---
_id: '63512'
abstract:
- lang: eng
text: "The state of the art shows that PBF-LB/M offers great potential for pressure-loaded
parts, with significant weight reductions and simultaneous optimization of flow
resistance. This study is aimed at applying existing calculation methods for pressure-loaded
parts to additively manufactured pipe structures, considering the two materials
EN AC-43000 (3.2381, AlSi10Mg) and AISI 316L (1.4404, X2CrNiMo17-12-2). For this
purpose, systematic tensile tests are carried out for both materials. In addition,
a statistical evaluation is performed to determine the design-relevant strength
characteristics with a survival probability Ps of 97.5 % for both materials in
the as-built and heat-treated condition.\r\nPipe specimens are manufactured, half
of which are heat treated, geometrically measured and then subjected to a burst
pressure test to experimentally determine the failure-critical internal pressure.
These results are compared with calculated burst pressures. The calculations are
based on the application-relevant methods identified in this study, considering
the strength values determined for the respective material condition. This comparison
is used to assess the suitability of the calculation methods for additively manufactured
pipe structures, based on the materials investigated."
article_number: '105753'
author:
- first_name: Thorsten
full_name: Koers, Thorsten
id: '38077'
last_name: Koers
- first_name: Balázs
full_name: Magyar, Balázs
id: '97759'
last_name: Magyar
- first_name: Christian
full_name: Bödger, Christian
id: '93904'
last_name: Bödger
- first_name: Thomas
full_name: Tröster, Thomas
id: '553'
last_name: Tröster
citation:
ama: Koers T, Magyar B, Bödger C, Tröster T. Analytical and experimental determination
of the failure-critical pressure of pipe structures manufactured by PBF-LB/M.
International Journal of Pressure Vessels and Piping. Published online
2026. doi:10.1016/j.ijpvp.2026.105753
apa: Koers, T., Magyar, B., Bödger, C., & Tröster, T. (2026). Analytical and
experimental determination of the failure-critical pressure of pipe structures
manufactured by PBF-LB/M. International Journal of Pressure Vessels and Piping,
Article 105753. https://doi.org/10.1016/j.ijpvp.2026.105753
bibtex: '@article{Koers_Magyar_Bödger_Tröster_2026, title={Analytical and experimental
determination of the failure-critical pressure of pipe structures manufactured
by PBF-LB/M}, DOI={10.1016/j.ijpvp.2026.105753},
number={105753}, journal={International Journal of Pressure Vessels and Piping},
publisher={Elsevier BV}, author={Koers, Thorsten and Magyar, Balázs and Bödger,
Christian and Tröster, Thomas}, year={2026} }'
chicago: Koers, Thorsten, Balázs Magyar, Christian Bödger, and Thomas Tröster. “Analytical
and Experimental Determination of the Failure-Critical Pressure of Pipe Structures
Manufactured by PBF-LB/M.” International Journal of Pressure Vessels and Piping,
2026. https://doi.org/10.1016/j.ijpvp.2026.105753.
ieee: 'T. Koers, B. Magyar, C. Bödger, and T. Tröster, “Analytical and experimental
determination of the failure-critical pressure of pipe structures manufactured
by PBF-LB/M,” International Journal of Pressure Vessels and Piping, Art.
no. 105753, 2026, doi: 10.1016/j.ijpvp.2026.105753.'
mla: Koers, Thorsten, et al. “Analytical and Experimental Determination of the Failure-Critical
Pressure of Pipe Structures Manufactured by PBF-LB/M.” International Journal
of Pressure Vessels and Piping, 105753, Elsevier BV, 2026, doi:10.1016/j.ijpvp.2026.105753.
short: T. Koers, B. Magyar, C. Bödger, T. Tröster, International Journal of Pressure
Vessels and Piping (2026).
date_created: 2026-01-07T08:39:04Z
date_updated: 2026-01-14T11:56:01Z
department:
- _id: '146'
- _id: '9'
- _id: '624'
- _id: '149'
- _id: '321'
doi: 10.1016/j.ijpvp.2026.105753
keyword:
- PBF-LB/M
- Pipe structures
- Strength assessment
- Burst pressure test
- Geometrical deviations
language:
- iso: eng
main_file_link:
- open_access: '1'
url: https://doi.org/10.1016/j.ijpvp.2026.105753
oa: '1'
publication: International Journal of Pressure Vessels and Piping
publication_identifier:
issn:
- 0308-0161
publication_status: published
publisher: Elsevier BV
quality_controlled: '1'
status: public
title: Analytical and experimental determination of the failure-critical pressure
of pipe structures manufactured by PBF-LB/M
type: journal_article
user_id: '97759'
year: '2026'
...
---
_id: '65482'
author:
- first_name: Fabian
full_name: Hüwel, Fabian
last_name: Hüwel
citation:
ama: Hüwel F. Untersuchung Der Einflussfaktoren Auf Die Recyclingfähigkeit von
Flammgeschütztem Polyamid 12-Pulver Beim Selektiven Lasersintern (Studienarbeit).;
2026.
apa: Hüwel, F. (2026). Untersuchung der Einflussfaktoren auf die Recyclingfähigkeit
von flammgeschütztem Polyamid 12-Pulver beim selektiven Lasersintern (Studienarbeit).
bibtex: '@book{Hüwel_2026, title={Untersuchung der Einflussfaktoren auf die Recyclingfähigkeit
von flammgeschütztem Polyamid 12-Pulver beim selektiven Lasersintern (Studienarbeit)},
author={Hüwel, Fabian}, year={2026} }'
chicago: Hüwel, Fabian. Untersuchung Der Einflussfaktoren Auf Die Recyclingfähigkeit
von Flammgeschütztem Polyamid 12-Pulver Beim Selektiven Lasersintern (Studienarbeit),
2026.
ieee: F. Hüwel, Untersuchung der Einflussfaktoren auf die Recyclingfähigkeit
von flammgeschütztem Polyamid 12-Pulver beim selektiven Lasersintern (Studienarbeit).
2026.
mla: Hüwel, Fabian. Untersuchung Der Einflussfaktoren Auf Die Recyclingfähigkeit
von Flammgeschütztem Polyamid 12-Pulver Beim Selektiven Lasersintern (Studienarbeit).
2026.
short: F. Hüwel, Untersuchung Der Einflussfaktoren Auf Die Recyclingfähigkeit von
Flammgeschütztem Polyamid 12-Pulver Beim Selektiven Lasersintern (Studienarbeit),
2026.
date_created: 2026-04-22T08:03:46Z
date_updated: 2026-04-22T08:04:02Z
department:
- _id: '150'
- _id: '624'
- _id: '9'
language:
- iso: eng
status: public
supervisor:
- first_name: Hans-Joachim
full_name: Schmid, Hans-Joachim
id: '464'
last_name: Schmid
orcid: 000-0001-8590-1921
- first_name: Steffen
full_name: Jesinghausen, Steffen
id: '3959'
last_name: Jesinghausen
orcid: https://orcid.org/0000-0003-2611-5298
- first_name: Fabian
full_name: Neitzel, Fabian
id: '72307'
last_name: Neitzel
orcid: '0009-0004-8412-3645 '
title: Untersuchung der Einflussfaktoren auf die Recyclingfähigkeit von flammgeschütztem
Polyamid 12-Pulver beim selektiven Lasersintern (Studienarbeit)
type: mastersthesis
user_id: '72307'
year: '2026'
...
---
_id: '61271'
author:
- first_name: Cedric
full_name: Tschöpe, Cedric
last_name: Tschöpe
citation:
ama: 'Tschöpe C. Entwicklung flammgeschützter Kunststoffpulver für das Lasersintern:
Einfluss von Phosphor-, Füllstoffanteilen und Belichtungsparametern.; 2025.'
apa: 'Tschöpe, C. (2025). Entwicklung flammgeschützter Kunststoffpulver für das
Lasersintern: Einfluss von Phosphor-, Füllstoffanteilen und Belichtungsparametern.'
bibtex: '@book{Tschöpe_2025, title={Entwicklung flammgeschützter Kunststoffpulver
für das Lasersintern: Einfluss von Phosphor-, Füllstoffanteilen und Belichtungsparametern},
author={Tschöpe, Cedric}, year={2025} }'
chicago: 'Tschöpe, Cedric. Entwicklung flammgeschützter Kunststoffpulver für
das Lasersintern: Einfluss von Phosphor-, Füllstoffanteilen und Belichtungsparametern,
2025.'
ieee: 'C. Tschöpe, Entwicklung flammgeschützter Kunststoffpulver für das Lasersintern:
Einfluss von Phosphor-, Füllstoffanteilen und Belichtungsparametern. 2025.'
mla: 'Tschöpe, Cedric. Entwicklung flammgeschützter Kunststoffpulver für das
Lasersintern: Einfluss von Phosphor-, Füllstoffanteilen und Belichtungsparametern.
2025.'
short: 'C. Tschöpe, Entwicklung flammgeschützter Kunststoffpulver für das Lasersintern:
Einfluss von Phosphor-, Füllstoffanteilen und Belichtungsparametern, 2025.'
date_created: 2025-09-15T08:11:45Z
date_updated: 2025-10-01T08:53:45Z
department:
- _id: '150'
- _id: '624'
- _id: '9'
language:
- iso: ger
status: public
supervisor:
- first_name: Hans-Joachim
full_name: Schmid, Hans-Joachim
id: '464'
last_name: Schmid
orcid: 000-0001-8590-1921
- first_name: Steffen
full_name: Jesinghausen, Steffen
id: '3959'
last_name: Jesinghausen
orcid: https://orcid.org/0000-0003-2611-5298
- first_name: Fabian
full_name: Neitzel, Fabian
id: '72307'
last_name: Neitzel
orcid: '0009-0004-8412-3645 '
title: 'Entwicklung flammgeschützter Kunststoffpulver für das Lasersintern: Einfluss
von Phosphor-, Füllstoffanteilen und Belichtungsparametern'
type: mastersthesis
user_id: '72307'
year: '2025'
...
---
_id: '61485'
author:
- first_name: Thomas
full_name: Frye, Thomas
last_name: Frye
citation:
ama: Frye T. Untersuchung Der Wechselwirkungen Zwischen Aluminiumdiethylphosphinat
Und Zinkbasierten Füllstoffen Als Synergistische Flammschutzmittel in Polyamid
12 Für Das Selektive Lasersintern.; 2025.
apa: Frye, T. (2025). Untersuchung der Wechselwirkungen zwischen Aluminiumdiethylphosphinat
und zinkbasierten Füllstoffen als synergistische Flammschutzmittel in Polyamid
12 für das selektive Lasersintern.
bibtex: '@book{Frye_2025, title={Untersuchung der Wechselwirkungen zwischen Aluminiumdiethylphosphinat
und zinkbasierten Füllstoffen als synergistische Flammschutzmittel in Polyamid
12 für das selektive Lasersintern}, author={Frye, Thomas}, year={2025} }'
chicago: Frye, Thomas. Untersuchung Der Wechselwirkungen Zwischen Aluminiumdiethylphosphinat
Und Zinkbasierten Füllstoffen Als Synergistische Flammschutzmittel in Polyamid
12 Für Das Selektive Lasersintern, 2025.
ieee: T. Frye, Untersuchung der Wechselwirkungen zwischen Aluminiumdiethylphosphinat
und zinkbasierten Füllstoffen als synergistische Flammschutzmittel in Polyamid
12 für das selektive Lasersintern. 2025.
mla: Frye, Thomas. Untersuchung Der Wechselwirkungen Zwischen Aluminiumdiethylphosphinat
Und Zinkbasierten Füllstoffen Als Synergistische Flammschutzmittel in Polyamid
12 Für Das Selektive Lasersintern. 2025.
short: T. Frye, Untersuchung Der Wechselwirkungen Zwischen Aluminiumdiethylphosphinat
Und Zinkbasierten Füllstoffen Als Synergistische Flammschutzmittel in Polyamid
12 Für Das Selektive Lasersintern, 2025.
date_created: 2025-10-01T08:55:57Z
date_updated: 2025-10-01T08:56:00Z
department:
- _id: '150'
- _id: '624'
- _id: '9'
language:
- iso: eng
status: public
supervisor:
- first_name: Hans-Joachim
full_name: Schmid, Hans-Joachim
id: '464'
last_name: Schmid
orcid: 000-0001-8590-1921
- first_name: Steffen
full_name: Jesinghausen, Steffen
id: '3959'
last_name: Jesinghausen
orcid: https://orcid.org/0000-0003-2611-5298
- first_name: Fabian
full_name: Neitzel, Fabian
id: '72307'
last_name: Neitzel
orcid: '0009-0004-8412-3645 '
title: Untersuchung der Wechselwirkungen zwischen Aluminiumdiethylphosphinat und zinkbasierten
Füllstoffen als synergistische Flammschutzmittel in Polyamid 12 für das selektive
Lasersintern
type: mastersthesis
user_id: '72307'
year: '2025'
...
---
_id: '50816'
author:
- first_name: Lars
full_name: Hücker, Lars
last_name: Hücker
citation:
ama: 'Hücker L. Stickstoff basierte Flammschutzmittel für das Lasersintern: Optimierung
und Analyse der Recyclingfähigkeit (Studienarbeit).; 2024.'
apa: 'Hücker, L. (2024). Stickstoff basierte Flammschutzmittel für das Lasersintern:
Optimierung und Analyse der Recyclingfähigkeit (Studienarbeit).'
bibtex: '@book{Hücker_2024, title={Stickstoff basierte Flammschutzmittel für das
Lasersintern: Optimierung und Analyse der Recyclingfähigkeit (Studienarbeit)},
author={Hücker, Lars}, year={2024} }'
chicago: 'Hücker, Lars. Stickstoff basierte Flammschutzmittel für das Lasersintern:
Optimierung und Analyse der Recyclingfähigkeit (Studienarbeit), 2024.'
ieee: 'L. Hücker, Stickstoff basierte Flammschutzmittel für das Lasersintern:
Optimierung und Analyse der Recyclingfähigkeit (Studienarbeit). 2024.'
mla: 'Hücker, Lars. Stickstoff basierte Flammschutzmittel für das Lasersintern:
Optimierung und Analyse der Recyclingfähigkeit (Studienarbeit). 2024.'
short: 'L. Hücker, Stickstoff basierte Flammschutzmittel für das Lasersintern: Optimierung
und Analyse der Recyclingfähigkeit (Studienarbeit), 2024.'
date_created: 2024-01-24T09:27:39Z
date_updated: 2024-02-20T07:07:22Z
department:
- _id: '150'
- _id: '219'
- _id: '624'
- _id: '9'
language:
- iso: ger
status: public
supervisor:
- first_name: Hans-Joachim
full_name: Schmid, Hans-Joachim
id: '464'
last_name: Schmid
orcid: 000-0001-8590-1921
- first_name: Steffen
full_name: Jesinghausen, Steffen
id: '3959'
last_name: Jesinghausen
orcid: https://orcid.org/0000-0003-2611-5298
- first_name: Fabian
full_name: Neitzel, Fabian
id: '72307'
last_name: Neitzel
orcid: '0009-0004-8412-3645 '
title: 'Stickstoff basierte Flammschutzmittel für das Lasersintern: Optimierung und
Analyse der Recyclingfähigkeit (Studienarbeit)'
type: mastersthesis
user_id: '72307'
year: '2024'
...
---
_id: '53529'
abstract:
- lang: eng
text: The Fused Filament Fabrication (FFF) process is increasingly used for the
manufacturing of individualized and complex structures, which continuously results
in new requirements regarding the material properties. A characteristic material
property for polymers is the low thermal conductivity. However, for specific applications,
such as additively manufactured injection molding tool inserts, increased thermal
conductivity is advantageous. In this study, the influence of fillers of different
types, shapes and sizes on the resulting thermal conductivity of compounds is
investigated. The aim is to analyze the effects of the fillers, considering the
FFF-typical strand structure. The first step is to characterize the fillers in
terms of shape and size. Based on this, the resulting thermal conductivity of
specimens manufactured in the FFF process for different build orientations is
specifically examined and compared to injection molding. This ensures that the
process- and material-related anisotropy of the specimens is considered in the
analysis. For the evaluation, a methodology is developed to be applied in Laser
Flash Analysis (LFA), which allows the results to be evaluated despite the characteristic
FFF surface structure. For the final visualization of the influence of the particle
size on the particle orientation, Scanning Electron Microscopy (SEM) images of
the relevant polymer compounds are made. The investigations provide a data basis
regarding the influence of the particle type, shape and size on the thermal conductivity
as well as for the requirement-oriented selection of fillers for processing thermally
conductive polymer compounds in the FFF process.
author:
- first_name: Elmar
full_name: Moritzer, Elmar
id: '20531'
last_name: Moritzer
- first_name: Christian Lennart
full_name: Elsner, Christian Lennart
id: '70729'
last_name: Elsner
citation:
ama: 'Moritzer E, Elsner CL. Evaluation of the Influence of Particle Type, Shape
and Size on the Thermal Conductivity of Filled Polymers in the Fused Filament
Fabrication Process. In: ; 2024.'
apa: Moritzer, E., & Elsner, C. L. (2024). Evaluation of the Influence of
Particle Type, Shape and Size on the Thermal Conductivity of Filled Polymers in
the Fused Filament Fabrication Process. Annual Technical Conference of the
Society of Plastics Engineers (ANTEC 2024), St. Louis.
bibtex: '@inproceedings{Moritzer_Elsner_2024, title={Evaluation of the Influence
of Particle Type, Shape and Size on the Thermal Conductivity of Filled Polymers
in the Fused Filament Fabrication Process}, author={Moritzer, Elmar and Elsner,
Christian Lennart}, year={2024} }'
chicago: Moritzer, Elmar, and Christian Lennart Elsner. “Evaluation of the Influence
of Particle Type, Shape and Size on the Thermal Conductivity of Filled Polymers
in the Fused Filament Fabrication Process,” 2024.
ieee: E. Moritzer and C. L. Elsner, “Evaluation of the Influence of Particle Type,
Shape and Size on the Thermal Conductivity of Filled Polymers in the Fused Filament
Fabrication Process,” presented at the Annual Technical Conference of the Society
of Plastics Engineers (ANTEC 2024), St. Louis, 2024.
mla: Moritzer, Elmar, and Christian Lennart Elsner. Evaluation of the Influence
of Particle Type, Shape and Size on the Thermal Conductivity of Filled Polymers
in the Fused Filament Fabrication Process. 2024.
short: 'E. Moritzer, C.L. Elsner, in: 2024.'
conference:
end_date: 2024-03-07
location: St. Louis
name: Annual Technical Conference of the Society of Plastics Engineers (ANTEC 2024)
start_date: 2024-03-04
date_created: 2024-04-16T07:25:06Z
date_updated: 2024-04-16T07:29:22Z
department:
- _id: '624'
- _id: '367'
- _id: '321'
- _id: '9'
language:
- iso: eng
status: public
title: Evaluation of the Influence of Particle Type, Shape and Size on the Thermal
Conductivity of Filled Polymers in the Fused Filament Fabrication Process
type: conference
user_id: '70729'
year: '2024'
...
---
_id: '56832'
author:
- first_name: David
full_name: Scharwald, David
last_name: Scharwald
citation:
ama: 'Scharwald D. Intumeszierende Flammschutzmittel Im Lasersinter-Verfahren:
Optimierung Des Brandschutzes, Der Mechanischen Eigenschaften Und Analyse Der
Recyclingfähigkeit (Studienarbeit).; 2024.'
apa: 'Scharwald, D. (2024). Intumeszierende Flammschutzmittel im Lasersinter-Verfahren:
Optimierung des Brandschutzes, der mechanischen Eigenschaften und Analyse der
Recyclingfähigkeit (Studienarbeit).'
bibtex: '@book{Scharwald_2024, title={Intumeszierende Flammschutzmittel im Lasersinter-Verfahren:
Optimierung des Brandschutzes, der mechanischen Eigenschaften und Analyse der
Recyclingfähigkeit (Studienarbeit)}, author={Scharwald, David}, year={2024} }'
chicago: 'Scharwald, David. Intumeszierende Flammschutzmittel Im Lasersinter-Verfahren:
Optimierung Des Brandschutzes, Der Mechanischen Eigenschaften Und Analyse Der
Recyclingfähigkeit (Studienarbeit), 2024.'
ieee: 'D. Scharwald, Intumeszierende Flammschutzmittel im Lasersinter-Verfahren:
Optimierung des Brandschutzes, der mechanischen Eigenschaften und Analyse der
Recyclingfähigkeit (Studienarbeit). 2024.'
mla: 'Scharwald, David. Intumeszierende Flammschutzmittel Im Lasersinter-Verfahren:
Optimierung Des Brandschutzes, Der Mechanischen Eigenschaften Und Analyse Der
Recyclingfähigkeit (Studienarbeit). 2024.'
short: 'D. Scharwald, Intumeszierende Flammschutzmittel Im Lasersinter-Verfahren:
Optimierung Des Brandschutzes, Der Mechanischen Eigenschaften Und Analyse Der
Recyclingfähigkeit (Studienarbeit), 2024.'
date_created: 2024-10-31T07:37:16Z
date_updated: 2024-10-31T07:37:26Z
department:
- _id: '150'
- _id: '624'
- _id: '9'
language:
- iso: eng
status: public
supervisor:
- first_name: Hans-Joachim
full_name: Schmid, Hans-Joachim
id: '464'
last_name: Schmid
orcid: 000-0001-8590-1921
- first_name: Steffen
full_name: Jesinghausen, Steffen
id: '3959'
last_name: Jesinghausen
orcid: https://orcid.org/0000-0003-2611-5298
- first_name: Fabian
full_name: Neitzel, Fabian
id: '72307'
last_name: Neitzel
orcid: '0009-0004-8412-3645 '
title: 'Intumeszierende Flammschutzmittel im Lasersinter-Verfahren: Optimierung des
Brandschutzes, der mechanischen Eigenschaften und Analyse der Recyclingfähigkeit
(Studienarbeit)'
type: mastersthesis
user_id: '72307'
year: '2024'
...
---
_id: '59131'
abstract:
- lang: eng
text: 'Füllstoffe erhöhen die Wärmeleitfähigkeit von im Fused Filament Fabrication
(FFF) Verfahren hergestellten Strukturen. Neben der Füllstoffart ist dabei der
Füllstoffvolumenanteil relevant. Der maximal verarbeitbare Füllstoffanteil ist
hier gegenüber vergleichbaren Spritzgussmaterialien reduziert. An der Kunststofftechnik
Paderborn (KTP) wurde untersucht, welchen Einfluss spezifische Füllstoffe auf
die Materialeigenschaften haben. Die additive Fertigung (AM) gewinnt durch stetig
steigende Anforderungen an die Bauteilkomplexität und Fertigungsflexibilität nicht
nur im Prototypenbau an Bedeutung [1]. Eines der am weitesten verbreiteten additiven
Fertigungsverfahren ist dabei das Fused Filament Fabrication (FFF) Verfahren [2].
Bei diesem Verfahren wird ein Kunststofffilament in eine temperierte Düse gefördert,
dort aufgeschmolzen und in einer charakteristischen, näherungsweise elliptischen
Stranggeometrie ausgetragen. Durch die Verfahrbewegung der Plastifiziereinheit
und der Bauplattform können dreidimensionale Strukturen gefertigt werden [3].
Das FFF-Verfahren zeichnet sich unter anderem durch die Verarbeitung einer großen
Bandbreite an thermoplastischen Kunststoffen aus [4]. Dies ermöglicht eine anwendungsspezifische
Materialauswahl. In diesem Zusammenhang stellt auch die Modifizierung mit Füllstoffen
eine Möglichkeit dar, die Materialeigenschaften gezielt einzustellen. Die Füllstoffe
können dabei nach dem jeweiligen Aspektverhältnis in Kugeln, Plättchen oder Fasern
unterteilt werden [5]. Die Steigerung der Wärmeleitfähigkeit von im FFF-Verfahren
hergestellten Strukturen ist aktuell Stand der Forschung, gewinnt jedoch vor dem
Hintergrund der aktuellen Herausforderungen, z. B. in der Elektrotechnik, an Bedeutung
[6]. Die Kunststofftechnik Paderborn (KTP) befasst sich am Direct Manufacturing
Research Center (DMRC) – Academic derzeit mit der Entwicklung und Verarbeitung
wärmeleitfähiger Kunststoffe für das FFF-Verfahren. Der Fokus liegt dabei auf
den material- und prozessseitigen Einflüssen auf die Materialeigenschaften. Für
die Erzielung hoher Wärmeleitfähigkeiten sind dabei die Wahl der Füllstoffart
und des Füllstoffvolumenanteils hervorzuheben. Kenntnisse über die Auswirkungen
der Füllstoffzugabe und dem Zusammenspiel zwischen den mechanischen Eigenschaften
und der Wärmeleitfähigkeit sind für die anwendungsgerechte Bauteilauslegung essenziell.
Das Vorgehen Zur Analyse der Wärmeleitfähigkeit wurde eine am DMRC – Academic
entwickelte Methode verwendet. Diese basiert auf der Fertigung von zylindrischen
Probekörpern, welche im FFF-Verfahren entlang der Längsachse parallel zu den drei
Koordinatenrichtungen X, Y und Z orientiert gefertigt werden. Im Anschluss werden
die Probekörper spanend auf das für die Messung erforderliche Maß nachbearbeitet.
Dadurch können fertigungsbedingte Einflüsse auf die Geometrie und Oberflächengüte
reduziert und damit die Messgenauigkeit erhöht werden (Bild 2). Durch die Fertigung
von drei unterschiedlichen Orientierungen kann weiterhin eine resultierende Anisotropie
bewertet werden. Die auf einem Doppelschneckenextruder (Thermo Fisher Process11)
hergestellten Filamente wurden nachfolgend mit einem Gewo HTP260 (Gewo Feinmechanik)
verarbeitet. Die entsprechenden FFF-Prozessparameter sind in Tabelle 1 dargestellt.
Dabei ist anzumerken, dass eine Bauraumtemperierung im Allgemeinen und der auf
120 °C beheizte Bauraum für die Verarbeitung der betrachteten Materialien im Speziellen
zur prozesssicheren FFF-Fertigung unerlässlich sind. Die Analyse der Wärmeleitfähigkeit
erfolgte schließlich mittels der Laser-Flash-Analyse (LFA) (Netzsch LFA 467 HyperFlash)
entsprechend der DIN EN ISO 22007-4 [7]. Für die Bewertung der mechanischen Eigenschaften
wurden Probekörper entsprechend der DIN EN ISO 527-2 Typ 1BA unter Verwendung
einer Kolben-Spritzgussmaschine (Thermo Fisher Mini Jet Pro) gefertigt und mit
einer Zugprüfmaschine (Zwick/Roell ProLine Z 010) geprüft, um den grundlegenden
Füllstoffeinfluss bewerten zu können [8]. Für die Untersuchungen wurde ein Kunststoff-Compound
basierend auf Polybutylenterephthalat (PBT) ohne (PBTx) und mit (PBTxa) Verarbeitungshilfe
verwendet. Als Füllstoffe kamen zwei wärmeleitfähige plättchenförmige Füllstoffe
(Bezeichnung: F1 und F2) zur Anwendung, welche einen mittleren Partikeldurchmesser
(d50) für F1 von 5,0 µm und für F2 von 7,9 µm aufweisen. Ergebnisse der Zugversuche
Die Auswertung der mechanischen Eigenschaften zeigt den Einfluss des Füllstoffvolumenanteils
anhand des Elastizitätsmoduls und der Bruchdehnung auf (Bild 3). Die resultierende
Festigkeit wird durch die geringe Verstärkungswirkung der Plättchen hingegen nur
geringfügig beeinflusst und ist folglich nicht gesondert aufgeführt. Im Gegensatz
dazu erhöht sich die Steifigkeit mit steigendem Füllstoffvolumenanteil, was auf
den erhöhten E-Modul der Füllstoffe gegenüber der Kunststoffmatrix zurückzuführen
ist. So kann durch die Füllstoffzugabe mit einem Volumenanteil in Höhe von 22
{%} der E-Modul für das Material PBTxa-F1 gegenüber der reinen Kunststoffmatrix
um den Faktor 2,7 gesteigert werden. Hingegen nimmt die Bruchdehnung mit steigendem
Füllstoffvolumenanteil ab. Diese mit dem Volumenanteil positiv korrelierende Versprödung
stellt einen begrenzenden Faktor bei der Herstellung hochgefüllter Filamente dar.
So neigen höher gefüllte Filamente eher zu einem Bruch bei der Herstellung und
Verarbeitung. Dies resultiert in den vorliegenden maximalen Füllstoffvolumenanteilen,
welche im Vergleich zu Spritzgussmaterialien deutlich reduziert sind. Eine weitere
Erhöhung führt zu einer unzureichenden Prozessstabilität und damit zu einer unzureichenden
Verarbeitungseignung für das FFF-Verfahren. Weiterhin zeigt sich, dass der Einfluss
der verwendeten plättchenförmigen Füllstoffe für eine identische Kunststoffmatrix
vergleichbar ist. Durch die Verwendung von Verarbeitungshilfen können die mechanischen
Eigenschaften allerdings beeinflusst werden. Die Erhöhung des E-Moduls und der
Bruchdehnung ist dabei auf die verbesserte Benetzung der Füllstoffpartikel und
damit eine verbesserte Kunststoff-Füllstoff-Interaktion zurückzuführen. Bewertung
der Wärmeleitfähigkeit Zur Darstellung der Ergebnisse der Wärmeleitfähigkeit wurden
die Messergebnisse von je vier Probekörpern über die Prüftemperaturen zwischen
30 °C und 180 °C in 30 °C Inkrementen gemittelt (Bild 4). Die Ergebnisse zeigen
eine positive Korrelation zwischen einem zunehmenden Füllstoffvolumenanteil und
der Wärmeleitfähigkeit. Diese Steigerung ist wiederum abhängig von der jeweilig
verwendeten Füllstoffart. Hierbei liefert das Material PBTx-F2-X eine vergleichbare
Wärmeleitfähigkeit wie die Materialien PBTx-F1 und PBTxa-F1 in der jeweiligen
Y-Orientierung. Die Unterschiede zwischen den beiden Materialien PBTx-F1 und PBTxa-F1
sind hingegen minimal und der Einfluss der Verarbeitungshilfe auf die Wärmeleitfähigkeit
dementsprechend als vernachlässigbar anzusehen. Weiterhin ist eine anisotrope
Wärmeleitfähigkeit für die mit Plättchen gefüllten Kunststoffe ersichtlich. Während
die X-Orientierung (entlang der abgelegten Stränge) eine erhöhte Wärmeleitfähigkeit
für alle Materialien liefert, ist diese für die Z-Orientierung (zwischen den Schichten)
am geringsten. Gründe hierfür sind der Strangverbund sowie die Füllstofforientierung
innerhalb der abgelegten Stränge. Dabei ist die aufgezeigte Anisotropie für den
Füllstoff F2 im Vergleich zu F1 leicht reduziert und bestätigt den spezifischen
Einfluss der Füllstoffart. Auf Basis der Ergebnisse können allgemein drei charakteristische
Orientierungen zur Bewertung der Wärmeleitfähigkeit erfasst werden. Für die Bauteilauslegung
ist der aufgezeigte Einfluss plättchenförmiger Füllstoffe auf die sich einstellende
Anisotropie von im FFF-Verfahren gefertigten Strukturen zwingend zu beachten.
Ausblick Die angeführten Untersuchungen zeigen, dass die Verwendung von plättchenförmigen
Füllstoffen in Abhängigkeit von dem Füllstoffvolumenanteil zu einer Beeinflussung
der Materialeigenschaften führt. Die dargelegten Ergebnisse stellen in diesem
Kontext eine Grundlage zur Bewertung des Zusammenhangs zwischen den mechanischen
Eigenschaften und der Wärmeleitfähigkeit dar. Insbesondere die Limitierung des
Füllstoffvolumenanteils durch die erhöhte Versprödung ist hierbei anzuführen.
Aktuelle Untersuchungen an der Kunststofftechnik Paderborn befassen sich mit der
Betrachtung weiterer material- und prozessseitiger Einflussgrößen auf die Wärmeleitfähigkeit.
Die generierten Daten sollen schließlich für die Entwicklung eines Modells zur
Vorhersage der Wärmeleitfähigkeit von im FFF-Verfahren gefertigten Strukturen
zusammengeführt werden.'
author:
- first_name: Elmar
full_name: Moritzer, Elmar
id: '20531'
last_name: Moritzer
- first_name: Christian Lennart
full_name: Elsner, Christian Lennart
id: '70729'
last_name: Elsner
- first_name: Maximilian Karl Franz
full_name: Salm, Maximilian Karl Franz
id: '57929'
last_name: Salm
citation:
ama: Moritzer E, Elsner CL, Salm MKF. Wie der Füllstoffvolumenanteil die Materialeigenschaften
beeinflusst. Plastverarbeiter. 2024;2024.
apa: Moritzer, E., Elsner, C. L., & Salm, M. K. F. (2024). Wie der Füllstoffvolumenanteil
die Materialeigenschaften beeinflusst. Plastverarbeiter, 2024.
bibtex: '@article{Moritzer_Elsner_Salm_2024, title={Wie der Füllstoffvolumenanteil
die Materialeigenschaften beeinflusst}, volume={2024}, journal={Plastverarbeiter},
author={Moritzer, Elmar and Elsner, Christian Lennart and Salm, Maximilian Karl
Franz}, year={2024} }'
chicago: Moritzer, Elmar, Christian Lennart Elsner, and Maximilian Karl Franz Salm.
“Wie Der Füllstoffvolumenanteil Die Materialeigenschaften Beeinflusst.” Plastverarbeiter
2024 (2024).
ieee: E. Moritzer, C. L. Elsner, and M. K. F. Salm, “Wie der Füllstoffvolumenanteil
die Materialeigenschaften beeinflusst,” Plastverarbeiter, vol. 2024, 2024.
mla: Moritzer, Elmar, et al. “Wie Der Füllstoffvolumenanteil Die Materialeigenschaften
Beeinflusst.” Plastverarbeiter, vol. 2024, 2024.
short: E. Moritzer, C.L. Elsner, M.K.F. Salm, Plastverarbeiter 2024 (2024).
date_created: 2025-03-25T10:18:06Z
date_updated: 2025-03-27T10:56:02Z
department:
- _id: '9'
- _id: '321'
- _id: '624'
- _id: '367'
intvolume: ' 2024'
keyword:
- Compoundieren
- Fused Filament Fabrication
language:
- iso: eng
publication: Plastverarbeiter
status: public
title: Wie der Füllstoffvolumenanteil die Materialeigenschaften beeinflusst
type: journal_article
user_id: '59363'
volume: 2024
year: '2024'
...
---
_id: '59132'
author:
- first_name: Elmar
full_name: Moritzer, Elmar
id: '20531'
last_name: Moritzer
- first_name: Jonas
full_name: Beutelspacher, Jonas
id: '92911'
last_name: Beutelspacher
- first_name: Christian Lennart
full_name: Elsner, Christian Lennart
id: '70729'
last_name: Elsner
citation:
ama: Moritzer E, Beutelspacher J, Elsner CL. Investigation of the weld seam quality
of particle filled polymers in the fused filament fabrication process. Polymer
Composites. Published online 2024. doi:10.1002/pc.29101
apa: Moritzer, E., Beutelspacher, J., & Elsner, C. L. (2024). Investigation
of the weld seam quality of particle filled polymers in the fused filament fabrication
process. Polymer Composites. https://doi.org/10.1002/pc.29101
bibtex: '@article{Moritzer_Beutelspacher_Elsner_2024, title={Investigation of the
weld seam quality of particle filled polymers in the fused filament fabrication
process}, DOI={10.1002/pc.29101},
journal={Polymer Composites}, author={Moritzer, Elmar and Beutelspacher, Jonas
and Elsner, Christian Lennart}, year={2024} }'
chicago: Moritzer, Elmar, Jonas Beutelspacher, and Christian Lennart Elsner. “Investigation
of the Weld Seam Quality of Particle Filled Polymers in the Fused Filament Fabrication
Process.” Polymer Composites, 2024. https://doi.org/10.1002/pc.29101.
ieee: 'E. Moritzer, J. Beutelspacher, and C. L. Elsner, “Investigation of the weld
seam quality of particle filled polymers in the fused filament fabrication process,”
Polymer Composites, 2024, doi: 10.1002/pc.29101.'
mla: Moritzer, Elmar, et al. “Investigation of the Weld Seam Quality of Particle
Filled Polymers in the Fused Filament Fabrication Process.” Polymer Composites,
2024, doi:10.1002/pc.29101.
short: E. Moritzer, J. Beutelspacher, C.L. Elsner, Polymer Composites (2024).
date_created: 2025-03-25T10:18:06Z
date_updated: 2025-03-27T10:55:25Z
department:
- _id: '9'
- _id: '321'
- _id: '624'
- _id: '367'
doi: 10.1002/pc.29101
keyword:
- Filled polymers
- Fused Filament Fabrication
- weld seam quality
- weld seam strength
language:
- iso: eng
publication: Polymer Composites
quality_controlled: '1'
status: public
title: Investigation of the weld seam quality of particle filled polymers in the fused
filament fabrication process
type: journal_article
user_id: '59363'
year: '2024'
...
---
_id: '47626'
author:
- first_name: Moritz Johannes
full_name: Rüther, Moritz Johannes
id: '38188'
last_name: Rüther
- first_name: Sven Helge
full_name: Klippstein, Sven Helge
id: '71545'
last_name: Klippstein
- first_name: Hans-Joachim
full_name: Schmid, Hans-Joachim
id: '464'
last_name: Schmid
orcid: 000-0001-8590-1921
citation:
ama: 'Rüther MJ, Klippstein SH, Schmid H-J. Correlation between SLS-Powder processability
and particle properties . In: PARTEC International Congress on Particle Technology
- Book of Abstracts. VDI Verlag GmbH; 2023:172-176.'
apa: Rüther, M. J., Klippstein, S. H., & Schmid, H.-J. (2023). Correlation between
SLS-Powder processability and particle properties . PARTEC International Congress
on Particle Technology - Book of Abstracts, 172–176.
bibtex: '@inproceedings{Rüther_Klippstein_Schmid_2023, place={Düsseldorf}, title={Correlation
between SLS-Powder processability and particle properties }, booktitle={PARTEC
International Congress on Particle Technology - Book of Abstracts}, publisher={VDI
Verlag GmbH}, author={Rüther, Moritz Johannes and Klippstein, Sven Helge and Schmid,
Hans-Joachim}, year={2023}, pages={172–176} }'
chicago: 'Rüther, Moritz Johannes, Sven Helge Klippstein, and Hans-Joachim Schmid.
“Correlation between SLS-Powder Processability and Particle Properties .” In PARTEC
International Congress on Particle Technology - Book of Abstracts, 172–76.
Düsseldorf: VDI Verlag GmbH, 2023.'
ieee: M. J. Rüther, S. H. Klippstein, and H.-J. Schmid, “Correlation between SLS-Powder
processability and particle properties ,” in PARTEC International Congress
on Particle Technology - Book of Abstracts, Nürnberg, 2023, pp. 172–176.
mla: Rüther, Moritz Johannes, et al. “Correlation between SLS-Powder Processability
and Particle Properties .” PARTEC International Congress on Particle Technology
- Book of Abstracts, VDI Verlag GmbH, 2023, pp. 172–76.
short: 'M.J. Rüther, S.H. Klippstein, H.-J. Schmid, in: PARTEC International Congress
on Particle Technology - Book of Abstracts, VDI Verlag GmbH, Düsseldorf, 2023,
pp. 172–176.'
conference:
end_date: 2023-09-25
location: Nürnberg
name: PARTEC 2023
start_date: 2023-09-23
date_created: 2023-10-05T08:09:21Z
date_updated: 2023-10-17T12:18:49Z
department:
- _id: '150'
- _id: '624'
has_accepted_license: '1'
language:
- iso: eng
page: 172 - 176
place: Düsseldorf
publication: PARTEC International Congress on Particle Technology - Book of Abstracts
publication_identifier:
eisbn:
- ' 978-3-18-990140-5'
isbn:
- ' 978-3-18-990139-9'
issn:
- 0083-5560
publication_status: published
publisher: VDI Verlag GmbH
status: public
title: 'Correlation between SLS-Powder processability and particle properties '
type: conference_abstract
user_id: '38188'
year: '2023'
...
---
_id: '46764'
abstract:
- lang: eng
text: "Polymer composites represent the industry standard in injection molding for
the production \r\nof plastic components with increased requirements in terms
of heat resistance and stiffness. In the \r\nfield of laser sintering (LS), these
materials are less common so far. In order to extend the available \r\nmaterial
variety for the LS process, new ceramic-filled Polyamide 613 powders are investigated\r\nwithin
the scope of this work. Here, the resulting properties from two different powder
production \r\nmethods are compared. One filled powder is produced by dry blending
and the other powder with \r\nthe same filler and filling ratio is produced by
encapsulating the filler particles inside the polymer \r\nparticles within the
dissolution-precipitation process. It was found that encapsulating the filler
\r\nparticles can provide certain benefits for the processability, for example
an improved powder \r\nflowability or better filler dispersion. However, encapsulating
the filler also alters the thermal \r\nproperties of the precipitated powder."
author:
- first_name: Ivo
full_name: Kletetzka, Ivo
id: '50769'
last_name: Kletetzka
- first_name: Fabian
full_name: Neitzel, Fabian
last_name: Neitzel
- first_name: Hans-Joachim
full_name: Schmid, Hans-Joachim
id: '464'
last_name: Schmid
orcid: 000-0001-8590-1921
citation:
ama: 'Kletetzka I, Neitzel F, Schmid H-J. Assessing the Impact of the Powder Production
Method on Ceramic-filled Polyamide Composites made by Laser Sintering. In: Beaman
J, ed. Proceedings of the 34th Annual International Solid Freeform Fabrication
Symposium. Vol 34. Laboratory for Freeform Fabrication and University of Texas;
2023.'
apa: Kletetzka, I., Neitzel, F., & Schmid, H.-J. (2023). Assessing the Impact
of the Powder Production Method on Ceramic-filled Polyamide Composites made by
Laser Sintering. In J. Beaman (Ed.), Proceedings of the 34th Annual International
Solid Freeform Fabrication Symposium (Vol. 34). Laboratory for Freeform Fabrication
and University of Texas.
bibtex: '@inproceedings{Kletetzka_Neitzel_Schmid_2023, place={Austin}, title={Assessing
the Impact of the Powder Production Method on Ceramic-filled Polyamide Composites
made by Laser Sintering}, volume={34}, booktitle={Proceedings of the 34th Annual
International Solid Freeform Fabrication Symposium}, publisher={Laboratory for
Freeform Fabrication and University of Texas}, author={Kletetzka, Ivo and Neitzel,
Fabian and Schmid, Hans-Joachim}, editor={Beaman, Joseph}, year={2023} }'
chicago: 'Kletetzka, Ivo, Fabian Neitzel, and Hans-Joachim Schmid. “Assessing the
Impact of the Powder Production Method on Ceramic-Filled Polyamide Composites
Made by Laser Sintering.” In Proceedings of the 34th Annual International Solid
Freeform Fabrication Symposium, edited by Joseph Beaman, Vol. 34. Austin:
Laboratory for Freeform Fabrication and University of Texas, 2023.'
ieee: I. Kletetzka, F. Neitzel, and H.-J. Schmid, “Assessing the Impact of the Powder
Production Method on Ceramic-filled Polyamide Composites made by Laser Sintering,”
in Proceedings of the 34th Annual International Solid Freeform Fabrication
Symposium, Austin, 2023, vol. 34.
mla: Kletetzka, Ivo, et al. “Assessing the Impact of the Powder Production Method
on Ceramic-Filled Polyamide Composites Made by Laser Sintering.” Proceedings
of the 34th Annual International Solid Freeform Fabrication Symposium, edited
by Joseph Beaman, vol. 34, Laboratory for Freeform Fabrication and University
of Texas, 2023.
short: 'I. Kletetzka, F. Neitzel, H.-J. Schmid, in: J. Beaman (Ed.), Proceedings
of the 34th Annual International Solid Freeform Fabrication Symposium, Laboratory
for Freeform Fabrication and University of Texas, Austin, 2023.'
conference:
end_date: 2023-08-16
location: Austin
name: 34th Annual International Solid Freeform Fabrication Symposium
start_date: 2023-08-13
date_created: 2023-09-01T12:30:25Z
date_updated: 2023-11-02T16:49:49Z
department:
- _id: '150'
- _id: '624'
- _id: '219'
- _id: '9'
editor:
- first_name: Joseph
full_name: Beaman, Joseph
last_name: Beaman
intvolume: ' 34'
language:
- iso: eng
main_file_link:
- open_access: '1'
url: https://www.sffsymposium.org/
oa: '1'
place: Austin
publication: Proceedings of the 34th Annual International Solid Freeform Fabrication
Symposium
publication_status: published
publisher: Laboratory for Freeform Fabrication and University of Texas
quality_controlled: '1'
status: public
title: Assessing the Impact of the Powder Production Method on Ceramic-filled Polyamide
Composites made by Laser Sintering
type: conference
user_id: '50769'
volume: 34
year: '2023'
...
---
_id: '48277'
abstract:
- lang: eng
text: AbstractCurrently, the fused deposition modeling
(FDM) process is the most common additive manufacturing technology. The principle
of the FDM process is the strand wise deposition of molten thermoplastic polymers,
by feeding a filament trough a heated nozzle. Due to the strand and layer wise
deposition the cooling of the manufactured component is not uniform. This leads
to dimensional deviations which may cause the component to be unusable for the
desired application. In this paper, a method is described which is based on the
shrinkage compensation through the adaption of every single raster line in components
manufactured with the FDM process. The shrinkage compensation is based on a model
resulting from a DOE which considers the main influencing factors on the shrinkage
behavior of raster lines in the FDM process. An in‐house developed software analyzes
the component and locally applies the shrinkage compensation with consideration
of the boundary conditions, e.g., the position of the raster line in the component
and the process parameters. Following, a validation using a simple geometry is
conducted to show the effect of the presented adaptive scaling method.
author:
- first_name: Elmar
full_name: Moritzer, Elmar
id: '20531'
last_name: Moritzer
- first_name: Felix
full_name: Hecker, Felix
id: '45537'
last_name: Hecker
citation:
ama: Moritzer E, Hecker F. Adaptive Scaling of Components in the Fused Deposition
Modeling Process. Macromolecular Symposia. 2023;411(1). doi:10.1002/masy.202200181
apa: Moritzer, E., & Hecker, F. (2023). Adaptive Scaling of Components in the
Fused Deposition Modeling Process. Macromolecular Symposia, 411(1).
https://doi.org/10.1002/masy.202200181
bibtex: '@article{Moritzer_Hecker_2023, title={Adaptive Scaling of Components in
the Fused Deposition Modeling Process}, volume={411}, DOI={10.1002/masy.202200181},
number={1}, journal={Macromolecular Symposia}, publisher={Wiley}, author={Moritzer,
Elmar and Hecker, Felix}, year={2023} }'
chicago: Moritzer, Elmar, and Felix Hecker. “Adaptive Scaling of Components in the
Fused Deposition Modeling Process.” Macromolecular Symposia 411, no. 1
(2023). https://doi.org/10.1002/masy.202200181.
ieee: 'E. Moritzer and F. Hecker, “Adaptive Scaling of Components in the Fused Deposition
Modeling Process,” Macromolecular Symposia, vol. 411, no. 1, 2023, doi:
10.1002/masy.202200181.'
mla: Moritzer, Elmar, and Felix Hecker. “Adaptive Scaling of Components in the Fused
Deposition Modeling Process.” Macromolecular Symposia, vol. 411, no. 1,
Wiley, 2023, doi:10.1002/masy.202200181.
short: E. Moritzer, F. Hecker, Macromolecular Symposia 411 (2023).
conference:
end_date: 2022-11-26
location: Bukarest
name: POLCOM 2022
start_date: 2022-11-13
date_created: 2023-10-19T07:25:06Z
date_updated: 2024-02-23T08:36:42Z
department:
- _id: '9'
- _id: '367'
- _id: '321'
- _id: '219'
- _id: '624'
doi: 10.1002/masy.202200181
intvolume: ' 411'
issue: '1'
keyword:
- Materials Chemistry
- Polymers and Plastics
- Organic Chemistry
- Condensed Matter Physics
language:
- iso: eng
main_file_link:
- open_access: '1'
url: https://doi.org/10.1002/masy.202200181
oa: '1'
publication: Macromolecular Symposia
publication_identifier:
issn:
- 1022-1360
- 1521-3900
publication_status: published
publisher: Wiley
quality_controlled: '1'
status: public
title: Adaptive Scaling of Components in the Fused Deposition Modeling Process
type: journal_article
user_id: '45537'
volume: 411
year: '2023'
...
---
_id: '51218'
abstract:
- lang: eng
text: 'Polymer composites represent the industry standard in injection molding for
the production of plastic components with increased requirements in terms of heat
resistance and stiffness. In the field of laser sintering (LS), these materials
are less common so far. In order to extend the available material variety for
the LS process, new ceramic-filled Polyamide 613 powders are investigated within
the scope of this work. Here, the resulting properties from two different powder
production methods are compared. One filled powder is produced by dry blending
and the other powder with the same filler and filling ratio is produced by encapsulating
the filler particles inside the polymer particles within the dissolution-precipitation
process. It was found that encapsulating the filler particles can provide certain
benefits for the processability, for example an improved powder flowability or
better filler dispersion. However, encapsulating the filler also alters the thermal
properties of the precipitated powder. '
author:
- first_name: Ivo
full_name: Kletetzka, Ivo
id: '50769'
last_name: Kletetzka
- first_name: Fabian
full_name: Neitzel, Fabian
id: '72307'
last_name: Neitzel
orcid: '0009-0004-8412-3645 '
- first_name: Hans-Joachim
full_name: Schmid, Hans-Joachim
id: '464'
last_name: Schmid
orcid: 000-0001-8590-1921
citation:
ama: 'Kletetzka I, Neitzel F, Schmid H-J. Assessing the Impact of the Powder Production
Method on Ceramic-filled Polyamide Composites made by Laser Sintering. In: Beaman
J, ed. Proceedings of the 34th Annual International Solid Freeform Fabrication
Symposium. ; 2023. doi:https://doi.org/10.26153/tsw/50931'
apa: Kletetzka, I., Neitzel, F., & Schmid, H.-J. (2023). Assessing the Impact
of the Powder Production Method on Ceramic-filled Polyamide Composites made by
Laser Sintering. In J. Beaman (Ed.), Proceedings of the 34th Annual International
Solid Freeform Fabrication Symposium. https://doi.org/10.26153/tsw/50931
bibtex: '@inproceedings{Kletetzka_Neitzel_Schmid_2023, place={Laboratory for Freeform
Fabrication and University of Texas, Austin}, title={Assessing the Impact of the
Powder Production Method on Ceramic-filled Polyamide Composites made by Laser
Sintering}, DOI={https://doi.org/10.26153/tsw/50931},
booktitle={Proceedings of the 34th Annual International Solid Freeform Fabrication
Symposium}, author={Kletetzka, Ivo and Neitzel, Fabian and Schmid, Hans-Joachim},
editor={Beaman, Joseph}, year={2023} }'
chicago: Kletetzka, Ivo, Fabian Neitzel, and Hans-Joachim Schmid. “Assessing the
Impact of the Powder Production Method on Ceramic-Filled Polyamide Composites
Made by Laser Sintering.” In Proceedings of the 34th Annual International Solid
Freeform Fabrication Symposium, edited by Joseph Beaman. Laboratory for Freeform
Fabrication and University of Texas, Austin, 2023. https://doi.org/10.26153/tsw/50931.
ieee: 'I. Kletetzka, F. Neitzel, and H.-J. Schmid, “Assessing the Impact of the
Powder Production Method on Ceramic-filled Polyamide Composites made by Laser
Sintering,” in Proceedings of the 34th Annual International Solid Freeform
Fabrication Symposium, Austin, 2023, doi: https://doi.org/10.26153/tsw/50931.'
mla: Kletetzka, Ivo, et al. “Assessing the Impact of the Powder Production Method
on Ceramic-Filled Polyamide Composites Made by Laser Sintering.” Proceedings
of the 34th Annual International Solid Freeform Fabrication Symposium, edited
by Joseph Beaman, 2023, doi:https://doi.org/10.26153/tsw/50931.
short: 'I. Kletetzka, F. Neitzel, H.-J. Schmid, in: J. Beaman (Ed.), Proceedings
of the 34th Annual International Solid Freeform Fabrication Symposium, Laboratory
for Freeform Fabrication and University of Texas, Austin, 2023.'
conference:
end_date: 2023-08-16
location: Austin
name: 34th Annual International Solid Freeform Fabrication Symposium
start_date: 2023-08-14
date_created: 2024-02-07T13:59:25Z
date_updated: 2024-04-02T12:46:08Z
department:
- _id: '150'
- _id: '219'
- _id: '624'
- _id: '9'
doi: https://doi.org/10.26153/tsw/50931
editor:
- first_name: Joseph
full_name: Beaman, Joseph
last_name: Beaman
keyword:
- Additive Manufacturing
- Laser Sintering
- Filled Materials
- Composites
- Polyamide 613
language:
- iso: eng
main_file_link:
- open_access: '1'
url: https://www.sffsymposium.org/
oa: '1'
place: Laboratory for Freeform Fabrication and University of Texas, Austin
publication: Proceedings of the 34th Annual International Solid Freeform Fabrication
Symposium
publication_status: published
quality_controlled: '1'
status: public
title: Assessing the Impact of the Powder Production Method on Ceramic-filled Polyamide
Composites made by Laser Sintering
type: conference
user_id: '50769'
year: '2023'
...
---
_id: '46862'
abstract:
- lang: eng
text: The high flammability of components manufactured by laser sintering (LS) using
standard polyamide 12 (PA12) powder still severely restricts their use in industries
such as electronics, aviation, and transportation. A key factor for the further
establishment of LS is the expansion of the material portfolio with, for example,
refreshable and halogen-free flame-retardant (FR) powder materials. Accordingly,
various halogen-free FRs are investigated in this work and evaluated with respect
to their use in LS. First, their decomposition behavior and mode of action are
examined. Subsequently, the additives are dry blended with PA12 to investigate
properties relevant for LS, such as particle morphology, thermal behavior and
melt viscosity. Afterwards, test specimens for UL94 vertical flame-retardancy
tests are produced by processing the dry blends on an EOS P3 LS system. Finally,
the process stability of the process-aged powder blends is investigated by again
examining the thermal behavior and melt viscosity.
author:
- first_name: Fabian
full_name: Neitzel, Fabian
id: '72307'
last_name: Neitzel
orcid: '0009-0004-8412-3645 '
- first_name: Ivo
full_name: Kletetzka, Ivo
id: '50769'
last_name: Kletetzka
- first_name: Hans-Joachim
full_name: Schmid, Hans-Joachim
id: '464'
last_name: Schmid
orcid: 000-0001-8590-1921
citation:
ama: 'Neitzel F, Kletetzka I, Schmid H-J. Halogen-Free Flame Retardant Powder Materials
for Laser Sintering: Evaluation and Process Stability Analysis. In: Beaman J,
ed. Proceedings of the 34th Annual International Solid Freeform Fabrication
Symposium. ; 2023. doi:https://doi.org/10.26153/tsw/50926'
apa: 'Neitzel, F., Kletetzka, I., & Schmid, H.-J. (2023). Halogen-Free Flame
Retardant Powder Materials for Laser Sintering: Evaluation and Process Stability
Analysis. In J. Beaman (Ed.), Proceedings of the 34th Annual International
Solid Freeform Fabrication Symposium. https://doi.org/10.26153/tsw/50926'
bibtex: '@inproceedings{Neitzel_Kletetzka_Schmid_2023, place={Laboratory for Freeform
Fabrication and University of Texas, Austin}, title={Halogen-Free Flame Retardant
Powder Materials for Laser Sintering: Evaluation and Process Stability Analysis},
DOI={https://doi.org/10.26153/tsw/50926},
booktitle={Proceedings of the 34th Annual International Solid Freeform Fabrication
Symposium}, author={Neitzel, Fabian and Kletetzka, Ivo and Schmid, Hans-Joachim},
editor={Beaman, Joseph}, year={2023} }'
chicago: 'Neitzel, Fabian, Ivo Kletetzka, and Hans-Joachim Schmid. “Halogen-Free
Flame Retardant Powder Materials for Laser Sintering: Evaluation and Process Stability
Analysis.” In Proceedings of the 34th Annual International Solid Freeform Fabrication
Symposium, edited by Joseph Beaman. Laboratory for Freeform Fabrication and
University of Texas, Austin, 2023. https://doi.org/10.26153/tsw/50926.'
ieee: 'F. Neitzel, I. Kletetzka, and H.-J. Schmid, “Halogen-Free Flame Retardant
Powder Materials for Laser Sintering: Evaluation and Process Stability Analysis,”
in Proceedings of the 34th Annual International Solid Freeform Fabrication
Symposium, Austin, 2023, doi: https://doi.org/10.26153/tsw/50926.'
mla: 'Neitzel, Fabian, et al. “Halogen-Free Flame Retardant Powder Materials for
Laser Sintering: Evaluation and Process Stability Analysis.” Proceedings of
the 34th Annual International Solid Freeform Fabrication Symposium, edited
by Joseph Beaman, 2023, doi:https://doi.org/10.26153/tsw/50926.'
short: 'F. Neitzel, I. Kletetzka, H.-J. Schmid, in: J. Beaman (Ed.), Proceedings
of the 34th Annual International Solid Freeform Fabrication Symposium, Laboratory
for Freeform Fabrication and University of Texas, Austin, 2023.'
conference:
end_date: 2023-08-16
location: Austin
name: 34th Annual International Solid Freeform Fabrication Symposium
start_date: 2023-08-14
date_created: 2023-09-07T12:11:51Z
date_updated: 2024-04-02T12:43:51Z
department:
- _id: '150'
- _id: '219'
- _id: '624'
- _id: '9'
doi: https://doi.org/10.26153/tsw/50926
editor:
- first_name: Joseph
full_name: Beaman, Joseph
last_name: Beaman
keyword:
- Additive Manufacturing
- Laser Sintering
- Flame Retardant
- Polyamide 12
language:
- iso: eng
main_file_link:
- open_access: '1'
url: https://www.sffsymposium.org/
oa: '1'
place: Laboratory for Freeform Fabrication and University of Texas, Austin
publication: Proceedings of the 34th Annual International Solid Freeform Fabrication
Symposium
publication_status: published
quality_controlled: '1'
status: public
title: 'Halogen-Free Flame Retardant Powder Materials for Laser Sintering: Evaluation
and Process Stability Analysis'
type: conference
user_id: '72307'
year: '2023'
...
---
_id: '43128'
article_number: '118460'
author:
- first_name: Moritz Johannes
full_name: Rüther, Moritz Johannes
id: '38188'
last_name: Rüther
- first_name: Sven Helge
full_name: Klippstein, Sven Helge
id: '71545'
last_name: Klippstein
- first_name: SathishKumar
full_name: Ponusamy, SathishKumar
id: '77383'
last_name: Ponusamy
- first_name: Torben
full_name: Rüther, Torben
id: '76950'
last_name: Rüther
- first_name: Hans-Joachim
full_name: Schmid, Hans-Joachim
id: '464'
last_name: Schmid
orcid: 000-0001-8590-1921
citation:
ama: Rüther MJ, Klippstein SH, Ponusamy S, Rüther T, Schmid H-J. Flowability of
polymer powders at elevated temperatures for additive manufacturing. Powder
Technology. 2023;422. doi:10.1016/j.powtec.2023.118460
apa: Rüther, M. J., Klippstein, S. H., Ponusamy, S., Rüther, T., & Schmid, H.-J.
(2023). Flowability of polymer powders at elevated temperatures for additive manufacturing.
Powder Technology, 422, Article 118460. https://doi.org/10.1016/j.powtec.2023.118460
bibtex: '@article{Rüther_Klippstein_Ponusamy_Rüther_Schmid_2023, title={Flowability
of polymer powders at elevated temperatures for additive manufacturing}, volume={422},
DOI={10.1016/j.powtec.2023.118460},
number={118460}, journal={Powder Technology}, publisher={Elsevier BV}, author={Rüther,
Moritz Johannes and Klippstein, Sven Helge and Ponusamy, SathishKumar and Rüther,
Torben and Schmid, Hans-Joachim}, year={2023} }'
chicago: Rüther, Moritz Johannes, Sven Helge Klippstein, SathishKumar Ponusamy,
Torben Rüther, and Hans-Joachim Schmid. “Flowability of Polymer Powders at Elevated
Temperatures for Additive Manufacturing.” Powder Technology 422 (2023).
https://doi.org/10.1016/j.powtec.2023.118460.
ieee: 'M. J. Rüther, S. H. Klippstein, S. Ponusamy, T. Rüther, and H.-J. Schmid,
“Flowability of polymer powders at elevated temperatures for additive manufacturing,”
Powder Technology, vol. 422, Art. no. 118460, 2023, doi: 10.1016/j.powtec.2023.118460.'
mla: Rüther, Moritz Johannes, et al. “Flowability of Polymer Powders at Elevated
Temperatures for Additive Manufacturing.” Powder Technology, vol. 422,
118460, Elsevier BV, 2023, doi:10.1016/j.powtec.2023.118460.
short: M.J. Rüther, S.H. Klippstein, S. Ponusamy, T. Rüther, H.-J. Schmid, Powder
Technology 422 (2023).
date_created: 2023-03-27T19:57:12Z
date_updated: 2023-04-27T12:33:28Z
department:
- _id: '150'
- _id: '624'
- _id: '219'
doi: 10.1016/j.powtec.2023.118460
intvolume: ' 422'
keyword:
- General Chemical Engineering
language:
- iso: eng
publication: Powder Technology
publication_identifier:
issn:
- 0032-5910
publication_status: published
publisher: Elsevier BV
quality_controlled: '1'
status: public
title: Flowability of polymer powders at elevated temperatures for additive manufacturing
type: journal_article
user_id: '71545'
volume: 422
year: '2023'
...
---
_id: '44509'
author:
- first_name: Anne
full_name: Kruse, Anne
id: '55833'
last_name: Kruse
citation:
ama: Kruse A. Entwicklung einer Methode zur Integration der Additiven Fertigung
in die Serienproduktion am Beispiel des Lasersinterns. Vol 27.; 2023.
apa: Kruse, A. (2023). Entwicklung einer Methode zur Integration der Additiven
Fertigung in die Serienproduktion am Beispiel des Lasersinterns (Vol. 27).
bibtex: '@book{Kruse_2023, series={Forschungsberichte des Direct Manufacturing Research
Centers }, title={Entwicklung einer Methode zur Integration der Additiven Fertigung
in die Serienproduktion am Beispiel des Lasersinterns}, volume={27}, author={Kruse,
Anne}, year={2023}, collection={Forschungsberichte des Direct Manufacturing Research
Centers } }'
chicago: Kruse, Anne. Entwicklung einer Methode zur Integration der Additiven
Fertigung in die Serienproduktion am Beispiel des Lasersinterns. Vol. 27.
Forschungsberichte des Direct Manufacturing Research Centers , 2023.
ieee: A. Kruse, Entwicklung einer Methode zur Integration der Additiven Fertigung
in die Serienproduktion am Beispiel des Lasersinterns, vol. 27. 2023.
mla: Kruse, Anne. Entwicklung einer Methode zur Integration der Additiven Fertigung
in die Serienproduktion am Beispiel des Lasersinterns. 2023.
short: A. Kruse, Entwicklung einer Methode zur Integration der Additiven Fertigung
in die Serienproduktion am Beispiel des Lasersinterns, 2023.
date_created: 2023-05-05T11:24:51Z
date_updated: 2023-05-05T11:24:56Z
department:
- _id: '144'
- _id: '219'
- _id: '624'
- _id: '741'
intvolume: ' 27'
language:
- iso: ger
page: '145'
publication_identifier:
isbn:
- 978-3-8440-8955-4
publication_status: published
series_title: 'Forschungsberichte des Direct Manufacturing Research Centers '
status: public
supervisor:
- first_name: Rainer
full_name: Koch, Rainer
last_name: Koch
title: Entwicklung einer Methode zur Integration der Additiven Fertigung in die Serienproduktion
am Beispiel des Lasersinterns
type: dissertation
user_id: '55833'
volume: 27
year: '2023'
...
---
_id: '46815'
abstract:
- lang: eng
text: In this work, the influence of the filler–matrix adhesion on the tensile properties
of laser-sintered parts built with Polyamide 613 filled with glass beads was investigated.
For this purpose, dry blends of glass beads with and without organosilane coupling
agents and polyamide powder were prepared and processed into tensile specimens
on an EOS P396 laser sintering system. The samples were tested both in the dry
state and after an accelerated conditioning in a climate chamber. Furthermore,
finite element method (FEM) simulations were performed to model the extreme cases
of optimum adhesion and no adhesion. By correlating the tensile tests with the
simulation results and by analyzing the fracture surfaces, it was shown that the
filler–matrix adhesion is sufficient in the dry state but is strongly degraded
by conditioning. Even the presence of various organosilane thin films could not
prevent a strong deterioration of the filler–matrix adhesion and the associated
deterioration of the mechanical properties. Since a comparison with an injection-molded
sample of the same polymer filler combination shows identical behavior after conditioning,
it is assumed that this problem is not limited to additively manufactured parts.
author:
- first_name: Ivo
full_name: Kletetzka, Ivo
id: '50769'
last_name: Kletetzka
- first_name: Maren
full_name: Kosanke, Maren
last_name: Kosanke
- first_name: Dennis
full_name: Meinderink, Dennis
last_name: Meinderink
- first_name: Vanessa
full_name: Neßlinger, Vanessa
last_name: Neßlinger
- first_name: Guido
full_name: Grundmeier, Guido
id: '194'
last_name: Grundmeier
- first_name: Hans-Joachim
full_name: Schmid, Hans-Joachim
id: '464'
last_name: Schmid
orcid: 000-0001-8590-1921
citation:
ama: Kletetzka I, Kosanke M, Meinderink D, Neßlinger V, Grundmeier G, Schmid H-J.
Influence of the filler–matrix adhesion and the effects of conditioning on tensile
properties of laser-sintered parts built with polyamide–glass bead dry blends.
Progress in Additive Manufacturing. Published online 2023. doi:10.1007/s40964-023-00501-z
apa: Kletetzka, I., Kosanke, M., Meinderink, D., Neßlinger, V., Grundmeier, G.,
& Schmid, H.-J. (2023). Influence of the filler–matrix adhesion and the effects
of conditioning on tensile properties of laser-sintered parts built with polyamide–glass
bead dry blends. Progress in Additive Manufacturing. https://doi.org/10.1007/s40964-023-00501-z
bibtex: '@article{Kletetzka_Kosanke_Meinderink_Neßlinger_Grundmeier_Schmid_2023,
title={Influence of the filler–matrix adhesion and the effects of conditioning
on tensile properties of laser-sintered parts built with polyamide–glass bead
dry blends}, DOI={10.1007/s40964-023-00501-z},
journal={Progress in Additive Manufacturing}, publisher={Springer Science and
Business Media LLC}, author={Kletetzka, Ivo and Kosanke, Maren and Meinderink,
Dennis and Neßlinger, Vanessa and Grundmeier, Guido and Schmid, Hans-Joachim},
year={2023} }'
chicago: Kletetzka, Ivo, Maren Kosanke, Dennis Meinderink, Vanessa Neßlinger, Guido
Grundmeier, and Hans-Joachim Schmid. “Influence of the Filler–Matrix Adhesion
and the Effects of Conditioning on Tensile Properties of Laser-Sintered Parts
Built with Polyamide–Glass Bead Dry Blends.” Progress in Additive Manufacturing,
2023. https://doi.org/10.1007/s40964-023-00501-z.
ieee: 'I. Kletetzka, M. Kosanke, D. Meinderink, V. Neßlinger, G. Grundmeier, and
H.-J. Schmid, “Influence of the filler–matrix adhesion and the effects of conditioning
on tensile properties of laser-sintered parts built with polyamide–glass bead
dry blends,” Progress in Additive Manufacturing, 2023, doi: 10.1007/s40964-023-00501-z.'
mla: Kletetzka, Ivo, et al. “Influence of the Filler–Matrix Adhesion and the Effects
of Conditioning on Tensile Properties of Laser-Sintered Parts Built with Polyamide–Glass
Bead Dry Blends.” Progress in Additive Manufacturing, Springer Science
and Business Media LLC, 2023, doi:10.1007/s40964-023-00501-z.
short: I. Kletetzka, M. Kosanke, D. Meinderink, V. Neßlinger, G. Grundmeier, H.-J.
Schmid, Progress in Additive Manufacturing (2023).
date_created: 2023-09-06T06:49:38Z
date_updated: 2023-09-07T11:51:01Z
department:
- _id: '150'
- _id: '624'
- _id: '219'
- _id: '9'
doi: 10.1007/s40964-023-00501-z
keyword:
- Industrial and Manufacturing Engineering
language:
- iso: eng
main_file_link:
- open_access: '1'
url: https://rdcu.be/dlqzG
oa: '1'
publication: Progress in Additive Manufacturing
publication_identifier:
issn:
- 2363-9512
- 2363-9520
publication_status: published
publisher: Springer Science and Business Media LLC
quality_controlled: '1'
status: public
title: Influence of the filler–matrix adhesion and the effects of conditioning on
tensile properties of laser-sintered parts built with polyamide–glass bead dry blends
type: journal_article
user_id: '50769'
year: '2023'
...
---
_id: '43049'
abstract:
- lang: eng
text: "Abstract\r\n In this work, the influence
of the filler matrix adhesion on the tensile properties of laser-sintered parts
built with Polyamide 613 filled with glass beads was investigated. For this purpose,
dry blends of glass beads with and without organosilane coupling agents and polyamide
powder were prepared and processed into tensile specimens on an EOS P396. The
samples were tested both in the dry state and after an accelerated conditioning
in a climate chamber. Furthermore, FEM simulations were performed to model the
limiting cases of optimum adhesion and no adhesion. By correlating the tensile
tests with the simulation results and by analyzing the fracture surfaces, it was
shown that the filler matrix adhesion is sufficient in the dry state but is strongly
degraded by conditioning. Even the presence of various organosilane thin films
could not prevent a strong deterioration of the filler-matrix adhesion and the
associated deterioration of the mechanical properties. Since a comparison with
an injection molded sample of the same polymer filler combination shows identical
behavior after conditioning, it is assumed that this problem is not limited to
additively manufactured parts."
author:
- first_name: Ivo
full_name: Kletetzka, Ivo
last_name: Kletetzka
- first_name: Maren
full_name: Kosanke, Maren
last_name: Kosanke
- first_name: Dennis
full_name: Meinderink, Dennis
last_name: Meinderink
- first_name: Vanessa
full_name: Neßlinger, Vanessa
last_name: Neßlinger
- first_name: Guido
full_name: Grundmeier, Guido
last_name: Grundmeier
- first_name: Hans-Joachim
full_name: Schmid, Hans-Joachim
last_name: Schmid
citation:
ama: Kletetzka I, Kosanke M, Meinderink D, Neßlinger V, Grundmeier G, Schmid H-J.
Influence of the filler matrix adhesion and the effects of conditioning on tensile
properties of laser sintered parts built with polyamide glass bead dry blends.
Published online 2023.
apa: Kletetzka, I., Kosanke, M., Meinderink, D., Neßlinger, V., Grundmeier, G.,
& Schmid, H.-J. (2023). Influence of the filler matrix adhesion and the
effects of conditioning on tensile properties of laser sintered parts built with
polyamide glass bead dry blends. Research Square Platform LLC.
bibtex: '@article{Kletetzka_Kosanke_Meinderink_Neßlinger_Grundmeier_Schmid_2023,
title={Influence of the filler matrix adhesion and the effects of conditioning
on tensile properties of laser sintered parts built with polyamide glass bead
dry blends}, publisher={Research Square Platform LLC}, author={Kletetzka, Ivo
and Kosanke, Maren and Meinderink, Dennis and Neßlinger, Vanessa and Grundmeier,
Guido and Schmid, Hans-Joachim}, year={2023} }'
chicago: Kletetzka, Ivo, Maren Kosanke, Dennis Meinderink, Vanessa Neßlinger, Guido
Grundmeier, and Hans-Joachim Schmid. “Influence of the Filler Matrix Adhesion
and the Effects of Conditioning on Tensile Properties of Laser Sintered Parts
Built with Polyamide Glass Bead Dry Blends.” Research Square Platform LLC, 2023.
ieee: I. Kletetzka, M. Kosanke, D. Meinderink, V. Neßlinger, G. Grundmeier, and
H.-J. Schmid, “Influence of the filler matrix adhesion and the effects of conditioning
on tensile properties of laser sintered parts built with polyamide glass bead
dry blends.” Research Square Platform LLC, 2023.
mla: Kletetzka, Ivo, et al. Influence of the Filler Matrix Adhesion and the Effects
of Conditioning on Tensile Properties of Laser Sintered Parts Built with Polyamide
Glass Bead Dry Blends. Research Square Platform LLC, 2023.
short: I. Kletetzka, M. Kosanke, D. Meinderink, V. Neßlinger, G. Grundmeier, H.-J.
Schmid, (2023).
date_created: 2023-03-20T09:13:23Z
date_updated: 2023-09-07T11:52:39Z
department:
- _id: '150'
- _id: '624'
- _id: '219'
- _id: '9'
language:
- iso: eng
main_file_link:
- open_access: '1'
url: https://www.researchsquare.com/article/rs-2664324/v1
oa: '1'
publication_status: published
publisher: Research Square Platform LLC
status: public
title: Influence of the filler matrix adhesion and the effects of conditioning on
tensile properties of laser sintered parts built with polyamide glass bead dry blends
type: preprint
user_id: '50769'
year: '2023'
...
---
_id: '45783'
author:
- first_name: Ivo
full_name: Kletetzka, Ivo
id: '50769'
last_name: Kletetzka
citation:
ama: 'Kletetzka I. Tensile Testing for Polymer AM - Best Pratice at the DMRC. In:
; 2023.'
apa: Kletetzka, I. (2023). Tensile Testing for Polymer AM - Best Pratice at the
DMRC. Mobility goes Additve, Berlin.
bibtex: '@inproceedings{Kletetzka_2023, title={Tensile Testing for Polymer AM -
Best Pratice at the DMRC}, author={Kletetzka, Ivo}, year={2023} }'
chicago: Kletetzka, Ivo. “Tensile Testing for Polymer AM - Best Pratice at the DMRC,”
2023.
ieee: I. Kletetzka, “Tensile Testing for Polymer AM - Best Pratice at the DMRC,”
presented at the Mobility goes Additve, Berlin, 2023.
mla: Kletetzka, Ivo. Tensile Testing for Polymer AM - Best Pratice at the DMRC.
2023.
short: 'I. Kletetzka, in: 2023.'
conference:
end_date: 2023-05-31
location: Berlin
name: Mobility goes Additve
start_date: 2023-05-31
date_created: 2023-06-27T08:32:16Z
date_updated: 2023-09-07T11:52:08Z
department:
- _id: '150'
- _id: '624'
- _id: '219'
- _id: '9'
language:
- iso: eng
publication_status: published
status: public
title: Tensile Testing for Polymer AM - Best Pratice at the DMRC
type: conference_abstract
user_id: '50769'
year: '2023'
...
---
_id: '43046'
abstract:
- lang: eng
text: In the laser sintering technology, the semi-crystalline polymer material is
exposed to elevated temperatures during processing, which leads to serious material
ageing for most materials. This has already been investigated intensively by various
authors. However, the ageing of the material at ambient temperatures during shelf
life has not been the focus so far. The need to analyse the shelf life can be
derived from an ecological and economic point of view. This work is focusing on
the shelf life of PA2200 (PA12). To reduce the potential influences of powder
production fluctuations, two different powder batches stored for 5.5 years and
6.5 years are investigated and compared to a reference powder produced 0.5 years
before these investigations. Multiple powder analyses and part characterisations
have been performed. A significant yellowing and molecular chain length reduction
can be derived from the measurement results. Whereas the influence on mechanical
part performance was minor, the parts built with the stored powders are more yellowish.
As it is most likely that this is due to the consumption of polyamide stabilisers,
it can be assumed that these parts will be subject to significantly faster ageing.
Therefore, it is still not recommended to use the stored powders for critical
parts or light intense and humid environments.
author:
- first_name: Sven Helge
full_name: Klippstein, Sven Helge
id: '71545'
last_name: Klippstein
- first_name: Ivo
full_name: Kletetzka, Ivo
id: '50769'
last_name: Kletetzka
- first_name: Ilknur
full_name: Sural, Ilknur
last_name: Sural
- first_name: Hans-Joachim
full_name: Schmid, Hans-Joachim
id: '464'
last_name: Schmid
orcid: 000-0001-8590-1921
citation:
ama: Klippstein SH, Kletetzka I, Sural I, Schmid H-J. Influence of a prolonged shelf
time on PA12 laser sintering powder and resulting part properties. The International
Journal of Advanced Manufacturing Technology . Published online 2023. doi:https://doi.org/10.1007/s00170-023-11243-1
apa: Klippstein, S. H., Kletetzka, I., Sural, I., & Schmid, H.-J. (2023). Influence
of a prolonged shelf time on PA12 laser sintering powder and resulting part properties.
The International Journal of Advanced Manufacturing Technology . https://doi.org/10.1007/s00170-023-11243-1
bibtex: '@article{Klippstein_Kletetzka_Sural_Schmid_2023, title={Influence of a
prolonged shelf time on PA12 laser sintering powder and resulting part properties},
DOI={https://doi.org/10.1007/s00170-023-11243-1},
journal={The International Journal of Advanced Manufacturing Technology }, publisher={Springer},
author={Klippstein, Sven Helge and Kletetzka, Ivo and Sural, Ilknur and Schmid,
Hans-Joachim}, year={2023} }'
chicago: Klippstein, Sven Helge, Ivo Kletetzka, Ilknur Sural, and Hans-Joachim Schmid.
“Influence of a Prolonged Shelf Time on PA12 Laser Sintering Powder and Resulting
Part Properties.” The International Journal of Advanced Manufacturing Technology
, 2023. https://doi.org/10.1007/s00170-023-11243-1.
ieee: 'S. H. Klippstein, I. Kletetzka, I. Sural, and H.-J. Schmid, “Influence of
a prolonged shelf time on PA12 laser sintering powder and resulting part properties,”
The International Journal of Advanced Manufacturing Technology , 2023,
doi: https://doi.org/10.1007/s00170-023-11243-1.'
mla: Klippstein, Sven Helge, et al. “Influence of a Prolonged Shelf Time on PA12
Laser Sintering Powder and Resulting Part Properties.” The International Journal
of Advanced Manufacturing Technology , Springer, 2023, doi:https://doi.org/10.1007/s00170-023-11243-1.
short: S.H. Klippstein, I. Kletetzka, I. Sural, H.-J. Schmid, The International
Journal of Advanced Manufacturing Technology (2023).
date_created: 2023-03-18T14:28:46Z
date_updated: 2023-09-07T11:57:59Z
department:
- _id: '150'
- _id: '624'
- _id: '219'
- _id: '9'
doi: https://doi.org/10.1007/s00170-023-11243-1
keyword:
- Selective laser sintering
- Shelf life
- Polyamide 12
- powder
- PA2200
- material ageing
language:
- iso: eng
main_file_link:
- open_access: '1'
url: https://link.springer.com/article/10.1007/s00170-023-11243-1
oa: '1'
publication: 'The International Journal of Advanced Manufacturing Technology '
publication_status: published
publisher: Springer
quality_controlled: '1'
status: public
title: Influence of a prolonged shelf time on PA12 laser sintering powder and resulting
part properties
type: journal_article
user_id: '50769'
year: '2023'
...