5121, Laser Processing of Advanced Materials and Laser Microtechnologies, (2 September 2003); doi: 10.1117/12.515625
Show Author Affiliations
Pascal Fischer, Univ. Bern (Switzerland)
Valerio Romano, Univ. Bern (Switzerland)
Heinz P. Weber, Univ. Bern (Switzerland)

Published in SPIE Proceedings Vol. 5121:
Laser Processing of Advanced Materials and Laser Microtechnologies
Friedrich H. Dausinger; Vitali I. Konov; Vladimir Yu. Baranov; Vladislav Ya. Panchenko, Editor(s)

© SPIE. Terms of Use
Back to Top