Determination of the fundamental dimension development in building direction for laser-sintered parts

Beitrag in einer Fachzeitschrift


Details zur Publikation

Autorinnen und Autoren: Launhardt M, Drummer D
Zeitschrift: Journal of Polymer Engineering
Jahr der Veröffentlichung: 2019
Band: 39
Heftnummer: 2
ISSN: 0334-6447


Abstract

The additive manufacturing process of the laser sintering of polymers (LS) allows the production of complex parts right from CAD data. However, the manufactured parts often show dimensional inaccuracies. In order to fundamentally determine the influencing parameters on the accuracy of LS parts, a hatching specimen, a layer-specimen and defined part geometries are manufactured and subsequently measured. These, combined with a theoretical observation of the layer wise geometry buildup, are used to determine the fundamental portions of the development of dimensions in building direction (z-direction). The results indicated a defined powder adhesion height at the top and the bottom of a melted layer, along with the dependency of melt depth and the hatch number for small structures. Depending on the nominal heights of an LS part, either an oversize or undersize was detected.


FAU-Autorinnen und Autoren / FAU-Herausgeberinnen und Herausgeber

Drummer, Dietmar Prof. Dr.-Ing.
Lehrstuhl für Kunststofftechnik
Launhardt, Martin
Lehrstuhl für Kunststofftechnik


Zitierweisen

APA:
Launhardt, M., & Drummer, D. (2019). Determination of the fundamental dimension development in building direction for laser-sintered parts. Journal of Polymer Engineering, 39(2). https://dx.doi.org/10.1515/polyeng-2018-0204

MLA:
Launhardt, Martin, and Dietmar Drummer. "Determination of the fundamental dimension development in building direction for laser-sintered parts." Journal of Polymer Engineering 39.2 (2019).

BibTeX: 

Zuletzt aktualisiert 2019-08-05 um 11:06