• search hit 69 of 200
Back to Result List

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.

Export metadata

Additional Services

Share in Twitter Search Google Scholar Statistics
Metadaten
Author:Thomas Stichel, Tobias LaumerORCiDGND, Tobias Baumüller, Philipp AmendGND, Stephan Roth
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