---
_id: '63072'
abstract:
- lang: eng
text: Titanium alloys are widely employed for biomedical implants due to
their high strength, biocompatibility, and corrosion resistance, yet their lack
of intrinsic antibacterial activity remains a major limitation. Incorporating
copper, an antibacterial and β-stabilising element, offers a promising strategy
to enhance implant performance. This study investigates Ti-6Al-7Nb modified with
1–9 wt.% Cu via in situ alloying during metal-based laser powder bed fusion (PBF-LB/M),
with the aim of assessing processability, microstructural evolution, and mechanical
properties. Highly dense samples (>99.9%) were produced across all Cu levels,
though chemical homogeneity strongly depended on processing parameters. Increasing
Cu content promoted β-phase stabilisation, Ti2Cu precipitation, and pronounced
grain refinement. Hardness and yield strength increased nearly linearly with Cu
addition, while ductility decreased sharply at ≥5 wt.% Cu due to intermetallic
formation, hot cracking, and brittle fracture. These results illustrate both the
opportunities and constraints of rapid alloy screening via PBF-LB/M. Overall,
moderate Cu additions of 1–3 wt.% provide the most favourable balance between
mechanical performance, manufacturability, and potential antibacterial functionality.
These findings provide a clear guideline for the design of Cu-functionalised titanium
implants and demonstrate the efficiency of in situ alloy screening for accelerated
materials development.
article_number: '1053'
article_type: original
author:
- first_name: Paul
full_name: Steinmeier, Paul
last_name: Steinmeier
- first_name: Kay-Peter
full_name: Hoyer, Kay-Peter
last_name: Hoyer
- first_name: Nelson Filipe
full_name: Lopes Dias, Nelson Filipe
last_name: Lopes Dias
- first_name: Reiner
full_name: Zielke, Reiner
last_name: Zielke
- first_name: Wolfgang
full_name: Tillmann, Wolfgang
last_name: Tillmann
- first_name: Mirko
full_name: Schaper, Mirko
last_name: Schaper
citation:
ama: Steinmeier P, Hoyer K-P, Lopes Dias NF, Zielke R, Tillmann W, Schaper M. In
Situ Alloying of Ti-6Al-7Nb with Copper Using Laser Powder Bed Fusion. Crystals.
2025;15(12). doi:10.3390/cryst15121053
apa: Steinmeier, P., Hoyer, K.-P., Lopes Dias, N. F., Zielke, R., Tillmann, W.,
& Schaper, M. (2025). In Situ Alloying of Ti-6Al-7Nb with Copper Using Laser
Powder Bed Fusion. Crystals, 15(12), Article 1053. https://doi.org/10.3390/cryst15121053
bibtex: '@article{Steinmeier_Hoyer_Lopes Dias_Zielke_Tillmann_Schaper_2025, title={In
Situ Alloying of Ti-6Al-7Nb with Copper Using Laser Powder Bed Fusion}, volume={15},
DOI={10.3390/cryst15121053},
number={121053}, journal={Crystals}, publisher={MDPI AG}, author={Steinmeier,
Paul and Hoyer, Kay-Peter and Lopes Dias, Nelson Filipe and Zielke, Reiner and
Tillmann, Wolfgang and Schaper, Mirko}, year={2025} }'
chicago: Steinmeier, Paul, Kay-Peter Hoyer, Nelson Filipe Lopes Dias, Reiner Zielke,
Wolfgang Tillmann, and Mirko Schaper. “In Situ Alloying of Ti-6Al-7Nb with Copper
Using Laser Powder Bed Fusion.” Crystals 15, no. 12 (2025). https://doi.org/10.3390/cryst15121053.
ieee: 'P. Steinmeier, K.-P. Hoyer, N. F. Lopes Dias, R. Zielke, W. Tillmann, and
M. Schaper, “In Situ Alloying of Ti-6Al-7Nb with Copper Using Laser Powder Bed
Fusion,” Crystals, vol. 15, no. 12, Art. no. 1053, 2025, doi: 10.3390/cryst15121053.'
mla: Steinmeier, Paul, et al. “In Situ Alloying of Ti-6Al-7Nb with Copper Using
Laser Powder Bed Fusion.” Crystals, vol. 15, no. 12, 1053, MDPI AG, 2025,
doi:10.3390/cryst15121053.
short: P. Steinmeier, K.-P. Hoyer, N.F. Lopes Dias, R. Zielke, W. Tillmann, M. Schaper,
Crystals 15 (2025).
date_created: 2025-12-12T13:11:59Z
date_updated: 2025-12-12T14:02:13Z
ddc:
- '620'
department:
- _id: '158'
- _id: '321'
doi: 10.3390/cryst15121053
file:
- access_level: closed
content_type: application/pdf
creator: paulstei
date_created: 2025-12-12T13:12:33Z
date_updated: 2025-12-12T13:12:33Z
file_id: '63073'
file_name: crystals-15-01053.pdf
file_size: 20716652
relation: main_file
success: 1
file_date_updated: 2025-12-12T13:12:33Z
funded_apc: '1'
has_accepted_license: '1'
intvolume: ' 15'
issue: '12'
keyword:
- Biomaterial
- In Situ Alloying
- Titanium
- Additive Manufacturing
language:
- iso: eng
main_file_link:
- open_access: '1'
url: https://doi.org/10.3390/cryst15121053
oa: '1'
publication: Crystals
publication_identifier:
issn:
- 2073-4352
publication_status: published
publisher: MDPI AG
quality_controlled: '1'
status: public
title: In Situ Alloying of Ti-6Al-7Nb with Copper Using Laser Powder Bed Fusion
type: journal_article
user_id: '69776'
volume: 15
year: '2025'
...
---
_id: '46451'
abstract:
- lang: eng
text: 'New technologies and materials carry significant potential for sustainable
production and use of products. As an example, Additive Manufacturing technologies
and materials promise lightweight design and energy efficient use of parts. Exhausting
the full potential requires: a) consideration of uncertainties with respect to
future capabilities, and b) upgradeable design guidelines to cover advancements
consistently. The proposed approach merges concepts of Design-for-X with foresight
algorithms of Scenario-Technique to derive actionable knowledge. It is validated
by an application in the field of Additive Manufacturing, namely Metal Fused Deposition
Modelling. Engineers benefit from the intuitive access to heterogeneous types
of sustainability related information.'
author:
- first_name: Iris
full_name: Gräßler, Iris
id: '47565'
last_name: Gräßler
orcid: 0000-0001-5765-971X
- first_name: Iryna
full_name: Mozgova, Iryna
id: '95903'
last_name: Mozgova
- first_name: Jens
full_name: Pottebaum, Jens
id: '405'
last_name: Pottebaum
orcid: http://orcid.org/0000-0001-8778-2989
- first_name: Manuel
full_name: Ott, Manuel
id: '44204'
last_name: Ott
- first_name: Philipp
full_name: Jung, Philipp
last_name: Jung
- first_name: Philipp
full_name: Hesse, Philipp
id: '60633'
last_name: Hesse
citation:
ama: 'Gräßler I, Mozgova I, Pottebaum J, Ott M, Jung P, Hesse P. Handling of uncertainties
in the design of sustainable Additive Manufacturing products by merging Design-for-X
and Scenario-Technique. In: 17th CIRP Conference on Intelligent Computation
in Manufacturing Engineering. Vol 126. Procedia CIRP. Elsevier; 2024:549-554.
doi:10.1016/j.procir.2024.08.238'
apa: Gräßler, I., Mozgova, I., Pottebaum, J., Ott, M., Jung, P., & Hesse, P.
(2024). Handling of uncertainties in the design of sustainable Additive Manufacturing
products by merging Design-for-X and Scenario-Technique. 17th CIRP Conference
on Intelligent Computation in Manufacturing Engineering, 126, 549–554.
https://doi.org/10.1016/j.procir.2024.08.238
bibtex: '@inproceedings{Gräßler_Mozgova_Pottebaum_Ott_Jung_Hesse_2024, series={Procedia
CIRP}, title={Handling of uncertainties in the design of sustainable Additive
Manufacturing products by merging Design-for-X and Scenario-Technique}, volume={126},
DOI={10.1016/j.procir.2024.08.238},
booktitle={17th CIRP Conference on Intelligent Computation in Manufacturing Engineering},
publisher={Elsevier}, author={Gräßler, Iris and Mozgova, Iryna and Pottebaum,
Jens and Ott, Manuel and Jung, Philipp and Hesse, Philipp}, year={2024}, pages={549–554},
collection={Procedia CIRP} }'
chicago: Gräßler, Iris, Iryna Mozgova, Jens Pottebaum, Manuel Ott, Philipp Jung,
and Philipp Hesse. “Handling of Uncertainties in the Design of Sustainable Additive
Manufacturing Products by Merging Design-for-X and Scenario-Technique.” In 17th
CIRP Conference on Intelligent Computation in Manufacturing Engineering, 126:549–54.
Procedia CIRP. Elsevier, 2024. https://doi.org/10.1016/j.procir.2024.08.238.
ieee: 'I. Gräßler, I. Mozgova, J. Pottebaum, M. Ott, P. Jung, and P. Hesse, “Handling
of uncertainties in the design of sustainable Additive Manufacturing products
by merging Design-for-X and Scenario-Technique,” in 17th CIRP Conference on
Intelligent Computation in Manufacturing Engineering, Gulf of Naples, 2024,
vol. 126, pp. 549–554, doi: 10.1016/j.procir.2024.08.238.'
mla: Gräßler, Iris, et al. “Handling of Uncertainties in the Design of Sustainable
Additive Manufacturing Products by Merging Design-for-X and Scenario-Technique.”
17th CIRP Conference on Intelligent Computation in Manufacturing Engineering,
vol. 126, Elsevier, 2024, pp. 549–54, doi:10.1016/j.procir.2024.08.238.
short: 'I. Gräßler, I. Mozgova, J. Pottebaum, M. Ott, P. Jung, P. Hesse, in: 17th
CIRP Conference on Intelligent Computation in Manufacturing Engineering, Elsevier,
2024, pp. 549–554.'
conference:
end_date: 2023-07-14
location: Gulf of Naples
name: 17th CIRP Conference on Intelligent Computation in Manufacturing Engineering
start_date: 2023-07-11
date_created: 2023-08-08T07:42:04Z
date_updated: 2024-11-21T10:13:30Z
department:
- _id: '152'
- _id: '741'
doi: 10.1016/j.procir.2024.08.238
intvolume: ' 126'
keyword:
- Design-for-X
- Scenario-Technique
- sustainability
- uncertainty
- Life-Cycle Engineering
- Additive Manufacturing
- Circular Economy
language:
- iso: eng
main_file_link:
- open_access: '1'
oa: '1'
page: 549-554
project:
- _id: '519'
name: 'BIKINI: BIKINI - Bionik und KI für nachhaltige Integration von Produktentwicklung
für einen ressourceneffizienten Leichtbau'
publication: 17th CIRP Conference on Intelligent Computation in Manufacturing Engineering
publication_status: published
publisher: Elsevier
quality_controlled: '1'
series_title: Procedia CIRP
status: public
title: Handling of uncertainties in the design of sustainable Additive Manufacturing
products by merging Design-for-X and Scenario-Technique
type: conference
user_id: '405'
volume: 126
year: '2024'
...
---
_id: '57699'
abstract:
- lang: eng
text: The optimization of process parameters in powder Directed Energy Deposition
(DED) is essential for achieving consistent, high-quality bead geometries, which
directly influence the performance and structural integrity of fabricated components.
As a subset of additive manufacturing (AM), the DED process, also referred to
as laser metal deposition (LMD), enables precise, layer-by-layer material deposition,
making it highly suitable for complex geometries and part repair applications.
Critical parameters, such as the laser power, feed rate, powder mass flow, and
substrate temperature govern the deposition process, impacting the bead height,
width, contact angle, and dilution. Inconsistent control over these variables
can lead to defects, such as poor bonding, dimensional inaccuracies, and material
weaknesses, ultimately compromising the final product. This paper investigates
the effects of various process parameters, specifically the substrate temperature,
on bead track geometry in DED processes for stainless steel (1.4404). A specialized
experimental setup, integrated within a DED machine, facilitates the controlled
thermal conditioning of sample sheets. Using Design of Experiments (DoE) methods,
individual bead marks are generated and analyzed to assess geometric characteristics.
Regression models, including both linear and quadratic approaches, are constructed
to predict machine parameters for achieving the desired bead geometry at different
substrate temperatures. Validation experiments confirm the accuracy and reliability
of the models, particularly in predicting the bead height, bead width, and contact
angle across a broad range of substrate temperatures. However, the models demonstrated
limitations in accurately predicting dilution, indicating the need for further
refinement. Despite some deviations in measured values, successful fabrication
is achieved, demonstrating robust bonding between the bead and substrate. The
developed models offer insights into optimizing DED process parameters to achieve
desired bead characteristics, advancing the precision and reliability of additive
manufacturing technology. Future work will focus on refining the regression models
to improve predictions, particularly for dilution, and further investigate non-linear
interactions between process variables.
article_number: '1353'
article_type: original
author:
- first_name: Deviprasad
full_name: Chalicheemalapalli Jayasankar, Deviprasad
id: '49504'
last_name: Chalicheemalapalli Jayasankar
orcid: https://orcid.org/ 0000-0002-3446-2444
- first_name: Stefan
full_name: Gnaase, Stefan
id: '25730'
last_name: Gnaase
- first_name: Dennis
full_name: Lehnert, Dennis
id: '90491'
last_name: Lehnert
- first_name: Artur
full_name: Walter, Artur
last_name: Walter
- first_name: Robin
full_name: Rohling, Robin
last_name: Rohling
- first_name: Thomas
full_name: Tröster, Thomas
id: '553'
last_name: Tröster
citation:
ama: 'Chalicheemalapalli Jayasankar D, Gnaase S, Lehnert D, Walter A, Rohling R,
Tröster T. Effect of Substrate Temperature on Bead Track Geometry of 316L in Directed
Energy Deposition: Investigation and Regression Modeling. Metals. 2024;14(12).
doi:10.3390/met14121353'
apa: 'Chalicheemalapalli Jayasankar, D., Gnaase, S., Lehnert, D., Walter, A., Rohling,
R., & Tröster, T. (2024). Effect of Substrate Temperature on Bead Track Geometry
of 316L in Directed Energy Deposition: Investigation and Regression Modeling.
Metals, 14(12), Article 1353. https://doi.org/10.3390/met14121353'
bibtex: '@article{Chalicheemalapalli Jayasankar_Gnaase_Lehnert_Walter_Rohling_Tröster_2024,
title={Effect of Substrate Temperature on Bead Track Geometry of 316L in Directed
Energy Deposition: Investigation and Regression Modeling}, volume={14}, DOI={10.3390/met14121353}, number={121353},
journal={Metals}, publisher={MDPI AG}, author={Chalicheemalapalli Jayasankar,
Deviprasad and Gnaase, Stefan and Lehnert, Dennis and Walter, Artur and Rohling,
Robin and Tröster, Thomas}, year={2024} }'
chicago: 'Chalicheemalapalli Jayasankar, Deviprasad, Stefan Gnaase, Dennis Lehnert,
Artur Walter, Robin Rohling, and Thomas Tröster. “Effect of Substrate Temperature
on Bead Track Geometry of 316L in Directed Energy Deposition: Investigation and
Regression Modeling.” Metals 14, no. 12 (2024). https://doi.org/10.3390/met14121353.'
ieee: 'D. Chalicheemalapalli Jayasankar, S. Gnaase, D. Lehnert, A. Walter, R. Rohling,
and T. Tröster, “Effect of Substrate Temperature on Bead Track Geometry of 316L
in Directed Energy Deposition: Investigation and Regression Modeling,” Metals,
vol. 14, no. 12, Art. no. 1353, 2024, doi: 10.3390/met14121353.'
mla: 'Chalicheemalapalli Jayasankar, Deviprasad, et al. “Effect of Substrate Temperature
on Bead Track Geometry of 316L in Directed Energy Deposition: Investigation and
Regression Modeling.” Metals, vol. 14, no. 12, 1353, MDPI AG, 2024, doi:10.3390/met14121353.'
short: D. Chalicheemalapalli Jayasankar, S. Gnaase, D. Lehnert, A. Walter, R. Rohling,
T. Tröster, Metals 14 (2024).
date_created: 2024-12-10T12:13:23Z
date_updated: 2026-03-20T08:44:28Z
ddc:
- '670'
department:
- _id: '321'
- _id: '149'
- _id: '9'
doi: 10.3390/met14121353
has_accepted_license: '1'
intvolume: ' 14'
issue: '12'
keyword:
- additive manufacturing
- direct energy deposition
- laser metal deposition
language:
- iso: eng
main_file_link:
- open_access: '1'
url: https://www.mdpi.com/2075-4701/14/12/1353
oa: '1'
publication: Metals
publication_identifier:
issn:
- 2075-4701
publication_status: published
publisher: MDPI AG
quality_controlled: '1'
status: public
title: 'Effect of Substrate Temperature on Bead Track Geometry of 316L in Directed
Energy Deposition: Investigation and Regression Modeling'
type: journal_article
user_id: '49504'
volume: 14
year: '2024'
...
---
_id: '56089'
abstract:
- lang: eng
text: Additive manufacturing (AM) technologies enable near-net-shape designs
and demand-oriented material usage, which significantly minimizes waste. This
points to a substantial opportunity for further optimization in material savings
and process design. The current study delves into the advancement of sustainable
manufacturing practices in the automotive industry, emphasizing the crucial role
of lightweight construction concepts and AM technologies in enhancing resource
efficiency and reducing greenhouse gas emissions. By exploring the integration
of novel AM techniques such as selective laser melting (SLM) and laser metal deposition
(LMD), the study aims to overcome existing limitations like slow build-up rates
and limited component resolution. The study’s core objective revolves around the
development and validation of a continuous process chain that synergizes different
AM routes. In the current study, the continuous process chain for DMG MORI Lasertec
65 3D’s LMD system and the DMG MORI Lasertec 30 3D’s was demonstrated using 316L
and 1.2709 steel materials. This integrated approach is designed to significantly
curtail process times and minimize component costs, thus suggesting an industry-oriented
process chain for future manufacturing paradigms. Additionally, the research investigates
the production and material behavior of components under varying manufacturing
processes, material combinations, and boundary layer materials. The culmination
of this study is the validation of the proposed process route through a technology
demonstrator, assessing its scalability and setting a benchmark for resource-efficient
manufacturing in the automotive sector.
article_number: '772'
article_type: original
author:
- first_name: Deviprasad
full_name: Chalicheemalapalli Jayasankar, Deviprasad
id: '49504'
last_name: Chalicheemalapalli Jayasankar
orcid: https://orcid.org/ 0000-0002-3446-2444
- first_name: Stefan
full_name: Gnaase, Stefan
id: '25730'
last_name: Gnaase
- first_name: Maximilian Alexander
full_name: Kaiser, Maximilian Alexander
id: '72351'
last_name: Kaiser
orcid: 0009-0008-1333-3396
- first_name: Dennis
full_name: Lehnert, Dennis
id: '90491'
last_name: Lehnert
- first_name: Thomas
full_name: Tröster, Thomas
id: '553'
last_name: Tröster
citation:
ama: 'Chalicheemalapalli Jayasankar D, Gnaase S, Kaiser MA, Lehnert D, Tröster T.
Advancements in Hybrid Additive Manufacturing: Integrating SLM and LMD for High-Performance
Applications. Metals. 2024;14(7). doi:10.3390/met14070772'
apa: 'Chalicheemalapalli Jayasankar, D., Gnaase, S., Kaiser, M. A., Lehnert, D.,
& Tröster, T. (2024). Advancements in Hybrid Additive Manufacturing: Integrating
SLM and LMD for High-Performance Applications. Metals, 14(7), Article
772. https://doi.org/10.3390/met14070772'
bibtex: '@article{Chalicheemalapalli Jayasankar_Gnaase_Kaiser_Lehnert_Tröster_2024,
title={Advancements in Hybrid Additive Manufacturing: Integrating SLM and LMD
for High-Performance Applications}, volume={14}, DOI={10.3390/met14070772},
number={7772}, journal={Metals}, publisher={MDPI AG}, author={Chalicheemalapalli
Jayasankar, Deviprasad and Gnaase, Stefan and Kaiser, Maximilian Alexander and
Lehnert, Dennis and Tröster, Thomas}, year={2024} }'
chicago: 'Chalicheemalapalli Jayasankar, Deviprasad, Stefan Gnaase, Maximilian Alexander
Kaiser, Dennis Lehnert, and Thomas Tröster. “Advancements in Hybrid Additive Manufacturing:
Integrating SLM and LMD for High-Performance Applications.” Metals 14,
no. 7 (2024). https://doi.org/10.3390/met14070772.'
ieee: 'D. Chalicheemalapalli Jayasankar, S. Gnaase, M. A. Kaiser, D. Lehnert, and
T. Tröster, “Advancements in Hybrid Additive Manufacturing: Integrating SLM and
LMD for High-Performance Applications,” Metals, vol. 14, no. 7, Art. no.
772, 2024, doi: 10.3390/met14070772.'
mla: 'Chalicheemalapalli Jayasankar, Deviprasad, et al. “Advancements in Hybrid
Additive Manufacturing: Integrating SLM and LMD for High-Performance Applications.”
Metals, vol. 14, no. 7, 772, MDPI AG, 2024, doi:10.3390/met14070772.'
short: D. Chalicheemalapalli Jayasankar, S. Gnaase, M.A. Kaiser, D. Lehnert, T.
Tröster, Metals 14 (2024).
date_created: 2024-09-10T10:19:32Z
date_updated: 2026-03-20T08:44:23Z
department:
- _id: '9'
- _id: '321'
- _id: '149'
doi: 10.3390/met14070772
intvolume: ' 14'
issue: '7'
keyword:
- additive manufacturing (AM)
- selective laser melting (SLM)
- laser metal deposition (LMD)
- hybrid manufacturing
- process optimization
- 316L
- '1.2709'
language:
- iso: eng
main_file_link:
- open_access: '1'
url: https://www.mdpi.com/2075-4701/14/7/772
oa: '1'
publication: Metals
publication_identifier:
issn:
- 2075-4701
publication_status: published
publisher: MDPI AG
quality_controlled: '1'
status: public
title: 'Advancements in Hybrid Additive Manufacturing: Integrating SLM and LMD for
High-Performance Applications'
type: journal_article
user_id: '49504'
volume: 14
year: '2024'
...
---
_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: '48012'
abstract:
- lang: eng
text: '3D printing is a well-established technology with rapidly increasing usage
scenarios both in the industry and consumer context. The growing popularity of
3D printing has also attracted security researchers, who have analyzed possibilities
for weakening 3D models or stealing intellectual property from 3D models. We extend
these important aspects and provide the first comprehensive security analysis
of 3D printing data formats. We performed our systematic study on the example
of the 3D Manufacturing Format (3MF), which offers a large variety of features
that could lead to critical attacks. Based on 3MF’s features, we systematized
three attack goals: Data Exfiltration (dex), Denial of Service, and UI Spoofing
(uis). We achieve these goals by exploiting the complexity of 3MF, which is based
on the Open Packaging Conventions (OPC) format and uses XML to define 3D models.
In total, our analysis led to 352 tests. To create and run these tests automatically,
we implemented an open-source tool named 3MF Analyzer (tool), which helped us
evaluate 20 applications.'
author:
- first_name: Jost
full_name: Rossel, Jost
id: '58331'
last_name: Rossel
orcid: 0000-0002-3182-4059
- first_name: Vladislav
full_name: Mladenov, Vladislav
last_name: Mladenov
- first_name: Juraj
full_name: Somorovsky, Juraj
id: '83504'
last_name: Somorovsky
orcid: 0000-0002-3593-7720
citation:
ama: 'Rossel J, Mladenov V, Somorovsky J. Security Analysis of the 3MF Data Format.
In: Proceedings of the 26th International Symposium on Research in Attacks,
Intrusions and Defenses. ACM; 2023. doi:10.1145/3607199.3607216'
apa: Rossel, J., Mladenov, V., & Somorovsky, J. (2023). Security Analysis of
the 3MF Data Format. Proceedings of the 26th International Symposium on Research
in Attacks, Intrusions and Defenses. 26th International Symposium on Research
in Attacks, Intrusions and Defenses, Hongkong. https://doi.org/10.1145/3607199.3607216
bibtex: '@inproceedings{Rossel_Mladenov_Somorovsky_2023, title={Security Analysis
of the 3MF Data Format}, DOI={10.1145/3607199.3607216},
booktitle={Proceedings of the 26th International Symposium on Research in Attacks,
Intrusions and Defenses}, publisher={ACM}, author={Rossel, Jost and Mladenov,
Vladislav and Somorovsky, Juraj}, year={2023} }'
chicago: Rossel, Jost, Vladislav Mladenov, and Juraj Somorovsky. “Security Analysis
of the 3MF Data Format.” In Proceedings of the 26th International Symposium
on Research in Attacks, Intrusions and Defenses. ACM, 2023. https://doi.org/10.1145/3607199.3607216.
ieee: 'J. Rossel, V. Mladenov, and J. Somorovsky, “Security Analysis of the 3MF
Data Format,” presented at the 26th International Symposium on Research in Attacks,
Intrusions and Defenses, Hongkong, 2023, doi: 10.1145/3607199.3607216.'
mla: Rossel, Jost, et al. “Security Analysis of the 3MF Data Format.” Proceedings
of the 26th International Symposium on Research in Attacks, Intrusions and Defenses,
ACM, 2023, doi:10.1145/3607199.3607216.
short: 'J. Rossel, V. Mladenov, J. Somorovsky, in: Proceedings of the 26th International
Symposium on Research in Attacks, Intrusions and Defenses, ACM, 2023.'
conference:
end_date: 2023-10-18
location: Hongkong
name: 26th International Symposium on Research in Attacks, Intrusions and Defenses
start_date: 2023-10-16
date_created: 2023-10-11T13:42:09Z
date_updated: 2025-07-16T11:06:49Z
ddc:
- '000'
department:
- _id: '632'
doi: 10.1145/3607199.3607216
file:
- access_level: open_access
content_type: application/pdf
creator: jrossel
date_created: 2023-10-16T03:48:08Z
date_updated: 2024-09-05T11:14:40Z
file_id: '48065'
file_name: Security_Analysis_of_the_3mf_Data_Format.pdf
file_size: 1054999
relation: main_file
file_date_updated: 2024-09-05T11:14:40Z
has_accepted_license: '1'
keyword:
- Data Format Security
- 3D Manufacturing Format
- 3D Printing
- Additive Manufacturing
language:
- iso: eng
main_file_link:
- url: https://dl.acm.org/doi/abs/10.1145/3607199.3607216
oa: '1'
publication: Proceedings of the 26th International Symposium on Research in Attacks,
Intrusions and Defenses
publication_status: published
publisher: ACM
quality_controlled: '1'
status: public
title: Security Analysis of the 3MF Data Format
type: conference
user_id: '58331'
year: '2023'
...
---
_id: '36866'
abstract:
- lang: ger
text: "Die additive Fertigung bietet die Möglichkeit, digitale Prototypen dank der\r\nBesonderheit
der werkzeuglosen Fertigung schnellstmöglich in reale Strukturen\r\numzusetzen.
Dieses Verfahren kann jedoch nur dann mit optimaler Geschwindigkeit\r\ngenutzt
werden, wenn Engpässe wirksam vermieden werden können. Einer dieser\r\nEngpässe
ist der Konstruktionsprozess. Gerade im Bereich der additiven Fertigung\r\nsind
in letzter Zeit immer leistungsfähigere Softwarelösungen erschienen, die das\r\nDesign
für die additive Fertigung, einschließlich der meisten Computer-Aided-Design\r\n(CAD)-Aufgaben,
beschleunigen. In vielen Bereichen wird daher bereits versucht, so\r\nviele Schritte
wie möglich zu automatisieren, nicht selten unter Verwendung\r\nneuronaler Netze
und künstlicher Intelligenz. Dieser Beitrag zeigt am Beispiel einer\r\nautomatisierten
Strukturoptimierung eines Stuhls, warum das Nutzen neuronaler\r\nNetze im Konstruktionsprozess
sinnvoll ist, um die Bereiche der konventionellen\r\nTopologieoptimierung und
des Generative Design weiter zu verknüpfen und somit die\r\nProduktentwicklungszeit
zu reduzieren."
author:
- first_name: Manuel
full_name: Ott, Manuel
id: '44204'
last_name: Ott
- first_name: Niclas
full_name: Meihöfener, Niclas
last_name: Meihöfener
- first_name: Rainer
full_name: Koch, Rainer
last_name: Koch
citation:
ama: 'Ott M, Meihöfener N, Koch R. Neuronale Netze in der Konstruktion zur Ausschöpfung
der Potentiale additiver Fertigungstechnologien. In: Deutscher Verband für Materialforschung
und -prüfung e.V. , ed. Bericht 407 - 7. Tagung des DVM-Arbeitskreises Additiv
gefertigte Bauteile und Strukturen. Vol 7. Bericht 407 - 7. Tagung des DVM-Arbeitskreises
Additiv gefertigte Bauteile und Strukturen. ; 2022:91-106. doi:10.48447/ADD-2022-014'
apa: Ott, M., Meihöfener, N., & Koch, R. (2022). Neuronale Netze in der Konstruktion
zur Ausschöpfung der Potentiale additiver Fertigungstechnologien. In Deutscher
Verband für Materialforschung und -prüfung e.V. (Ed.), Bericht 407 - 7. Tagung
des DVM-Arbeitskreises Additiv gefertigte Bauteile und Strukturen (Vol. 7,
pp. 91–106). https://doi.org/10.48447/ADD-2022-014
bibtex: '@inproceedings{Ott_Meihöfener_Koch_2022, place={Berlin}, series={Bericht
407 - 7. Tagung des DVM-Arbeitskreises Additiv gefertigte Bauteile und Strukturen},
title={Neuronale Netze in der Konstruktion zur Ausschöpfung der Potentiale additiver
Fertigungstechnologien}, volume={7}, DOI={10.48447/ADD-2022-014},
booktitle={Bericht 407 - 7. Tagung des DVM-Arbeitskreises Additiv gefertigte Bauteile
und Strukturen}, author={Ott, Manuel and Meihöfener, Niclas and Koch, Rainer},
editor={Deutscher Verband für Materialforschung und -prüfung e.V. }, year={2022},
pages={91–106}, collection={Bericht 407 - 7. Tagung des DVM-Arbeitskreises Additiv
gefertigte Bauteile und Strukturen} }'
chicago: Ott, Manuel, Niclas Meihöfener, and Rainer Koch. “Neuronale Netze in der
Konstruktion zur Ausschöpfung der Potentiale additiver Fertigungstechnologien.”
In Bericht 407 - 7. Tagung des DVM-Arbeitskreises Additiv gefertigte Bauteile
und Strukturen, edited by Deutscher Verband für Materialforschung und -prüfung
e.V. , 7:91–106. Bericht 407 - 7. Tagung des DVM-Arbeitskreises Additiv gefertigte
Bauteile und Strukturen. Berlin, 2022. https://doi.org/10.48447/ADD-2022-014.
ieee: 'M. Ott, N. Meihöfener, and R. Koch, “Neuronale Netze in der Konstruktion
zur Ausschöpfung der Potentiale additiver Fertigungstechnologien,” in Bericht
407 - 7. Tagung des DVM-Arbeitskreises Additiv gefertigte Bauteile und Strukturen,
Berlin, 2022, vol. 7, pp. 91–106, doi: 10.48447/ADD-2022-014.'
mla: Ott, Manuel, et al. “Neuronale Netze in der Konstruktion zur Ausschöpfung der
Potentiale additiver Fertigungstechnologien.” Bericht 407 - 7. Tagung des DVM-Arbeitskreises
Additiv gefertigte Bauteile und Strukturen, edited by Deutscher Verband für
Materialforschung und -prüfung e.V. , vol. 7, 2022, pp. 91–106, doi:10.48447/ADD-2022-014.
short: 'M. Ott, N. Meihöfener, R. Koch, in: Deutscher Verband für Materialforschung
und -prüfung e.V. (Ed.), Bericht 407 - 7. Tagung des DVM-Arbeitskreises Additiv
gefertigte Bauteile und Strukturen, Berlin, 2022, pp. 91–106.'
conference:
end_date: 2022-11-09
location: Berlin
name: 7. Tagung des DVM-Arbeitskreises Additiv gefertigte Bauteile und Strukturen
start_date: 2022-11-08
corporate_editor:
- 'Deutscher Verband für Materialforschung und -prüfung e.V. '
date_created: 2023-01-16T08:42:28Z
date_updated: 2023-01-18T08:52:56Z
department:
- _id: '741'
- _id: '144'
doi: 10.48447/ADD-2022-014
intvolume: ' 7'
jel:
- L74
keyword:
- Künstliche Intelligenz
- Neuronale Netze
- 3D-Druck
- Design for Additive Manufacturing
language:
- iso: ger
page: 91-106
place: Berlin
publication: Bericht 407 - 7. Tagung des DVM-Arbeitskreises Additiv gefertigte Bauteile
und Strukturen
publication_status: published
series_title: Bericht 407 - 7. Tagung des DVM-Arbeitskreises Additiv gefertigte Bauteile
und Strukturen
status: public
title: Neuronale Netze in der Konstruktion zur Ausschöpfung der Potentiale additiver
Fertigungstechnologien
type: conference
user_id: '44204'
volume: 7
year: '2022'
...
---
_id: '24426'
author:
- first_name: Stefan
full_name: Urbanek, Stefan
last_name: Urbanek
- first_name: Frey
full_name: Pauline, Frey
last_name: Pauline
- first_name: Sebastian
full_name: Magerkohl, Sebastian
id: '28520'
last_name: Magerkohl
- first_name: Detmar
full_name: Zimmer, Detmar
id: '604'
last_name: Zimmer
- first_name: Lennart
full_name: Tasche, Lennart
last_name: Tasche
- first_name: Mirko
full_name: Schaper, Mirko
last_name: Schaper
- first_name: Bernd
full_name: Ponick, Bernd
last_name: Ponick
citation:
ama: 'Urbanek S, Pauline F, Magerkohl S, et al. Design and Experimental Investigation
of an Additively Manufactured PMSM Rotor. In: ; 2021. doi:10.1109/IEMDC47953.2021.9449566'
apa: Urbanek, S., Pauline, F., Magerkohl, S., Zimmer, D., Tasche, L., Schaper, M.,
& Ponick, B. (2021). Design and Experimental Investigation of an Additively
Manufactured PMSM Rotor. https://doi.org/10.1109/IEMDC47953.2021.9449566
bibtex: '@inproceedings{Urbanek_Pauline_Magerkohl_Zimmer_Tasche_Schaper_Ponick_2021,
title={Design and Experimental Investigation of an Additively Manufactured PMSM
Rotor}, DOI={10.1109/IEMDC47953.2021.9449566},
author={Urbanek, Stefan and Pauline, Frey and Magerkohl, Sebastian and Zimmer,
Detmar and Tasche, Lennart and Schaper, Mirko and Ponick, Bernd}, year={2021}
}'
chicago: Urbanek, Stefan, Frey Pauline, Sebastian Magerkohl, Detmar Zimmer, Lennart
Tasche, Mirko Schaper, and Bernd Ponick. “Design and Experimental Investigation
of an Additively Manufactured PMSM Rotor,” 2021. https://doi.org/10.1109/IEMDC47953.2021.9449566.
ieee: 'S. Urbanek et al., “Design and Experimental Investigation of an Additively
Manufactured PMSM Rotor,” Connecticut, USA, 2021, doi: 10.1109/IEMDC47953.2021.9449566.'
mla: Urbanek, Stefan, et al. Design and Experimental Investigation of an Additively
Manufactured PMSM Rotor. 2021, doi:10.1109/IEMDC47953.2021.9449566.
short: 'S. Urbanek, F. Pauline, S. Magerkohl, D. Zimmer, L. Tasche, M. Schaper,
B. Ponick, in: 2021.'
conference:
end_date: 2021-05-20
location: Connecticut, USA
start_date: 2021-05-17
date_created: 2021-09-14T13:12:32Z
date_updated: 2022-01-06T06:56:20Z
department:
- _id: '146'
- _id: '158'
doi: 10.1109/IEMDC47953.2021.9449566
keyword:
- Elektromotor
- Elektromaschine
- Additive Fertigung
- AF
- AM
- Additive Manufacturing
- DMRC
- KAt
language:
- iso: eng
main_file_link:
- url: https://ieeexplore.ieee.org/document/9449566
publication_status: published
status: public
title: Design and Experimental Investigation of an Additively Manufactured PMSM Rotor
type: conference
user_id: '28520'
year: '2021'
...
---
_id: '24589'
abstract:
- lang: eng
text: "Additive manufacturing, e.g. by laser powder bed fusion (LPBF), is very attractive
for lightweight constructions, as complex and stress-optimised structures integrating
multiple functions can be produced within one process. Unfortunately, high strength
AlZnMgCu alloys tend to hot cracking during LPBF\r\nand thus have not so far been
applicable. In this work the melting and solidification behaviour of\r\nAlZnMgCu
alloy powder variants with particle surface inoculation was analysed by Differential
Fast\r\nScanning Calorimetry. The aim is to establish a method that makes it possible
to assess powder modifications in terms of their suitability for LPBF on a laboratory
scale requiring only small amounts of powder.\r\nTherefore, solidification undercooling
is evaluated at cooling rates relevant for LPBF. A method for the\r\ntemperature
correction and normalisation of the DFSC results is proposed. Two ways of powder
modification were tested for the powder particles surface inoculation by titanium
carbide (TiC) nanoparticles:\r\nvia wet-chemical deposition and via mechanical
mixing.\r\nA low undercooling from DFSC correlates with a low number of cracks
of LPBF-manufactured cubes. It\r\nappears that a reduced undercooling combined
with reduced solidification onset scatter indicates the\r\npossibility of crack-free
LPBF of alloys that otherwise tend to hot cracking."
article_number: '109677'
article_type: original
author:
- first_name: Evgeny
full_name: Zhuravlev, Evgeny
last_name: Zhuravlev
- first_name: Benjamin
full_name: Milkereit, Benjamin
last_name: Milkereit
- first_name: Bin
full_name: Yang, Bin
last_name: Yang
- first_name: Steffen
full_name: Heiland, Steffen
last_name: Heiland
- first_name: Pascal
full_name: Vieth, Pascal
last_name: Vieth
- first_name: Markus
full_name: Voigt, Markus
last_name: Voigt
- first_name: Mirko
full_name: Schaper, Mirko
last_name: Schaper
- first_name: Guido
full_name: Grundmeier, Guido
last_name: Grundmeier
- first_name: Christoph
full_name: Schick, Christoph
last_name: Schick
- first_name: Olaf
full_name: Kessler, Olaf
last_name: Kessler
citation:
ama: Zhuravlev E, Milkereit B, Yang B, et al. Assessment of AlZnMgCu alloy powder
modification for crack-free laser powder bed fusion by differential fast scanning
calorimetry. Materials & Design. Published online 2021. doi:10.1016/j.matdes.2021.109677
apa: Zhuravlev, E., Milkereit, B., Yang, B., Heiland, S., Vieth, P., Voigt, M.,
Schaper, M., Grundmeier, G., Schick, C., & Kessler, O. (2021). Assessment
of AlZnMgCu alloy powder modification for crack-free laser powder bed fusion by
differential fast scanning calorimetry. Materials & Design, Article
109677. https://doi.org/10.1016/j.matdes.2021.109677
bibtex: '@article{Zhuravlev_Milkereit_Yang_Heiland_Vieth_Voigt_Schaper_Grundmeier_Schick_Kessler_2021,
title={Assessment of AlZnMgCu alloy powder modification for crack-free laser powder
bed fusion by differential fast scanning calorimetry}, DOI={10.1016/j.matdes.2021.109677},
number={109677}, journal={Materials & Design}, author={Zhuravlev, Evgeny and
Milkereit, Benjamin and Yang, Bin and Heiland, Steffen and Vieth, Pascal and Voigt,
Markus and Schaper, Mirko and Grundmeier, Guido and Schick, Christoph and Kessler,
Olaf}, year={2021} }'
chicago: Zhuravlev, Evgeny, Benjamin Milkereit, Bin Yang, Steffen Heiland, Pascal
Vieth, Markus Voigt, Mirko Schaper, Guido Grundmeier, Christoph Schick, and Olaf
Kessler. “Assessment of AlZnMgCu Alloy Powder Modification for Crack-Free Laser
Powder Bed Fusion by Differential Fast Scanning Calorimetry.” Materials &
Design, 2021. https://doi.org/10.1016/j.matdes.2021.109677.
ieee: 'E. Zhuravlev et al., “Assessment of AlZnMgCu alloy powder modification
for crack-free laser powder bed fusion by differential fast scanning calorimetry,”
Materials & Design, Art. no. 109677, 2021, doi: 10.1016/j.matdes.2021.109677.'
mla: Zhuravlev, Evgeny, et al. “Assessment of AlZnMgCu Alloy Powder Modification
for Crack-Free Laser Powder Bed Fusion by Differential Fast Scanning Calorimetry.”
Materials & Design, 109677, 2021, doi:10.1016/j.matdes.2021.109677.
short: E. Zhuravlev, B. Milkereit, B. Yang, S. Heiland, P. Vieth, M. Voigt, M. Schaper,
G. Grundmeier, C. Schick, O. Kessler, Materials & Design (2021).
date_created: 2021-09-17T08:38:58Z
date_updated: 2022-01-06T06:56:29Z
department:
- _id: '9'
- _id: '158'
- _id: '219'
doi: 10.1016/j.matdes.2021.109677
keyword:
- Aluminium alloy 7075
- Differential fast scanning calorimetry
- Solidification
- Undercooling
- Additive manufacturing
language:
- iso: eng
publication: Materials & Design
publication_identifier:
issn:
- 0264-1275
publication_status: published
status: public
title: Assessment of AlZnMgCu alloy powder modification for crack-free laser powder
bed fusion by differential fast scanning calorimetry
type: journal_article
user_id: '77250'
year: '2021'
...
---
_id: '21209'
abstract:
- lang: ger
text: "Die additive Fertigung mittels Laser Powderbed Fusion Verfahren (L-PBF) von
Metallen wird zunehmend genutzt, um Funktionsbauteile endkonturnah zu fertigen.
Die in der vor-liegenden Arbeit untersuchte Parameter- und Prozessoptimierung
liefert einen Beitrag zur wirtschaftlichen Nutzung des L-PBF und zeigt, dass höhere
Aufbauraten bei der ganzheit-lichen Betrachtung des Prozesses realisierbar sind.\r\nDie
Parameter- und Prozessoptimierung erfordert eine Untersuchung des Einflusses der
Fertigungs- und Nachbearbeitungsparameter auf das erzeugte Volumen sowie auf die
Mikrostruktur und die resultierenden Materialeigenschaften. Das Ziel der vorliegenden
Arbeit ist die Entwicklung einer optimierten Prozessführung mit abschließender
Bewer-tung der Wirtschaftlichkeit. Mit dem entwickelten Gesamtprozess wird eine
um den Faktor 1,6 höhere Aufbaurate erzielt. Des Weiteren wird die Methodik zur
Erarbeitung des opti-mierten Prozessfensters beschrieben, sodass die Herangehensweise
auf weitere Werk-stoffe angewendet werden kann. Die mechanischen Eigenschaften
werden für den stati-schen und dynamischen Lastfall untersucht und mit der Mikrostruktur
korreliert. Abschlie-ßend wird die Prozessoptimierung zur Fertigung eines Demonstrators
eingesetzt und wirtschaftlich validiert. Die Ergebnisse zeigen, dass durch das
hier angewendete Vorge-hen eine Prozesszeitreduktion von 22,5% und eine Kostenreduktion
von 11% realisiert werden kann."
author:
- first_name: Dominik
full_name: Ahlers, Dominik
id: '11207'
last_name: Ahlers
citation:
ama: Ahlers D. Parameter- und Prozessoptimierung für den additiven Fertigungsprozess
im Pulverbett am Beispiel der Legierung Ti6Al4V . Vol 19. Shaker; 2020.
apa: Ahlers, D. (2020). Parameter- und Prozessoptimierung für den additiven Fertigungsprozess
im Pulverbett am Beispiel der Legierung Ti6Al4V (Vol. 19). Shaker.
bibtex: '@book{Ahlers_2020, series={Forschungsberichte des Direct Manufacturing
Research Centers}, title={Parameter- und Prozessoptimierung für den additiven
Fertigungsprozess im Pulverbett am Beispiel der Legierung Ti6Al4V }, volume={19},
publisher={Shaker}, author={Ahlers, Dominik}, year={2020}, collection={Forschungsberichte
des Direct Manufacturing Research Centers} }'
chicago: Ahlers, Dominik. Parameter- und Prozessoptimierung für den additiven
Fertigungsprozess im Pulverbett am Beispiel der Legierung Ti6Al4V . Vol. 19.
Forschungsberichte des Direct Manufacturing Research Centers. Shaker, 2020.
ieee: D. Ahlers, Parameter- und Prozessoptimierung für den additiven Fertigungsprozess
im Pulverbett am Beispiel der Legierung Ti6Al4V , vol. 19. Shaker, 2020.
mla: Ahlers, Dominik. Parameter- und Prozessoptimierung für den additiven Fertigungsprozess
im Pulverbett am Beispiel der Legierung Ti6Al4V . Vol. 19, Shaker, 2020.
short: D. Ahlers, Parameter- und Prozessoptimierung für den additiven Fertigungsprozess
im Pulverbett am Beispiel der Legierung Ti6Al4V , Shaker, 2020.
date_created: 2021-02-12T09:15:01Z
date_updated: 2022-01-06T06:54:49Z
department:
- _id: '9'
- _id: '149'
- _id: '321'
- _id: '219'
intvolume: ' 19'
keyword:
- Additive Manufacturing
- SLM
language:
- iso: ger
page: '137'
publication_identifier:
isbn:
- 978-3844074246
- '3844074244'
publication_status: published
publisher: Shaker
series_title: Forschungsberichte des Direct Manufacturing Research Centers
status: public
title: 'Parameter- und Prozessoptimierung für den additiven Fertigungsprozess im Pulverbett
am Beispiel der Legierung Ti6Al4V '
type: dissertation
user_id: '11207'
volume: 19
year: '2020'
...
---
_id: '24753'
abstract:
- lang: eng
text: Polymer Laser Sintering (LS) is one of the most used Additive Manufacturing
(AM) technologies for the tool-less production of polymer parts. The raw material
is a polymer powder which is melted layerwise by the use of laser energy. Especially
for the production of single parts, small series, individualized and complex structures,
the technology is yet established in few branches. However, inhomogeneous and
hardly controllable thermal effects during manufacturing limit the build reproducibility.
The present work focuses on temperatures within so-called part cakes, their time
dependency and their influence on process quality. Therefore, a temperature measurement
system is implemented into a commercial laser sintering machine. Based on the
experimental data a model to simulate heat transfer within part cakes is set up.
Individual thermal histories during processing are successfully correlated with
position dependent powder ageing effects. Another focus is on the analysis of
a recycling optimized material. First results of correlations between thermal
histories and part properties are shown in order to provide an outlook to further
research. The data and knowledge gained through this work can be used to understand
thermal effects in greater depth and to increase the process quality via optimizations.
author:
- first_name: Stefan
full_name: Josupeit, Stefan
last_name: Josupeit
citation:
ama: Josupeit S. On the Influence of Thermal Histories within Part Cakes on the
Polymer Laser Sintering Process. Vol 11. Shaker Verlag GmbH; 2019.
apa: Josupeit, S. (2019). On the Influence of Thermal Histories within Part Cakes
on the Polymer Laser Sintering Process (Vol. 11). Shaker Verlag GmbH.
bibtex: '@book{Josupeit_2019, place={Düren}, series={Forschungsberichte des Direct
Manufacturing Research Centers}, title={On the Influence of Thermal Histories
within Part Cakes on the Polymer Laser Sintering Process}, volume={11}, publisher={Shaker
Verlag GmbH}, author={Josupeit, Stefan}, year={2019}, collection={Forschungsberichte
des Direct Manufacturing Research Centers} }'
chicago: 'Josupeit, Stefan. On the Influence of Thermal Histories within Part
Cakes on the Polymer Laser Sintering Process. Vol. 11. Forschungsberichte
Des Direct Manufacturing Research Centers. Düren: Shaker Verlag GmbH, 2019.'
ieee: 'S. Josupeit, On the Influence of Thermal Histories within Part Cakes on
the Polymer Laser Sintering Process, vol. 11. Düren: Shaker Verlag GmbH, 2019.'
mla: Josupeit, Stefan. On the Influence of Thermal Histories within Part Cakes
on the Polymer Laser Sintering Process. Shaker Verlag GmbH, 2019.
short: S. Josupeit, On the Influence of Thermal Histories within Part Cakes on the
Polymer Laser Sintering Process, Shaker Verlag GmbH, Düren, 2019.
date_created: 2021-09-21T11:23:29Z
date_updated: 2022-01-06T06:56:34Z
department:
- _id: '150'
- _id: '624'
- _id: '219'
intvolume: ' 11'
keyword:
- Additive Manufacturing
- Polymer Laser Sintering
- Polymer Science
language:
- iso: eng
main_file_link:
- url: https://www.shaker.de/de/content/catalogue/index.asp?lang=de&ID=8&ISBN=978-3-8440-6720-0&search=yes
page: '178'
place: Düren
publication_identifier:
isbn:
- 978-3-8440-6720-0
publisher: Shaker Verlag GmbH
series_title: Forschungsberichte des Direct Manufacturing Research Centers
status: public
supervisor:
- first_name: Hans-Joachim
full_name: Schmid, Hans-Joachim
id: '464'
last_name: Schmid
title: On the Influence of Thermal Histories within Part Cakes on the Polymer Laser
Sintering Process
type: dissertation
user_id: '71545'
volume: 11
year: '2019'
...