Powder Layer Preparation Using Vibration-controlled Capillary Steel Nozzles for Additive Manufacturing
- In this report, the dry delivery of polyamide 12 powders by vibrating capillary steel nozzles is investigated and discussed regarding its potential for powder layer preparation in Laser Beam Melting. Therefore, a setup including a steel nozzle assembled on a piezoelectric actuator is presented, which enables the precise control over very small powder quantities by vibration excitation. An analysis reveals that the mass flow through the nozzle can be adjusted by the vibration modes in a certain range depending on the nozzle's specifications, whereas the vibration modes themselves show a complicated behaviour. Using a positioning system in combination with the vibrating nozzle, single-layer patterns consisting of polyamide 12 are produced and characterized regarding surface homogeneity and selectivity using a laser stripe sensor.
Author: | Thomas Stichel, Tobias LaumerORCiDGND, Tobias Baumüller, Philipp AmendGND, Stephan Roth |
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DOI: | https://doi.org/10.1016/j.phpro.2014.08.158 |
ISSN: | 1875-3892 |
ISSN: | 1875-3884 |
Parent Title (English): | Physics Procedia |
Publisher: | Elsevier |
Document Type: | Article |
Language: | English |
Year of first Publication: | 2014 |
Release Date: | 2022/07/14 |
Tag: | additive manufacturing; dry powder delivery; multi-material deposition; polyamide 12; vibrating nozzle |
Volume: | 56 |
First Page: | 157 |
Last Page: | 166 |
Institutes: | Fakultät Maschinenbau |
Fakultät Maschinenbau / Labor Additive and Intelligent Manufacturing for Sustainability (AIMS) | |
Begutachtungsstatus: | peer-reviewed |
Publication: | Externe Publikationen |
OpenAccess Publikationsweg: | Gold Open Access- Erstveröffentlichung in einem/als Open-Access-Medium |
research focus: | Produktion und Systeme |
Licence (German): | Creative Commons - CC BY-NC-ND - Namensnennung - Nicht kommerziell - Keine Bearbeitungen 3.0 International |