---
_id: '62021'
author:
- first_name: Lukas
full_name: Kersting, Lukas
last_name: Kersting
- first_name: Bahman
full_name: Arian, Bahman
id: '36287'
last_name: Arian
- first_name: Julian
full_name: Rozo Vasquez, Julian
last_name: Rozo Vasquez
- first_name: Ansgar
full_name: Trächtler, Ansgar
id: '552'
last_name: Trächtler
- first_name: Werner
full_name: Homberg, Werner
id: '233'
last_name: Homberg
- first_name: Frank
full_name: Walther, Frank
last_name: Walther
citation:
ama: Kersting L, Arian B, Rozo Vasquez J, Trächtler A, Homberg W, Walther F. State-space
modelling approach for control and observer design in property-controlled reverse
flow forming. IFAC-PapersOnLine. 2025;59(1):109-114. doi:10.1016/j.ifacol.2025.03.020
apa: Kersting, L., Arian, B., Rozo Vasquez, J., Trächtler, A., Homberg, W., &
Walther, F. (2025). State-space modelling approach for control and observer design
in property-controlled reverse flow forming. IFAC-PapersOnLine, 59(1),
109–114. https://doi.org/10.1016/j.ifacol.2025.03.020
bibtex: '@article{Kersting_Arian_Rozo Vasquez_Trächtler_Homberg_Walther_2025, title={State-space
modelling approach for control and observer design in property-controlled reverse
flow forming}, volume={59}, DOI={10.1016/j.ifacol.2025.03.020},
number={1}, journal={IFAC-PapersOnLine}, publisher={Elsevier BV}, author={Kersting,
Lukas and Arian, Bahman and Rozo Vasquez, Julian and Trächtler, Ansgar and Homberg,
Werner and Walther, Frank}, year={2025}, pages={109–114} }'
chicago: 'Kersting, Lukas, Bahman Arian, Julian Rozo Vasquez, Ansgar Trächtler,
Werner Homberg, and Frank Walther. “State-Space Modelling Approach for Control
and Observer Design in Property-Controlled Reverse Flow Forming.” IFAC-PapersOnLine
59, no. 1 (2025): 109–14. https://doi.org/10.1016/j.ifacol.2025.03.020.'
ieee: 'L. Kersting, B. Arian, J. Rozo Vasquez, A. Trächtler, W. Homberg, and F.
Walther, “State-space modelling approach for control and observer design in property-controlled
reverse flow forming,” IFAC-PapersOnLine, vol. 59, no. 1, pp. 109–114,
2025, doi: 10.1016/j.ifacol.2025.03.020.'
mla: Kersting, Lukas, et al. “State-Space Modelling Approach for Control and Observer
Design in Property-Controlled Reverse Flow Forming.” IFAC-PapersOnLine,
vol. 59, no. 1, Elsevier BV, 2025, pp. 109–14, doi:10.1016/j.ifacol.2025.03.020.
short: L. Kersting, B. Arian, J. Rozo Vasquez, A. Trächtler, W. Homberg, F. Walther,
IFAC-PapersOnLine 59 (2025) 109–114.
date_created: 2025-10-30T12:14:01Z
date_updated: 2025-10-30T12:53:16Z
department:
- _id: '153'
- _id: '241'
- _id: '156'
doi: 10.1016/j.ifacol.2025.03.020
intvolume: ' 59'
issue: '1'
language:
- iso: eng
main_file_link:
- open_access: '1'
url: 'https://doi.org/10.1016/j.ifacol.2025.03.020 '
oa: '1'
page: 109-114
publication: IFAC-PapersOnLine
publication_identifier:
issn:
- 2405-8963
publication_status: published
publisher: Elsevier BV
status: public
title: State-space modelling approach for control and observer design in property-controlled
reverse flow forming
type: journal_article
user_id: '82875'
volume: 59
year: '2025'
...
---
_id: '63347'
abstract:
- lang: eng
text: Friction-spinning is an incremental thermomechanical forming process
that has huge potential due to its simple yet effective mechanism of utilising
friction between a rotating workpiece and a forming tool to increase the workpiece’s
temperature, which reduces the required forces and increases formability during
the forming process. Despite the simplicity of the process’s setup, the thermomechanical
loads and high relative velocities involved, especially in the contact zone, make
the application of classical methods for characterising friction inaccurate. It
is therefore essential to find a way to describe the frictional behaviour under
real process conditions to be able to gain a holistic understanding of the process
and the effect of the adjustable parameters on the outcome, especially the temperature.
To achieve this goal, an experimental setup that considers the actual process
boundary conditions in forming tubes made of EN AW-6060 was used to measure in
situ normal and frictional forces, in addition to process temperatures, under
varying rotational speed and feed rate values.
article_number: '302'
author:
- first_name: Eugen
full_name: Wiens, Eugen
id: '7888'
last_name: Wiens
- first_name: Dina
full_name: Hijazi, Dina
last_name: Hijazi
- first_name: Maik
full_name: Jüttner, Maik
last_name: Jüttner
- first_name: Werner
full_name: Homberg, Werner
id: '233'
last_name: Homberg
- first_name: Mark Dennis
full_name: Kensy, Mark Dennis
last_name: Kensy
- first_name: Wolfgang
full_name: Tillmann, Wolfgang
last_name: Tillmann
citation:
ama: Wiens E, Hijazi D, Jüttner M, Homberg W, Kensy MD, Tillmann W. In Situ Investigation
of the Frictional Behaviour in Friction-Spinning. Journal of Manufacturing
and Materials Processing. 2025;9(9). doi:10.3390/jmmp9090302
apa: Wiens, E., Hijazi, D., Jüttner, M., Homberg, W., Kensy, M. D., & Tillmann,
W. (2025). In Situ Investigation of the Frictional Behaviour in Friction-Spinning.
Journal of Manufacturing and Materials Processing, 9(9), Article
302. https://doi.org/10.3390/jmmp9090302
bibtex: '@article{Wiens_Hijazi_Jüttner_Homberg_Kensy_Tillmann_2025, title={In Situ
Investigation of the Frictional Behaviour in Friction-Spinning}, volume={9}, DOI={10.3390/jmmp9090302}, number={9302},
journal={Journal of Manufacturing and Materials Processing}, publisher={MDPI AG},
author={Wiens, Eugen and Hijazi, Dina and Jüttner, Maik and Homberg, Werner and
Kensy, Mark Dennis and Tillmann, Wolfgang}, year={2025} }'
chicago: Wiens, Eugen, Dina Hijazi, Maik Jüttner, Werner Homberg, Mark Dennis Kensy,
and Wolfgang Tillmann. “In Situ Investigation of the Frictional Behaviour in Friction-Spinning.”
Journal of Manufacturing and Materials Processing 9, no. 9 (2025). https://doi.org/10.3390/jmmp9090302.
ieee: 'E. Wiens, D. Hijazi, M. Jüttner, W. Homberg, M. D. Kensy, and W. Tillmann,
“In Situ Investigation of the Frictional Behaviour in Friction-Spinning,” Journal
of Manufacturing and Materials Processing, vol. 9, no. 9, Art. no. 302, 2025,
doi: 10.3390/jmmp9090302.'
mla: Wiens, Eugen, et al. “In Situ Investigation of the Frictional Behaviour in
Friction-Spinning.” Journal of Manufacturing and Materials Processing,
vol. 9, no. 9, 302, MDPI AG, 2025, doi:10.3390/jmmp9090302.
short: E. Wiens, D. Hijazi, M. Jüttner, W. Homberg, M.D. Kensy, W. Tillmann, Journal
of Manufacturing and Materials Processing 9 (2025).
date_created: 2025-12-19T10:05:03Z
date_updated: 2025-12-22T10:39:34Z
department:
- _id: '156'
doi: 10.3390/jmmp9090302
intvolume: ' 9'
issue: '9'
language:
- iso: eng
publication: Journal of Manufacturing and Materials Processing
publication_identifier:
issn:
- 2504-4494
publication_status: published
publisher: MDPI AG
quality_controlled: '1'
status: public
title: In Situ Investigation of the Frictional Behaviour in Friction-Spinning
type: journal_article
user_id: '7888'
volume: 9
year: '2025'
...
---
_id: '59894'
abstract:
- lang: eng
text: 'Abstract. This study presents intrinsic lubrication as a novel approach
to deep drawing processes, using additively manufactured, lubricant-permeable
tools to minimize lubricant consumption and improve efficiency. Two systems were
evaluated: a passive system based on capillary action and gravity, and an active
system using pumped delivery for precise, on-demand application. Experimental
tests were conducted on micro-bores (0.2-0.5 mm) to demonstrate their suitability
for lubricant transport. Smaller bores have excellent capillary action but are
prone to clogging, while larger bores offer higher permeability. The passive system
is resource-efficient but requires adjustments to counteract gravitational asymmetry.
The active system provides consistent lubricant distribution but is more complex.
These findings provide a basis for optimizing intrinsic lubrication systems.'
author:
- first_name: Ermir
full_name: Cakici, Ermir
id: '79551'
last_name: Cakici
- first_name: Werner
full_name: Homberg, Werner
id: '233'
last_name: Homberg
citation:
ama: 'Cakici E, Homberg W. Intrinsic lubrication: A new approach in the context
of the deep drawing process. In: Materials Research Proceedings. Vol 54.
Materials Research Forum LLC; 2025. doi:10.21741/9781644903599-122'
apa: 'Cakici, E., & Homberg, W. (2025). Intrinsic lubrication: A new approach
in the context of the deep drawing process. Materials Research Proceedings,
54. https://doi.org/10.21741/9781644903599-122'
bibtex: '@inproceedings{Cakici_Homberg_2025, title={Intrinsic lubrication: A new
approach in the context of the deep drawing process}, volume={54}, DOI={10.21741/9781644903599-122},
booktitle={Materials Research Proceedings}, publisher={Materials Research Forum
LLC}, author={Cakici, Ermir and Homberg, Werner}, year={2025} }'
chicago: 'Cakici, Ermir, and Werner Homberg. “Intrinsic Lubrication: A New Approach
in the Context of the Deep Drawing Process.” In Materials Research Proceedings,
Vol. 54. Materials Research Forum LLC, 2025. https://doi.org/10.21741/9781644903599-122.'
ieee: 'E. Cakici and W. Homberg, “Intrinsic lubrication: A new approach in the context
of the deep drawing process,” in Materials Research Proceedings, Paestum,
Italien, 2025, vol. 54, doi: 10.21741/9781644903599-122.'
mla: 'Cakici, Ermir, and Werner Homberg. “Intrinsic Lubrication: A New Approach
in the Context of the Deep Drawing Process.” Materials Research Proceedings,
vol. 54, Materials Research Forum LLC, 2025, doi:10.21741/9781644903599-122.'
short: 'E. Cakici, W. Homberg, in: Materials Research Proceedings, Materials Research
Forum LLC, 2025.'
conference:
end_date: 2025-05-09
location: Paestum, Italien
name: The 28th International ESAFORM Conference on Material Forming - ESAFORM 2025
start_date: 2025-05-07
date_created: 2025-05-14T08:53:41Z
date_updated: 2026-04-16T08:33:32Z
department:
- _id: '156'
- _id: '321'
doi: 10.21741/9781644903599-122
intvolume: ' 54'
language:
- iso: eng
main_file_link:
- url: https://mrforum.com/product/9781644903599-122/
publication: Materials Research Proceedings
publication_identifier:
issn:
- 2474-395X
publication_status: published
publisher: Materials Research Forum LLC
quality_controlled: '1'
status: public
title: 'Intrinsic lubrication: A new approach in the context of the deep drawing process'
type: conference
user_id: '79551'
volume: 54
year: '2025'
...
---
_id: '53638'
abstract:
- lang: eng
text: Abstract. Spring steel wires are usually supplied and stored on coils.
The manufacturing and coiling processes of these wires induce inhomogeneous plastic
deformations that lead to undesirable residual stresses and varying wire curvatures
in the semi-finished product. These residual stresses and curvatures defects are
causing varying process conditions in the subsequent manufacturing processes,
which have a negative impact on the product quality, leading to wastage and thus
affecting the economic and ecological efficiency. Especially the curvature deviations
must be compensated for the stability of the subsequent processes. This is usually
realised with roller straighteners, which are set manually by the machine operators
only at the beginning of a process. In this paper, we introduce a new approach
with a modular straightening-machine design and a new set-up process. The more
isolated deformation behaviour in a module-based straightener overcomes the complexity
of interactions between the close-positioned spaced straightening rollers. This
is combined with a set-up process that is independent of conventional material
testing, modelling the actual and batch-specific behaviour of the wire in the
straightening process. The exact knowledge and time-consuming determination of
the material properties thus becomes obsolete. The experimental investigations
show the influence of defined straightening strategies on the residual stress
evolution and the residual forming limit of the spring steel wires (X10CrNi18-8)
in the new straightening process.
author:
- first_name: Frederik Simon
full_name: Dahms, Frederik Simon
id: '64977'
last_name: Dahms
- first_name: Werner
full_name: Homberg, Werner
id: '233'
last_name: Homberg
citation:
ama: 'Dahms FS, Homberg W. Modular 3D roller straightening – A new approach to straightening
and forming of spring steel wires (X10CrNi18-8). In: Materials Research Proceedings.
Materials Research Forum LLC; 2024. doi:10.21741/9781644903131-154'
apa: Dahms, F. S., & Homberg, W. (2024). Modular 3D roller straightening – A
new approach to straightening and forming of spring steel wires (X10CrNi18-8).
Materials Research Proceedings. ESAFORM2024, Toulouse. https://doi.org/10.21741/9781644903131-154
bibtex: '@inproceedings{Dahms_Homberg_2024, title={Modular 3D roller straightening
– A new approach to straightening and forming of spring steel wires (X10CrNi18-8)},
DOI={10.21741/9781644903131-154},
booktitle={Materials Research Proceedings}, publisher={Materials Research Forum
LLC}, author={Dahms, Frederik Simon and Homberg, Werner}, year={2024} }'
chicago: Dahms, Frederik Simon, and Werner Homberg. “Modular 3D Roller Straightening
– A New Approach to Straightening and Forming of Spring Steel Wires (X10CrNi18-8).”
In Materials Research Proceedings. Materials Research Forum LLC, 2024.
https://doi.org/10.21741/9781644903131-154.
ieee: 'F. S. Dahms and W. Homberg, “Modular 3D roller straightening – A new approach
to straightening and forming of spring steel wires (X10CrNi18-8),” presented at
the ESAFORM2024, Toulouse, 2024, doi: 10.21741/9781644903131-154.'
mla: Dahms, Frederik Simon, and Werner Homberg. “Modular 3D Roller Straightening
– A New Approach to Straightening and Forming of Spring Steel Wires (X10CrNi18-8).”
Materials Research Proceedings, Materials Research Forum LLC, 2024, doi:10.21741/9781644903131-154.
short: 'F.S. Dahms, W. Homberg, in: Materials Research Proceedings, Materials Research
Forum LLC, 2024.'
conference:
location: Toulouse
name: ESAFORM2024
date_created: 2024-04-25T08:29:20Z
date_updated: 2024-05-27T08:16:18Z
department:
- _id: '156'
doi: 10.21741/9781644903131-154
language:
- iso: eng
publication: Materials Research Proceedings
publication_identifier:
issn:
- 2474-395X
publication_status: published
publisher: Materials Research Forum LLC
quality_controlled: '1'
status: public
title: Modular 3D roller straightening – A new approach to straightening and forming
of spring steel wires (X10CrNi18-8)
type: conference
user_id: '64977'
year: '2024'
...
---
_id: '57190'
abstract:
- lang: eng
text: This paper deals with the modeling of a soft sensor for detecting α’-martensite
evolution from the micromagnetic signals that are measured during the reverse
flow forming of metastable AISI 304L austenitic steel. This model can be prospectively
used inside a closed-loop property-controlled flow forming process. To achieve
this, optimization by means of a non-linear regression of experimental data was
carried out. To collect the experimental data, specimens were produced by flow
forming seamless tubes at room temperature. Using a combination of production
parameters (like the infeed depth and feed rate), specimens with different α’-martensite
contents and wall-thickness reductions were produced. An equation to compute α’-martensite
from both specific production-process parameters and micromagnetic Barkhausen
noise (MBN) measurements was obtained using numerical methods. In this process,
the behavior of the quantity of interest (namely, the α’-martensite content) was
mathematically evaluated with respect to non-destructive MBN data and the feed
rate that was used to produce the components. A combination of exponential and
potential functions was defined as the ansatz functions of the model. The obtained
model was validated online and offline during the real flow forming of workpieces,
obtaining average deviations of up to 7% α’-martensite with respect to the model.
The implementation of the soft sensor model for property-controlled production
represents an important milestone for producing high-added-value components on
the basis of a well-understood process-microstructure-property relationship.
author:
- first_name: 'Julian '
full_name: 'Rozo Vasquez, Julian '
last_name: Rozo Vasquez
- first_name: Lukas
full_name: Kersting, Lukas
last_name: Kersting
- first_name: Bahman
full_name: Arian, Bahman
id: '36287'
last_name: Arian
- first_name: Werner
full_name: Homberg, Werner
id: '233'
last_name: Homberg
- first_name: Ansgar
full_name: Trächtler, Ansgar
id: '552'
last_name: Trächtler
- first_name: Frank
full_name: Walther, Frank
last_name: Walther
citation:
ama: 'Rozo Vasquez J, Kersting L, Arian B, Homberg W, Trächtler A, Walther F. Soft
Sensor Model of Phase Transformation During Flow Forming of Metastable Austenitic
Steel AISI 304L. In: Lecture Notes in Mechanical Engineering. Springer
International Publishing; 2024. doi:10.1007/978-3-031-58006-2_10'
apa: Rozo Vasquez, J., Kersting, L., Arian, B., Homberg, W., Trächtler, A., &
Walther, F. (2024). Soft Sensor Model of Phase Transformation During Flow Forming
of Metastable Austenitic Steel AISI 304L. In Lecture Notes in Mechanical Engineering.
Springer International Publishing. https://doi.org/10.1007/978-3-031-58006-2_10
bibtex: '@inbook{Rozo Vasquez_Kersting_Arian_Homberg_Trächtler_Walther_2024, place={Cham},
title={Soft Sensor Model of Phase Transformation During Flow Forming of Metastable
Austenitic Steel AISI 304L}, DOI={10.1007/978-3-031-58006-2_10},
booktitle={Lecture Notes in Mechanical Engineering}, publisher={Springer International
Publishing}, author={Rozo Vasquez, Julian and Kersting, Lukas and Arian, Bahman
and Homberg, Werner and Trächtler, Ansgar and Walther, Frank}, year={2024} }'
chicago: 'Rozo Vasquez, Julian , Lukas Kersting, Bahman Arian, Werner Homberg, Ansgar
Trächtler, and Frank Walther. “Soft Sensor Model of Phase Transformation During
Flow Forming of Metastable Austenitic Steel AISI 304L.” In Lecture Notes in
Mechanical Engineering. Cham: Springer International Publishing, 2024. https://doi.org/10.1007/978-3-031-58006-2_10.'
ieee: 'J. Rozo Vasquez, L. Kersting, B. Arian, W. Homberg, A. Trächtler, and F.
Walther, “Soft Sensor Model of Phase Transformation During Flow Forming of Metastable
Austenitic Steel AISI 304L,” in Lecture Notes in Mechanical Engineering,
Cham: Springer International Publishing, 2024.'
mla: Rozo Vasquez, Julian, et al. “Soft Sensor Model of Phase Transformation During
Flow Forming of Metastable Austenitic Steel AISI 304L.” Lecture Notes in Mechanical
Engineering, Springer International Publishing, 2024, doi:10.1007/978-3-031-58006-2_10.
short: 'J. Rozo Vasquez, L. Kersting, B. Arian, W. Homberg, A. Trächtler, F. Walther,
in: Lecture Notes in Mechanical Engineering, Springer International Publishing,
Cham, 2024.'
date_created: 2024-11-18T10:24:06Z
date_updated: 2024-11-18T10:39:03Z
department:
- _id: '153'
- _id: '241'
- _id: '156'
doi: 10.1007/978-3-031-58006-2_10
language:
- iso: eng
place: Cham
publication: Lecture Notes in Mechanical Engineering
publication_identifier:
isbn:
- '9783031580055'
- '9783031580062'
issn:
- 2195-4356
- 2195-4364
publication_status: published
publisher: Springer International Publishing
quality_controlled: '1'
status: public
title: Soft Sensor Model of Phase Transformation During Flow Forming of Metastable
Austenitic Steel AISI 304L
type: book_chapter
user_id: '41470'
year: '2024'
...
---
_id: '57189'
abstract:
- lang: eng
text: "This paper deals with micromagnetic measurements for online detection of\r\nstrain-induced
α’-martensite during plastic deformation of metastable\r\naustenitic steel AISI
304L. The operating principles of the sensors are\r\nBarkhausen noise (MBN) and
eddy currents (EC), which are suitable for\r\ndetection of microstructure evolution
due to formation of ferromagnetic\r\nphases. Nevertheless, the description of
the calibration and\r\ntransformation models of the micromagnetic measurements
into\r\nquantitative α’-martensite fractions is beyond the scope of this paper.\r\nThe
focus will be put on the qualification of different micromagnetic\r\nmethods as
well as of different measurement systems under conditions\r\nsimilar to the real
ones during production, which is crucial for\r\nimplementation of a property-controlled
flow forming process. The\r\ninvestigation was carried out on tubular specimens
produced by flow\r\nforming, which have different content of α’-martensite. To
characterize\r\nthe sensitivity of the sensors, different contact conditions between\r\nsensors
and workpieces were reproduced. MBN sensors are suitable for\r\ndetecting amount
of α’-martensite, but the measurements are affected by\r\nthe surface roughness.
This entails that the calibration models for MBN\r\nsensors must take account
of these effects. EC sensors show a closer\r\nmatch with the amount of α’-martensite
without having major affectation\r\nby other effects."
author:
- first_name: 'Julian '
full_name: 'Rozo Vasquez, Julian '
last_name: Rozo Vasquez
- first_name: Hanigah
full_name: Kanagarajah, Hanigah
last_name: Kanagarajah
- first_name: Bahman
full_name: Arian, Bahman
id: '36287'
last_name: Arian
- first_name: Lukas
full_name: Kersting, Lukas
last_name: Kersting
- first_name: Werner
full_name: Homberg, Werner
id: '233'
last_name: Homberg
- first_name: Ansgar
full_name: Trächtler, Ansgar
id: '552'
last_name: Trächtler
- first_name: Frank
full_name: Walther, Frank
last_name: Walther
citation:
ama: 'Rozo Vasquez J, Kanagarajah H, Arian B, et al. Barkhausen noise- and eddy
current-based measurements for online detection of deformation-induced martensite
during flow forming of metastable austenitic steel AISI 304L. In: Authorea, Inc.;
2024.'
apa: Rozo Vasquez, J., Kanagarajah, H., Arian, B., Kersting, L., Homberg, W., Trächtler,
A., & Walther, F. (2024). Barkhausen noise- and eddy current-based measurements
for online detection of deformation-induced martensite during flow forming of
metastable austenitic steel AISI 304L.
bibtex: '@inproceedings{Rozo Vasquez_Kanagarajah_Arian_Kersting_Homberg_Trächtler_Walther_2024,
title={Barkhausen noise- and eddy current-based measurements for online detection
of deformation-induced martensite during flow forming of metastable austenitic
steel AISI 304L}, publisher={Authorea, Inc.}, author={Rozo Vasquez, Julian and
Kanagarajah, Hanigah and Arian, Bahman and Kersting, Lukas and Homberg, Werner
and Trächtler, Ansgar and Walther, Frank}, year={2024} }'
chicago: Rozo Vasquez, Julian , Hanigah Kanagarajah, Bahman Arian, Lukas Kersting,
Werner Homberg, Ansgar Trächtler, and Frank Walther. “Barkhausen Noise- and Eddy
Current-Based Measurements for Online Detection of Deformation-Induced Martensite
during Flow Forming of Metastable Austenitic Steel AISI 304L.” Authorea, Inc.,
2024.
ieee: J. Rozo Vasquez et al., “Barkhausen noise- and eddy current-based measurements
for online detection of deformation-induced martensite during flow forming of
metastable austenitic steel AISI 304L,” 2024.
mla: Rozo Vasquez, Julian, et al. Barkhausen Noise- and Eddy Current-Based Measurements
for Online Detection of Deformation-Induced Martensite during Flow Forming of
Metastable Austenitic Steel AISI 304L. Authorea, Inc., 2024.
short: 'J. Rozo Vasquez, H. Kanagarajah, B. Arian, L. Kersting, W. Homberg, A. Trächtler,
F. Walther, in: Authorea, Inc., 2024.'
date_created: 2024-11-18T10:22:34Z
date_updated: 2024-11-18T10:39:19Z
department:
- _id: '153'
- _id: '241'
- _id: '156'
language:
- iso: eng
publication_status: published
publisher: Authorea, Inc.
quality_controlled: '1'
status: public
title: Barkhausen noise- and eddy current-based measurements for online detection
of deformation-induced martensite during flow forming of metastable austenitic steel
AISI 304L
type: conference
user_id: '41470'
year: '2024'
...
---
_id: '57173'
abstract:
- lang: eng
text: Manufacturing processes benefit from property control enabling reproducibility,
application oriented outcomes, and efficient part production. In reverse flow
forming, state of the art practices focus primarily on geometry control, neglecting
property control. Given the intricacies of the process involving the interaction
of tool and machine behavior, process parameters, properties of semi finished
products and temperatures, incorporating process control becomes an imperative
for producing components with predefined properties. The property controlled within
this reverse flow forming process is the local α’ martensite content. Therefore,
process strategies to actively influence the α’ martensite content must be implemented.
In this study seamless AISI 304L steel tubes are used, where α’ martensite formation
is strain and/or temperature induced through phase transformation within the
process. This paper presents innovative process strategies, methods, and specially
developed mechanical and thermal actuator systems to locally increase or suppress
the α’ martensite content. The use and implementation of these approaches and
tools allows the creation of unique optically invisible microstructure profiles
containing 3D gradings, implying a radial grading of α’ martensite. The locally
implemented α’ martensite, forming these 3D gradings, offers potential applications
for functional or sensory purposes. This paper extends beyond theoretical concepts,
providing tangible component outcomes.
author:
- first_name: Bahman
full_name: Arian, Bahman
id: '36287'
last_name: Arian
- first_name: Werner
full_name: Homberg, Werner
id: '233'
last_name: Homberg
- first_name: Lukas
full_name: Kersting, Lukas
last_name: Kersting
- first_name: Ansgar
full_name: Trächtler, Ansgar
id: '552'
last_name: Trächtler
- first_name: Julian
full_name: Rozo Vasquez, Julian
last_name: Rozo Vasquez
- first_name: Frank
full_name: Walther, Frank
last_name: Walther
citation:
ama: 'Arian B, Homberg W, Kersting L, Trächtler A, Rozo Vasquez J, Walther F. α’-martensite
grading techniques in reverse flow forming of AISI 304L. In: Materials Research
Proceedings. Vol 44. Materials Research Forum LLC; 2024. doi:10.21741/9781644903254-76'
apa: Arian, B., Homberg, W., Kersting, L., Trächtler, A., Rozo Vasquez, J., &
Walther, F. (2024). α’-martensite grading techniques in reverse flow forming of
AISI 304L. Materials Research Proceedings, 44. https://doi.org/10.21741/9781644903254-76
bibtex: '@inproceedings{Arian_Homberg_Kersting_Trächtler_Rozo Vasquez_Walther_2024,
title={α’-martensite grading techniques in reverse flow forming of AISI 304L},
volume={44}, DOI={10.21741/9781644903254-76},
booktitle={Materials Research Proceedings}, publisher={Materials Research Forum
LLC}, author={Arian, Bahman and Homberg, Werner and Kersting, Lukas and Trächtler,
Ansgar and Rozo Vasquez, Julian and Walther, Frank}, year={2024} }'
chicago: Arian, Bahman, Werner Homberg, Lukas Kersting, Ansgar Trächtler, Julian
Rozo Vasquez, and Frank Walther. “α’-Martensite Grading Techniques in Reverse
Flow Forming of AISI 304L.” In Materials Research Proceedings, Vol. 44.
Materials Research Forum LLC, 2024. https://doi.org/10.21741/9781644903254-76.
ieee: 'B. Arian, W. Homberg, L. Kersting, A. Trächtler, J. Rozo Vasquez, and F.
Walther, “α’-martensite grading techniques in reverse flow forming of AISI 304L,”
in Materials Research Proceedings, 2024, vol. 44, doi: 10.21741/9781644903254-76.'
mla: Arian, Bahman, et al. “α’-Martensite Grading Techniques in Reverse Flow Forming
of AISI 304L.” Materials Research Proceedings, vol. 44, Materials Research
Forum LLC, 2024, doi:10.21741/9781644903254-76.
short: 'B. Arian, W. Homberg, L. Kersting, A. Trächtler, J. Rozo Vasquez, F. Walther,
in: Materials Research Proceedings, Materials Research Forum LLC, 2024.'
date_created: 2024-11-18T10:06:17Z
date_updated: 2024-11-18T10:42:55Z
department:
- _id: '241'
- _id: '153'
- _id: '156'
doi: 10.21741/9781644903254-76
intvolume: ' 44'
language:
- iso: eng
publication: Materials Research Proceedings
publication_identifier:
issn:
- 2474-395X
publication_status: published
publisher: Materials Research Forum LLC
quality_controlled: '1'
status: public
title: α’-martensite grading techniques in reverse flow forming of AISI 304L
type: conference
user_id: '41470'
volume: 44
year: '2024'
...
---
_id: '57178'
abstract:
- lang: eng
text: The incremental flow forming process is currently enhanced in research context
by special closed-loop property control concepts to increase the productivity
and to control the product properties making invisible property structures like
a magnetic barcode possible. However, it is preferred to establish property control
concepts on single roller machines instead of conventional machines with three
roller actuation due to the better machine accessibility. For those single roller
machines, rather poor surface qualities of flow formed workpieces were observed
in the past especially for hydraulic actuators. Thus, a new actuator closed-loop
position control concept is developed in this paper using model-based control
design methods and taking the flow forming forces as a load into account. The
novel closed-loop control is validated during workpiece production at the actual
single roller flow forming machine. An analysis of the manufactured workpieces
show that the surface quality is significantly enhanced by the new control to
a roughness level almost similar to conventional three roller flow forming. Thus,
a sincere added value to the flow forming process is offered by the novel actuator
closed-loop position control.
author:
- first_name: Lukas
full_name: Kersting, Lukas
last_name: Kersting
- first_name: Sebastian
full_name: Sander, Sebastian
last_name: Sander
- first_name: Bahman
full_name: Arian, Bahman
id: '36287'
last_name: Arian
- first_name: Julian
full_name: Rozo Vasquez, Julian
last_name: Rozo Vasquez
- first_name: Ansgar
full_name: Trächtler, Ansgar
id: '552'
last_name: Trächtler
- first_name: Werner
full_name: Homberg, Werner
id: '233'
last_name: Homberg
- first_name: Frank
full_name: Walther, Frank
last_name: Walther
citation:
ama: 'Kersting L, Sander S, Arian B, et al. Improving the flow forming process by
a novel closed-loop control. In: Materials Research Proceedings. Vol 41.
Materials Research Forum LLC; 2024. doi:10.21741/9781644903131-158'
apa: Kersting, L., Sander, S., Arian, B., Rozo Vasquez, J., Trächtler, A., Homberg,
W., & Walther, F. (2024). Improving the flow forming process by a novel closed-loop
control. Materials Research Proceedings, 41. https://doi.org/10.21741/9781644903131-158
bibtex: '@inproceedings{Kersting_Sander_Arian_Rozo Vasquez_Trächtler_Homberg_Walther_2024,
title={Improving the flow forming process by a novel closed-loop control}, volume={41},
DOI={10.21741/9781644903131-158},
booktitle={Materials Research Proceedings}, publisher={Materials Research Forum
LLC}, author={Kersting, Lukas and Sander, Sebastian and Arian, Bahman and Rozo
Vasquez, Julian and Trächtler, Ansgar and Homberg, Werner and Walther, Frank},
year={2024} }'
chicago: Kersting, Lukas, Sebastian Sander, Bahman Arian, Julian Rozo Vasquez, Ansgar
Trächtler, Werner Homberg, and Frank Walther. “Improving the Flow Forming Process
by a Novel Closed-Loop Control.” In Materials Research Proceedings, Vol.
41. Materials Research Forum LLC, 2024. https://doi.org/10.21741/9781644903131-158.
ieee: 'L. Kersting et al., “Improving the flow forming process by a novel
closed-loop control,” in Materials Research Proceedings, 2024, vol. 41,
doi: 10.21741/9781644903131-158.'
mla: Kersting, Lukas, et al. “Improving the Flow Forming Process by a Novel Closed-Loop
Control.” Materials Research Proceedings, vol. 41, Materials Research Forum
LLC, 2024, doi:10.21741/9781644903131-158.
short: 'L. Kersting, S. Sander, B. Arian, J. Rozo Vasquez, A. Trächtler, W. Homberg,
F. Walther, in: Materials Research Proceedings, Materials Research Forum LLC,
2024.'
date_created: 2024-11-18T10:11:24Z
date_updated: 2024-11-18T10:41:46Z
department:
- _id: '153'
- _id: '241'
- _id: '156'
doi: 10.21741/9781644903131-158
intvolume: ' 41'
language:
- iso: eng
publication: Materials Research Proceedings
publication_identifier:
issn:
- 2474-395X
publication_status: published
publisher: Materials Research Forum LLC
quality_controlled: '1'
status: public
title: Improving the flow forming process by a novel closed-loop control
type: conference
user_id: '41470'
volume: 41
year: '2024'
...
---
_id: '57183'
abstract:
- lang: eng
text: In multi-stage bending and straightening operations cross-stage and quantity-dependent
effects crucially affect the quality of the end product. Using punch-bending units
in combination with a mechatronic straightening device can improve the accuracy
and repeatability of product features remarkably well. In this work a concept
for an innovative hybrid model of a roll straightener in a multi-stage straightening
and multi-stage bending process is proposed. This model combines data-driven elements
with expert knowledge and aims to minimise residual errors of the roll straightener
to reliably decrease the risk of disadvantageous cross-stage and quantity-dependent
effects on a subsequent punch-bending process.
author:
- first_name: Henning
full_name: Peters, Henning
last_name: Peters
- first_name: Eugen
full_name: Djakow, Eugen
id: '7904'
last_name: Djakow
- first_name: Tim
full_name: Rostek, Tim
id: '3469'
last_name: Rostek
- first_name: Andreas
full_name: Mazur, Andreas
last_name: Mazur
- first_name: Ansgar
full_name: Trächtler, Ansgar
id: '552'
last_name: Trächtler
- first_name: Werner
full_name: Homberg, Werner
id: '233'
last_name: Homberg
- first_name: Barbara
full_name: Hammer, Barbara
last_name: Hammer
citation:
ama: 'Peters H, Djakow E, Rostek T, et al. Novel approach for data-driven modelling
of multi-stage straightening and bending processes. In: Materials Research
Proceedings. Vol 41. Materials Research Forum LLC; 2024. doi:10.21741/9781644903131-252'
apa: Peters, H., Djakow, E., Rostek, T., Mazur, A., Trächtler, A., Homberg, W.,
& Hammer, B. (2024). Novel approach for data-driven modelling of multi-stage
straightening and bending processes. Materials Research Proceedings, 41.
https://doi.org/10.21741/9781644903131-252
bibtex: '@inproceedings{Peters_Djakow_Rostek_Mazur_Trächtler_Homberg_Hammer_2024,
title={Novel approach for data-driven modelling of multi-stage straightening and
bending processes}, volume={41}, DOI={10.21741/9781644903131-252},
booktitle={Materials Research Proceedings}, publisher={Materials Research Forum
LLC}, author={Peters, Henning and Djakow, Eugen and Rostek, Tim and Mazur, Andreas
and Trächtler, Ansgar and Homberg, Werner and Hammer, Barbara}, year={2024} }'
chicago: Peters, Henning, Eugen Djakow, Tim Rostek, Andreas Mazur, Ansgar Trächtler,
Werner Homberg, and Barbara Hammer. “Novel Approach for Data-Driven Modelling
of Multi-Stage Straightening and Bending Processes.” In Materials Research
Proceedings, Vol. 41. Materials Research Forum LLC, 2024. https://doi.org/10.21741/9781644903131-252.
ieee: 'H. Peters et al., “Novel approach for data-driven modelling of multi-stage
straightening and bending processes,” in Materials Research Proceedings,
2024, vol. 41, doi: 10.21741/9781644903131-252.'
mla: Peters, Henning, et al. “Novel Approach for Data-Driven Modelling of Multi-Stage
Straightening and Bending Processes.” Materials Research Proceedings, vol.
41, Materials Research Forum LLC, 2024, doi:10.21741/9781644903131-252.
short: 'H. Peters, E. Djakow, T. Rostek, A. Mazur, A. Trächtler, W. Homberg, B.
Hammer, in: Materials Research Proceedings, Materials Research Forum LLC, 2024.'
date_created: 2024-11-18T10:15:37Z
date_updated: 2024-11-18T10:40:50Z
department:
- _id: '153'
- _id: '241'
- _id: '156'
doi: 10.21741/9781644903131-252
intvolume: ' 41'
language:
- iso: eng
publication: Materials Research Proceedings
publication_identifier:
issn:
- 2474-395X
publication_status: published
publisher: Materials Research Forum LLC
quality_controlled: '1'
status: public
title: Novel approach for data-driven modelling of multi-stage straightening and bending
processes
type: conference
user_id: '41470'
volume: 41
year: '2024'
...
---
_id: '57171'
abstract:
- lang: eng
text: In manufacturing, property control ensures efficient part production. However,
in reverse flow forming, current practices focus on geometry control rather than
property control. To address the complexity of the process and tool machine interaction,
process control is crucial for defined component properties. This study focuses
on controlling local α’ martensite content in reverse flow forming of seamless
AISI 304L steel tubes. Strategies and systems are presented to influence α’ martensite
content, creating unique microstructure profiles for 1D and 2D Gradings, with
tangible component outcomes.
author:
- first_name: Bahman
full_name: Arian, Bahman
id: '36287'
last_name: Arian
- first_name: Werner
full_name: Homberg, Werner
id: '233'
last_name: Homberg
- first_name: Lukas
full_name: Kersting, Lukas
last_name: Kersting
- first_name: Ansgar
full_name: Trächtler, Ansgar
id: '552'
last_name: Trächtler
- first_name: Julian
full_name: Rozo Vasquez, Julian
last_name: Rozo Vasquez
- first_name: Frank
full_name: Walther, Frank
last_name: Walther
citation:
ama: 'Arian B, Homberg W, Kersting L, Trächtler A, Rozo Vasquez J, Walther F. Thermomechanical
reverse flow forming of AISI 304L. In: Materials Research Proceedings.
Vol 41. Materials Research Forum LLC; 2024. doi:10.21741/9781644903131-151'
apa: Arian, B., Homberg, W., Kersting, L., Trächtler, A., Rozo Vasquez, J., &
Walther, F. (2024). Thermomechanical reverse flow forming of AISI 304L. Materials
Research Proceedings, 41. https://doi.org/10.21741/9781644903131-151
bibtex: '@inproceedings{Arian_Homberg_Kersting_Trächtler_Rozo Vasquez_Walther_2024,
title={Thermomechanical reverse flow forming of AISI 304L}, volume={41}, DOI={10.21741/9781644903131-151},
booktitle={Materials Research Proceedings}, publisher={Materials Research Forum
LLC}, author={Arian, Bahman and Homberg, Werner and Kersting, Lukas and Trächtler,
Ansgar and Rozo Vasquez, Julian and Walther, Frank}, year={2024} }'
chicago: Arian, Bahman, Werner Homberg, Lukas Kersting, Ansgar Trächtler, Julian
Rozo Vasquez, and Frank Walther. “Thermomechanical Reverse Flow Forming of AISI
304L.” In Materials Research Proceedings, Vol. 41. Materials Research Forum
LLC, 2024. https://doi.org/10.21741/9781644903131-151.
ieee: 'B. Arian, W. Homberg, L. Kersting, A. Trächtler, J. Rozo Vasquez, and F.
Walther, “Thermomechanical reverse flow forming of AISI 304L,” in Materials
Research Proceedings, 2024, vol. 41, doi: 10.21741/9781644903131-151.'
mla: Arian, Bahman, et al. “Thermomechanical Reverse Flow Forming of AISI 304L.”
Materials Research Proceedings, vol. 41, Materials Research Forum LLC,
2024, doi:10.21741/9781644903131-151.
short: 'B. Arian, W. Homberg, L. Kersting, A. Trächtler, J. Rozo Vasquez, F. Walther,
in: Materials Research Proceedings, Materials Research Forum LLC, 2024.'
date_created: 2024-11-18T10:02:38Z
date_updated: 2024-11-18T10:42:49Z
department:
- _id: '241'
- _id: '153'
- _id: '156'
doi: 10.21741/9781644903131-151
intvolume: ' 41'
language:
- iso: eng
publication: Materials Research Proceedings
publication_identifier:
issn:
- 2474-395X
publication_status: published
publisher: Materials Research Forum LLC
quality_controlled: '1'
status: public
title: Thermomechanical reverse flow forming of AISI 304L
type: conference
user_id: '41470'
volume: 41
year: '2024'
...
---
_id: '54650'
abstract:
- lang: eng
text: Abstract. Reducing the weight of vehicles can significantly lower
the energy or fuel consumed and thus the emissions during operation. One possibility
to assess this is the use of a property adapted multi-material systems containing
high strength steel, light metals like aluminium or magnesium and fibre reinforced
plastics. While expanding the number of materials used new challenges arise for
the production and furthermore the joining technology to manufacture the vehicle
made of the multi-material systems. One approach to overcome these challenges
is to use innovative and adaptable joining techniques which allows the manufacturing
of joints of different material combinations. Extensive research activities on
the two stage thermo-mechanical joining process with adaptable joining elements
was able to demonstrate the great potentials in terms of joining dissimilar materials
with good strength. The previously kinematic and path-based fabrication of auxiliary
joining elements is modified in this publication to a form-based approach with
a perspective of establishing an efficient process chain using easily and cheaply
available rods. Based on the new approach to produce the auxiliary joining elements,
it can be demonstrated that a reproducible production of the geometry is possible
for the investigated steel as well as aluminium material.
author:
- first_name: Thomas
full_name: Borgert, Thomas
id: '83141'
last_name: Borgert
- first_name: Ansgar Bernhard
full_name: Nordieker, Ansgar Bernhard
id: '88725'
last_name: Nordieker
- first_name: Werner
full_name: Homberg, Werner
id: '233'
last_name: Homberg
citation:
ama: 'Borgert T, Nordieker AB, Homberg W. Form-based manufacturing of aluminium
and steel auxiliary joining elements as the basis for an efficient joining operation.
In: Materials Research Proceedings. Materials Research Forum LLC; 2024.
doi:10.21741/9781644903131-180'
apa: Borgert, T., Nordieker, A. B., & Homberg, W. (2024). Form-based manufacturing
of aluminium and steel auxiliary joining elements as the basis for an efficient
joining operation. Materials Research Proceedings. ESAFORM 2024, Toulouse.
https://doi.org/10.21741/9781644903131-180
bibtex: '@inproceedings{Borgert_Nordieker_Homberg_2024, title={Form-based manufacturing
of aluminium and steel auxiliary joining elements as the basis for an efficient
joining operation}, DOI={10.21741/9781644903131-180},
booktitle={Materials Research Proceedings}, publisher={Materials Research Forum
LLC}, author={Borgert, Thomas and Nordieker, Ansgar Bernhard and Homberg, Werner},
year={2024} }'
chicago: Borgert, Thomas, Ansgar Bernhard Nordieker, and Werner Homberg. “Form-Based
Manufacturing of Aluminium and Steel Auxiliary Joining Elements as the Basis for
an Efficient Joining Operation.” In Materials Research Proceedings. Materials
Research Forum LLC, 2024. https://doi.org/10.21741/9781644903131-180.
ieee: 'T. Borgert, A. B. Nordieker, and W. Homberg, “Form-based manufacturing of
aluminium and steel auxiliary joining elements as the basis for an efficient joining
operation,” presented at the ESAFORM 2024, Toulouse, 2024, doi: 10.21741/9781644903131-180.'
mla: Borgert, Thomas, et al. “Form-Based Manufacturing of Aluminium and Steel Auxiliary
Joining Elements as the Basis for an Efficient Joining Operation.” Materials
Research Proceedings, Materials Research Forum LLC, 2024, doi:10.21741/9781644903131-180.
short: 'T. Borgert, A.B. Nordieker, W. Homberg, in: Materials Research Proceedings,
Materials Research Forum LLC, 2024.'
conference:
location: Toulouse
name: ESAFORM 2024
date_created: 2024-06-07T09:38:45Z
date_updated: 2025-09-22T05:45:37Z
department:
- _id: '156'
doi: 10.21741/9781644903131-180
language:
- iso: eng
project:
- _id: '133'
name: TRR 285 - Project Area C
- _id: '147'
name: TRR 285 - Subproject C03
publication: Materials Research Proceedings
publication_identifier:
issn:
- 2474-395X
publication_status: published
publisher: Materials Research Forum LLC
status: public
title: Form-based manufacturing of aluminium and steel auxiliary joining elements
as the basis for an efficient joining operation
type: conference
user_id: '88725'
year: '2024'
...
---
_id: '54649'
article_number: '100185'
author:
- first_name: Thomas
full_name: Borgert, Thomas
id: '83141'
last_name: Borgert
- first_name: Ansgar Bernhard
full_name: Nordieker, Ansgar Bernhard
id: '88725'
last_name: Nordieker
- first_name: Eugen
full_name: Wiens, Eugen
id: '7888'
last_name: Wiens
- first_name: Werner
full_name: Homberg, Werner
id: '233'
last_name: Homberg
citation:
ama: Borgert T, Nordieker AB, Wiens E, Homberg W. Investigations to improve the
tool life during thermomechanical and incremental forming of steel auxiliary joining
elements. Journal of Advanced Joining Processes. 2024;9. doi:10.1016/j.jajp.2024.100185
apa: Borgert, T., Nordieker, A. B., Wiens, E., & Homberg, W. (2024). Investigations
to improve the tool life during thermomechanical and incremental forming of steel
auxiliary joining elements. Journal of Advanced Joining Processes, 9,
Article 100185. https://doi.org/10.1016/j.jajp.2024.100185
bibtex: '@article{Borgert_Nordieker_Wiens_Homberg_2024, title={Investigations to
improve the tool life during thermomechanical and incremental forming of steel
auxiliary joining elements}, volume={9}, DOI={10.1016/j.jajp.2024.100185},
number={100185}, journal={Journal of Advanced Joining Processes}, publisher={Elsevier
BV}, author={Borgert, Thomas and Nordieker, Ansgar Bernhard and Wiens, Eugen and
Homberg, Werner}, year={2024} }'
chicago: Borgert, Thomas, Ansgar Bernhard Nordieker, Eugen Wiens, and Werner Homberg.
“Investigations to Improve the Tool Life during Thermomechanical and Incremental
Forming of Steel Auxiliary Joining Elements.” Journal of Advanced Joining Processes
9 (2024). https://doi.org/10.1016/j.jajp.2024.100185.
ieee: 'T. Borgert, A. B. Nordieker, E. Wiens, and W. Homberg, “Investigations to
improve the tool life during thermomechanical and incremental forming of steel
auxiliary joining elements,” Journal of Advanced Joining Processes, vol.
9, Art. no. 100185, 2024, doi: 10.1016/j.jajp.2024.100185.'
mla: Borgert, Thomas, et al. “Investigations to Improve the Tool Life during Thermomechanical
and Incremental Forming of Steel Auxiliary Joining Elements.” Journal of Advanced
Joining Processes, vol. 9, 100185, Elsevier BV, 2024, doi:10.1016/j.jajp.2024.100185.
short: T. Borgert, A.B. Nordieker, E. Wiens, W. Homberg, Journal of Advanced Joining
Processes 9 (2024).
date_created: 2024-06-07T09:31:59Z
date_updated: 2025-09-22T05:44:28Z
department:
- _id: '156'
doi: 10.1016/j.jajp.2024.100185
intvolume: ' 9'
language:
- iso: eng
project:
- _id: '133'
name: TRR 285 - Project Area C
- _id: '147'
name: TRR 285 - Subproject C03
publication: Journal of Advanced Joining Processes
publication_identifier:
issn:
- 2666-3309
publication_status: published
publisher: Elsevier BV
status: public
title: Investigations to improve the tool life during thermomechanical and incremental
forming of steel auxiliary joining elements
type: journal_article
user_id: '88725'
volume: 9
year: '2024'
...
---
_id: '62025'
abstract:
- lang: eng
text: ABSTRACTThis paper deals with micromagnetic
measurements for online detection of strain‐induced α′‐martensite during plastic
deformation of metastable austenitic steel AISI 304L. The operating principles
of the sensors are magnetic Barkhausen noise (MBN) and eddy currents (EC), which
are suitable for detection of microstructure evolution due to formation of ferromagnetic
phases. The focus of this study was put on the qualification of different micromagnetic
techniques and different measurement systems under conditions similar to the real
ones during production, which is crucial for implementation of a property‐controlled
flow forming process. The investigation was carried out on tubular specimens produced
by flow forming, which have different content of α′‐martensite. To characterize
the sensitivity of the sensors, different contact conditions between sensors and
workpieces were reproduced. MBN sensors are suitable for detecting amount of α′‐martensite,
but the measurements are affected by the surface roughness. This entails that
the calibration models for MBN sensors must take account of these effects. EC
sensors show a closer match with the amount of α′‐martensite without having major
affectation by other effects.
article_number: e13070
author:
- first_name: Julian
full_name: Rozo Vasquez, Julian
last_name: Rozo Vasquez
- first_name: Hanigah
full_name: Kanagarajah, Hanigah
last_name: Kanagarajah
- first_name: Bahman
full_name: Arian, Bahman
id: '36287'
last_name: Arian
- first_name: Lukas
full_name: Kersting, Lukas
last_name: Kersting
- first_name: Werner
full_name: Homberg, Werner
id: '233'
last_name: Homberg
- first_name: Ansgar
full_name: Trächtler, Ansgar
id: '552'
last_name: Trächtler
- first_name: Frank
full_name: Walther, Frank
last_name: Walther
citation:
ama: Rozo Vasquez J, Kanagarajah H, Arian B, et al. Barkhausen Noise‐ and Eddy Current‐Based
Measurements for Online Detection of Deformation‐Induced Martensite During Flow
Forming of Metastable Austenitic Steel <scp>AISI 304L</scp>. Engineering
Reports. 2024;7(1). doi:10.1002/eng2.13070
apa: Rozo Vasquez, J., Kanagarajah, H., Arian, B., Kersting, L., Homberg, W., Trächtler,
A., & Walther, F. (2024). Barkhausen Noise‐ and Eddy Current‐Based Measurements
for Online Detection of Deformation‐Induced Martensite During Flow Forming of
Metastable Austenitic Steel <scp>AISI 304L</scp>. Engineering
Reports, 7(1), Article e13070. https://doi.org/10.1002/eng2.13070
bibtex: '@article{Rozo Vasquez_Kanagarajah_Arian_Kersting_Homberg_Trächtler_Walther_2024,
title={Barkhausen Noise‐ and Eddy Current‐Based Measurements for Online Detection
of Deformation‐Induced Martensite During Flow Forming of Metastable Austenitic
Steel <scp>AISI 304L</scp>}, volume={7}, DOI={10.1002/eng2.13070},
number={1e13070}, journal={Engineering Reports}, publisher={Wiley}, author={Rozo
Vasquez, Julian and Kanagarajah, Hanigah and Arian, Bahman and Kersting, Lukas
and Homberg, Werner and Trächtler, Ansgar and Walther, Frank}, year={2024} }'
chicago: Rozo Vasquez, Julian, Hanigah Kanagarajah, Bahman Arian, Lukas Kersting,
Werner Homberg, Ansgar Trächtler, and Frank Walther. “Barkhausen Noise‐ and Eddy
Current‐Based Measurements for Online Detection of Deformation‐Induced Martensite
During Flow Forming of Metastable Austenitic Steel <scp>AISI 304L</Scp>.”
Engineering Reports 7, no. 1 (2024). https://doi.org/10.1002/eng2.13070.
ieee: 'J. Rozo Vasquez et al., “Barkhausen Noise‐ and Eddy Current‐Based
Measurements for Online Detection of Deformation‐Induced Martensite During Flow
Forming of Metastable Austenitic Steel <scp>AISI 304L</scp>,”
Engineering Reports, vol. 7, no. 1, Art. no. e13070, 2024, doi: 10.1002/eng2.13070.'
mla: Rozo Vasquez, Julian, et al. “Barkhausen Noise‐ and Eddy Current‐Based Measurements
for Online Detection of Deformation‐Induced Martensite During Flow Forming of
Metastable Austenitic Steel <scp>AISI 304L</Scp>.” Engineering
Reports, vol. 7, no. 1, e13070, Wiley, 2024, doi:10.1002/eng2.13070.
short: J. Rozo Vasquez, H. Kanagarajah, B. Arian, L. Kersting, W. Homberg, A. Trächtler,
F. Walther, Engineering Reports 7 (2024).
date_created: 2025-10-30T12:25:57Z
date_updated: 2025-10-30T12:54:40Z
department:
- _id: '153'
- _id: '241'
- _id: '156'
doi: 10.1002/eng2.13070
intvolume: ' 7'
issue: '1'
language:
- iso: eng
main_file_link:
- open_access: '1'
url: https://doi.org/10.1002/eng2.13070
oa: '1'
publication: Engineering Reports
publication_identifier:
issn:
- 2577-8196
- 2577-8196
publication_status: published
publisher: Wiley
status: public
title: Barkhausen Noise‐ and Eddy Current‐Based Measurements for Online Detection
of Deformation‐Induced Martensite During Flow Forming of Metastable Austenitic Steel
AISI 304L
type: journal_article
user_id: '82875'
volume: 7
year: '2024'
...
---
_id: '62053'
abstract:
- lang: eng
text: ABSTRACTThis paper deals with micromagnetic
measurements for online detection of strain‐induced α′‐martensite during plastic
deformation of metastable austenitic steel AISI 304L. The operating principles
of the sensors are magnetic Barkhausen noise (MBN) and eddy currents (EC), which
are suitable for detection of microstructure evolution due to formation of ferromagnetic
phases. The focus of this study was put on the qualification of different micromagnetic
techniques and different measurement systems under conditions similar to the real
ones during production, which is crucial for implementation of a property‐controlled
flow forming process. The investigation was carried out on tubular specimens produced
by flow forming, which have different content of α′‐martensite. To characterize
the sensitivity of the sensors, different contact conditions between sensors and
workpieces were reproduced. MBN sensors are suitable for detecting amount of α′‐martensite,
but the measurements are affected by the surface roughness. This entails that
the calibration models for MBN sensors must take account of these effects. EC
sensors show a closer match with the amount of α′‐martensite without having major
affectation by other effects.
article_number: e13070
author:
- first_name: Julian
full_name: Rozo Vasquez, Julian
last_name: Rozo Vasquez
- first_name: Hanigah
full_name: Kanagarajah, Hanigah
last_name: Kanagarajah
- first_name: Bahman
full_name: Arian, Bahman
id: '36287'
last_name: Arian
- first_name: Lukas
full_name: Kersting, Lukas
last_name: Kersting
- first_name: Werner
full_name: Homberg, Werner
id: '233'
last_name: Homberg
- first_name: Ansgar
full_name: Trächtler, Ansgar
id: '552'
last_name: Trächtler
- first_name: Frank
full_name: Walther, Frank
last_name: Walther
citation:
ama: Rozo Vasquez J, Kanagarajah H, Arian B, et al. Barkhausen Noise‐ and Eddy Current‐Based
Measurements for Online Detection of Deformation‐Induced Martensite During Flow
Forming of Metastable Austenitic Steel <scp>AISI 304L</scp>. Engineering
Reports. 2024;7(1). doi:10.1002/eng2.13070
apa: Rozo Vasquez, J., Kanagarajah, H., Arian, B., Kersting, L., Homberg, W., Trächtler,
A., & Walther, F. (2024). Barkhausen Noise‐ and Eddy Current‐Based Measurements
for Online Detection of Deformation‐Induced Martensite During Flow Forming of
Metastable Austenitic Steel <scp>AISI 304L</scp>. Engineering
Reports, 7(1), Article e13070. https://doi.org/10.1002/eng2.13070
bibtex: '@article{Rozo Vasquez_Kanagarajah_Arian_Kersting_Homberg_Trächtler_Walther_2024,
title={Barkhausen Noise‐ and Eddy Current‐Based Measurements for Online Detection
of Deformation‐Induced Martensite During Flow Forming of Metastable Austenitic
Steel <scp>AISI 304L</scp>}, volume={7}, DOI={10.1002/eng2.13070},
number={1e13070}, journal={Engineering Reports}, publisher={Wiley}, author={Rozo
Vasquez, Julian and Kanagarajah, Hanigah and Arian, Bahman and Kersting, Lukas
and Homberg, Werner and Trächtler, Ansgar and Walther, Frank}, year={2024} }'
chicago: Rozo Vasquez, Julian, Hanigah Kanagarajah, Bahman Arian, Lukas Kersting,
Werner Homberg, Ansgar Trächtler, and Frank Walther. “Barkhausen Noise‐ and Eddy
Current‐Based Measurements for Online Detection of Deformation‐Induced Martensite
During Flow Forming of Metastable Austenitic Steel <scp>AISI 304L</Scp>.”
Engineering Reports 7, no. 1 (2024). https://doi.org/10.1002/eng2.13070.
ieee: 'J. Rozo Vasquez et al., “Barkhausen Noise‐ and Eddy Current‐Based
Measurements for Online Detection of Deformation‐Induced Martensite During Flow
Forming of Metastable Austenitic Steel <scp>AISI 304L</scp>,”
Engineering Reports, vol. 7, no. 1, Art. no. e13070, 2024, doi: 10.1002/eng2.13070.'
mla: Rozo Vasquez, Julian, et al. “Barkhausen Noise‐ and Eddy Current‐Based Measurements
for Online Detection of Deformation‐Induced Martensite During Flow Forming of
Metastable Austenitic Steel <scp>AISI 304L</Scp>.” Engineering
Reports, vol. 7, no. 1, e13070, Wiley, 2024, doi:10.1002/eng2.13070.
short: J. Rozo Vasquez, H. Kanagarajah, B. Arian, L. Kersting, W. Homberg, A. Trächtler,
F. Walther, Engineering Reports 7 (2024).
date_created: 2025-11-03T10:28:12Z
date_updated: 2025-11-03T10:29:18Z
department:
- _id: '153'
- _id: '241'
- _id: '156'
doi: 10.1002/eng2.13070
intvolume: ' 7'
issue: '1'
language:
- iso: eng
main_file_link:
- open_access: '1'
url: https://doi.org/10.1002/eng2.13070
oa: '1'
publication: Engineering Reports
publication_identifier:
issn:
- 2577-8196
- 2577-8196
publication_status: published
publisher: Wiley
status: public
title: Barkhausen Noise‐ and Eddy Current‐Based Measurements for Online Detection
of Deformation‐Induced Martensite During Flow Forming of Metastable Austenitic Steel
AISI 304L
type: journal_article
user_id: '82875'
volume: 7
year: '2024'
...
---
_id: '63346'
abstract:
- lang: eng
text: Lightweight design by using low-density and load-adapted materials
can reduce the weight of vehicles and the emissions generated during operation.
However, the usage of different materials requires innovative joining technologies
with increased versatility. In this investigation, the focus is on describing
and characterising the failure behaviour of connections manufactured by an innovative
thermomechanical joining process with adaptable auxiliary joining elements in
single-lap tensile-shear tests. In order to analyse the failure development in
detail, the specimens are investigated using in-situ computed tomography (in-situ
CT). Here, the tensile-shear test is interrupted at points of interest and CT
scans are conducted under load. In addition, the interrupted in-situ testing procedure
is validated by comparing the loading behaviour with conventional continuous tensile-shear
tests. The results of the in-situ investigations of joints with varying material
combinations clearly describe the cause of failure, allowing conclusions towards
an improved joint design.
author:
- first_name: Thomas
full_name: Borgert, Thomas
id: '83141'
last_name: Borgert
- first_name: D
full_name: Köhler, D
last_name: Köhler
- first_name: Eugen
full_name: Wiens, Eugen
id: '7888'
last_name: Wiens
- first_name: R
full_name: Kupfer, R
last_name: Kupfer
- first_name: J
full_name: Troschitz, J
last_name: Troschitz
- first_name: Werner
full_name: Homberg, Werner
id: '233'
last_name: Homberg
- first_name: M
full_name: Gude, M
last_name: Gude
citation:
ama: 'Borgert T, Köhler D, Wiens E, et al. In-situ computed tomography analysis
of the failure mechanisms of thermomechanically manufactured joints with auxiliary
joining element. Proceedings of the Institution of Mechanical Engineers, Part
L: Journal of Materials: Design and Applications. 2024;238(12):2299-2306.
doi:10.1177/14644207241232233'
apa: 'Borgert, T., Köhler, D., Wiens, E., Kupfer, R., Troschitz, J., Homberg, W.,
& Gude, M. (2024). In-situ computed tomography analysis of the failure mechanisms
of thermomechanically manufactured joints with auxiliary joining element. Proceedings
of the Institution of Mechanical Engineers, Part L: Journal of Materials: Design
and Applications, 238(12), 2299–2306. https://doi.org/10.1177/14644207241232233'
bibtex: '@article{Borgert_Köhler_Wiens_Kupfer_Troschitz_Homberg_Gude_2024, title={In-situ
computed tomography analysis of the failure mechanisms of thermomechanically manufactured
joints with auxiliary joining element}, volume={238}, DOI={10.1177/14644207241232233},
number={12}, journal={Proceedings of the Institution of Mechanical Engineers,
Part L: Journal of Materials: Design and Applications}, publisher={SAGE Publications},
author={Borgert, Thomas and Köhler, D and Wiens, Eugen and Kupfer, R and Troschitz,
J and Homberg, Werner and Gude, M}, year={2024}, pages={2299–2306} }'
chicago: 'Borgert, Thomas, D Köhler, Eugen Wiens, R Kupfer, J Troschitz, Werner
Homberg, and M Gude. “In-Situ Computed Tomography Analysis of the Failure Mechanisms
of Thermomechanically Manufactured Joints with Auxiliary Joining Element.” Proceedings
of the Institution of Mechanical Engineers, Part L: Journal of Materials: Design
and Applications 238, no. 12 (2024): 2299–2306. https://doi.org/10.1177/14644207241232233.'
ieee: 'T. Borgert et al., “In-situ computed tomography analysis of the failure
mechanisms of thermomechanically manufactured joints with auxiliary joining element,”
Proceedings of the Institution of Mechanical Engineers, Part L: Journal of
Materials: Design and Applications, vol. 238, no. 12, pp. 2299–2306, 2024,
doi: 10.1177/14644207241232233.'
mla: 'Borgert, Thomas, et al. “In-Situ Computed Tomography Analysis of the Failure
Mechanisms of Thermomechanically Manufactured Joints with Auxiliary Joining Element.”
Proceedings of the Institution of Mechanical Engineers, Part L: Journal of
Materials: Design and Applications, vol. 238, no. 12, SAGE Publications, 2024,
pp. 2299–306, doi:10.1177/14644207241232233.'
short: 'T. Borgert, D. Köhler, E. Wiens, R. Kupfer, J. Troschitz, W. Homberg, M.
Gude, Proceedings of the Institution of Mechanical Engineers, Part L: Journal
of Materials: Design and Applications 238 (2024) 2299–2306.'
date_created: 2025-12-19T09:13:30Z
date_updated: 2025-12-22T10:40:28Z
department:
- _id: '156'
doi: 10.1177/14644207241232233
intvolume: ' 238'
issue: '12'
language:
- iso: eng
page: 2299-2306
publication: 'Proceedings of the Institution of Mechanical Engineers, Part L: Journal
of Materials: Design and Applications'
publication_identifier:
issn:
- 1464-4207
- 2041-3076
publication_status: published
publisher: SAGE Publications
quality_controlled: '1'
status: public
title: In-situ computed tomography analysis of the failure mechanisms of thermomechanically
manufactured joints with auxiliary joining element
type: journal_article
user_id: '7888'
volume: 238
year: '2024'
...
---
_id: '44316'
author:
- first_name: Julian
full_name: Rozo Vasquez, Julian
last_name: Rozo Vasquez
- first_name: Bahman
full_name: Arian, Bahman
id: '36287'
last_name: Arian
- first_name: Lukas
full_name: Kersting, Lukas
last_name: Kersting
- first_name: Frank
full_name: Walther, Frank
last_name: Walther
- first_name: Werner
full_name: Homberg, Werner
id: '233'
last_name: Homberg
- first_name: Ansgar
full_name: Trächtler, Ansgar
id: '552'
last_name: Trächtler
citation:
ama: 'Rozo Vasquez J, Arian B, Kersting L, Walther F, Homberg W, Trächtler A. Softsensor
model of phase transformation during flow forming of metastable austenitic steel
AISI 304L. In: ; 2023.'
apa: Rozo Vasquez, J., Arian, B., Kersting, L., Walther, F., Homberg, W., &
Trächtler, A. (2023). Softsensor model of phase transformation during flow
forming of metastable austenitic steel AISI 304L. The 14th International Conference
on Numerical Methods in Industrial Forming Processes (Numiform 2023), Krakau.
bibtex: '@inproceedings{Rozo Vasquez_Arian_Kersting_Walther_Homberg_Trächtler_2023,
title={Softsensor model of phase transformation during flow forming of metastable
austenitic steel AISI 304L}, author={Rozo Vasquez, Julian and Arian, Bahman and
Kersting, Lukas and Walther, Frank and Homberg, Werner and Trächtler, Ansgar},
year={2023} }'
chicago: Rozo Vasquez, Julian, Bahman Arian, Lukas Kersting, Frank Walther, Werner
Homberg, and Ansgar Trächtler. “Softsensor Model of Phase Transformation during
Flow Forming of Metastable Austenitic Steel AISI 304L,” 2023.
ieee: J. Rozo Vasquez, B. Arian, L. Kersting, F. Walther, W. Homberg, and A. Trächtler,
“Softsensor model of phase transformation during flow forming of metastable austenitic
steel AISI 304L,” presented at the The 14th International Conference on Numerical
Methods in Industrial Forming Processes (Numiform 2023), Krakau, 2023.
mla: Rozo Vasquez, Julian, et al. Softsensor Model of Phase Transformation during
Flow Forming of Metastable Austenitic Steel AISI 304L. 2023.
short: 'J. Rozo Vasquez, B. Arian, L. Kersting, F. Walther, W. Homberg, A. Trächtler,
in: 2023.'
conference:
end_date: 2023-06-29
location: Krakau
name: The 14th International Conference on Numerical Methods in Industrial Forming
Processes (Numiform 2023)
start_date: 2023-06-25
date_created: 2023-05-02T09:56:46Z
date_updated: 2023-11-07T00:01:46Z
department:
- _id: '156'
- _id: '241'
- _id: '153'
language:
- iso: eng
quality_controlled: '1'
status: public
title: Softsensor model of phase transformation during flow forming of metastable
austenitic steel AISI 304L
type: conference
user_id: '14931'
year: '2023'
...
---
_id: '48001'
author:
- first_name: Lukas
full_name: Bathelt, Lukas
last_name: Bathelt
- first_name: Eugen
full_name: Djakow, Eugen
id: '7904'
last_name: Djakow
- first_name: Frederik
full_name: Dahms, Frederik
id: '64977'
last_name: Dahms
- first_name: Christian
full_name: Henke, Christian
last_name: Henke
- first_name: Ansgar
full_name: Trächtler, Ansgar
id: '552'
last_name: Trächtler
- first_name: Werner
full_name: Homberg, Werner
id: '233'
last_name: Homberg
citation:
ama: 'Bathelt L, Djakow E, Dahms F, Henke C, Trächtler A, Homberg W. Neuartiger
Ansatz zum Richten von zwei- und dreidimensionalen Fehlern an einem Federdraht.
In: Ilmenauer Federntag 2023: Neueste Erkenntnisse Zu Funktion, Berechnung,
Prüfung Und Gestaltung von Federn Und Werkstoffen. ISLE Steuerungstechnik
und Leistungselektronik; 2023.'
apa: 'Bathelt, L., Djakow, E., Dahms, F., Henke, C., Trächtler, A., & Homberg,
W. (2023). Neuartiger Ansatz zum Richten von zwei- und dreidimensionalen Fehlern
an einem Federdraht. Ilmenauer Federntag 2023: Neueste Erkenntnisse Zu Funktion,
Berechnung, Prüfung Und Gestaltung von Federn Und Werkstoffen. Ilmenauer Federntag
2023, Ilmenau.'
bibtex: '@inproceedings{Bathelt_Djakow_Dahms_Henke_Trächtler_Homberg_2023, place={Ilmenau,
Germany}, title={Neuartiger Ansatz zum Richten von zwei- und dreidimensionalen
Fehlern an einem Federdraht}, booktitle={Ilmenauer Federntag 2023: Neueste Erkenntnisse
zu Funktion, Berechnung, Prüfung und Gestaltung von Federn und Werkstoffen}, publisher={ISLE
Steuerungstechnik und Leistungselektronik}, author={Bathelt, Lukas and Djakow,
Eugen and Dahms, Frederik and Henke, Christian and Trächtler, Ansgar and Homberg,
Werner}, year={2023} }'
chicago: 'Bathelt, Lukas, Eugen Djakow, Frederik Dahms, Christian Henke, Ansgar
Trächtler, and Werner Homberg. “Neuartiger Ansatz Zum Richten von Zwei- Und Dreidimensionalen
Fehlern an Einem Federdraht.” In Ilmenauer Federntag 2023: Neueste Erkenntnisse
Zu Funktion, Berechnung, Prüfung Und Gestaltung von Federn Und Werkstoffen.
Ilmenau, Germany: ISLE Steuerungstechnik und Leistungselektronik, 2023.'
ieee: L. Bathelt, E. Djakow, F. Dahms, C. Henke, A. Trächtler, and W. Homberg, “Neuartiger
Ansatz zum Richten von zwei- und dreidimensionalen Fehlern an einem Federdraht,”
presented at the Ilmenauer Federntag 2023, Ilmenau, 2023.
mla: 'Bathelt, Lukas, et al. “Neuartiger Ansatz Zum Richten von Zwei- Und Dreidimensionalen
Fehlern an Einem Federdraht.” Ilmenauer Federntag 2023: Neueste Erkenntnisse
Zu Funktion, Berechnung, Prüfung Und Gestaltung von Federn Und Werkstoffen,
ISLE Steuerungstechnik und Leistungselektronik, 2023.'
short: 'L. Bathelt, E. Djakow, F. Dahms, C. Henke, A. Trächtler, W. Homberg, in:
Ilmenauer Federntag 2023: Neueste Erkenntnisse Zu Funktion, Berechnung, Prüfung
Und Gestaltung von Federn Und Werkstoffen, ISLE Steuerungstechnik und Leistungselektronik,
Ilmenau, Germany, 2023.'
conference:
end_date: 2023-09-19
location: Ilmenau
name: Ilmenauer Federntag 2023
start_date: 2023-09-18
date_created: 2023-10-11T11:45:56Z
date_updated: 2023-10-31T14:56:44Z
department:
- _id: '156'
- _id: '153'
- _id: '241'
language:
- iso: eng
place: Ilmenau, Germany
publication: 'Ilmenauer Federntag 2023: Neueste Erkenntnisse zu Funktion, Berechnung,
Prüfung und Gestaltung von Federn und Werkstoffen'
publication_identifier:
isbn:
- 978-3-948595-09-8
publisher: ISLE Steuerungstechnik und Leistungselektronik
quality_controlled: '1'
status: public
title: Neuartiger Ansatz zum Richten von zwei- und dreidimensionalen Fehlern an einem
Federdraht
type: conference
user_id: '14931'
year: '2023'
...
---
_id: '44314'
abstract:
- lang: eng
text: Abstract. Workpiece property-control permits the application-oriented
and time-efficient production of components. In reverse flow forming, for example,
a control of the microstructure profile is not yet part of the state of the art,
in contrast to the geometry control. This is, due to several reasons, particularly
challenging when forming seamless tubes made of metastable austenitic stainless
AISI 304L steel. Inducing mechanical and/or thermal energy can cause a phase transformation
from austenite to martensite within this steel. The resulting α’-martensite has
different mechanical and micromagnetic properties, which can be advantageous depending
on the application. For purposes of local property control, the resulting α’-martensite
content should be measured and controlled online during the forming process. This
paper presents results from the usage of a custom developed cryo-system and different
application strategies to use liquid nitrogen as a coolant for local enhancement
of the forming-temperature depending α’-martensite content.
author:
- first_name: Bahman
full_name: Arian, Bahman
id: '36287'
last_name: Arian
- first_name: Werner
full_name: Homberg, Werner
id: '233'
last_name: Homberg
- first_name: Lukas
full_name: Kersting, Lukas
last_name: Kersting
- first_name: Ansgar
full_name: Trächtler, Ansgar
id: '552'
last_name: Trächtler
- first_name: Julian
full_name: Rozo Vasquez, Julian
last_name: Rozo Vasquez
- first_name: Frank
full_name: Walther, Frank
last_name: Walther
citation:
ama: 'Arian B, Homberg W, Kersting L, Trächtler A, Rozo Vasquez J, Walther F. Cryogenic
reverse flow forming of AISI 304L. In: Materials Research Proceedings.
Materials Research Forum LLC; 2023. doi:10.21741/9781644902479-219'
apa: Arian, B., Homberg, W., Kersting, L., Trächtler, A., Rozo Vasquez, J., &
Walther, F. (2023). Cryogenic reverse flow forming of AISI 304L. Materials
Research Proceedings. https://doi.org/10.21741/9781644902479-219
bibtex: '@inproceedings{Arian_Homberg_Kersting_Trächtler_Rozo Vasquez_Walther_2023,
title={Cryogenic reverse flow forming of AISI 304L}, DOI={10.21741/9781644902479-219},
booktitle={Materials Research Proceedings}, publisher={Materials Research Forum
LLC}, author={Arian, Bahman and Homberg, Werner and Kersting, Lukas and Trächtler,
Ansgar and Rozo Vasquez, Julian and Walther, Frank}, year={2023} }'
chicago: Arian, Bahman, Werner Homberg, Lukas Kersting, Ansgar Trächtler, Julian
Rozo Vasquez, and Frank Walther. “Cryogenic Reverse Flow Forming of AISI 304L.”
In Materials Research Proceedings. Materials Research Forum LLC, 2023.
https://doi.org/10.21741/9781644902479-219.
ieee: 'B. Arian, W. Homberg, L. Kersting, A. Trächtler, J. Rozo Vasquez, and F.
Walther, “Cryogenic reverse flow forming of AISI 304L,” 2023, doi: 10.21741/9781644902479-219.'
mla: Arian, Bahman, et al. “Cryogenic Reverse Flow Forming of AISI 304L.” Materials
Research Proceedings, Materials Research Forum LLC, 2023, doi:10.21741/9781644902479-219.
short: 'B. Arian, W. Homberg, L. Kersting, A. Trächtler, J. Rozo Vasquez, F. Walther,
in: Materials Research Proceedings, Materials Research Forum LLC, 2023.'
date_created: 2023-05-02T09:43:25Z
date_updated: 2023-12-15T09:32:05Z
department:
- _id: '156'
- _id: '241'
- _id: '153'
doi: 10.21741/9781644902479-219
language:
- iso: eng
main_file_link:
- open_access: '1'
url: https://www.mrforum.com/product/9781644902479-219/
oa: '1'
publication: Materials Research Proceedings
publication_identifier:
issn:
- 2474-395X
publication_status: published
publisher: Materials Research Forum LLC
quality_controlled: '1'
status: public
title: Cryogenic reverse flow forming of AISI 304L
type: conference
user_id: '36287'
year: '2023'
...
---
_id: '48075'
abstract:
- lang: eng
text: AbstractThe constantly increasing challenges
of production technology for the economic and resource-saving production of metallic
workpieces require, among other things, the optimisation of existing processes.
Forming technology, which is confronted with new challenges regarding the quality
of the workpieces, must also organise the individual processes more efficiently
and at the same time more reliably in order to be able to guarantee good workpiece
quality and at the same time to be able to produce economically. One way to meet
these challenges is to carry out the forming processes in closed-loop control
systems using softsensors. Despite the many potential applications of softsensors
in the field of forming technology, there is still no definition of the term softsensor.
This publication therefore proposes a definition of the softsensor based on the
definition of a sensor and the distinction from the observer, which on the one
hand is intended to stimulate scientific discourse and on the other hand is also
intended to form the basis for further scientific work. Based on this definition,
a wide variety of highly topical application examples of various softsensors in
the field of forming technology are given.
article_type: original
author:
- first_name: Werner
full_name: Homberg, Werner
id: '233'
last_name: Homberg
- first_name: Bahman
full_name: Arian, Bahman
id: '36287'
last_name: Arian
- first_name: Viktor
full_name: Arne, Viktor
last_name: Arne
- first_name: Thomas
full_name: Borgert, Thomas
id: '83141'
last_name: Borgert
- first_name: Alexander
full_name: Brosius, Alexander
last_name: Brosius
- first_name: Peter
full_name: Groche, Peter
last_name: Groche
- first_name: Christoph
full_name: Hartmann, Christoph
last_name: Hartmann
- first_name: Lukas
full_name: Kersting, Lukas
last_name: Kersting
- first_name: Robert
full_name: Laue, Robert
last_name: Laue
- first_name: Juri
full_name: Martschin, Juri
last_name: Martschin
- first_name: Thomas
full_name: Meurer, Thomas
last_name: Meurer
- first_name: Daniel
full_name: Spies, Daniel
last_name: Spies
- first_name: A. Erman
full_name: Tekkaya, A. Erman
last_name: Tekkaya
- first_name: Ansgar
full_name: Trächtler, Ansgar
id: '552'
last_name: Trächtler
- first_name: Wolfram
full_name: Volk, Wolfram
last_name: Volk
- first_name: Frank
full_name: Wendler, Frank
last_name: Wendler
- first_name: Malte
full_name: Wrobel, Malte
last_name: Wrobel
citation:
ama: 'Homberg W, Arian B, Arne V, et al. Softsensors: key component of property
control in forming technology. Production Engineering. Published online
2023. doi:10.1007/s11740-023-01227-1'
apa: 'Homberg, W., Arian, B., Arne, V., Borgert, T., Brosius, A., Groche, P., Hartmann,
C., Kersting, L., Laue, R., Martschin, J., Meurer, T., Spies, D., Tekkaya, A.
E., Trächtler, A., Volk, W., Wendler, F., & Wrobel, M. (2023). Softsensors:
key component of property control in forming technology. Production Engineering.
https://doi.org/10.1007/s11740-023-01227-1'
bibtex: '@article{Homberg_Arian_Arne_Borgert_Brosius_Groche_Hartmann_Kersting_Laue_Martschin_et
al._2023, title={Softsensors: key component of property control in forming technology},
DOI={10.1007/s11740-023-01227-1},
journal={Production Engineering}, publisher={Springer Science and Business Media
LLC}, author={Homberg, Werner and Arian, Bahman and Arne, Viktor and Borgert,
Thomas and Brosius, Alexander and Groche, Peter and Hartmann, Christoph and Kersting,
Lukas and Laue, Robert and Martschin, Juri and et al.}, year={2023} }'
chicago: 'Homberg, Werner, Bahman Arian, Viktor Arne, Thomas Borgert, Alexander
Brosius, Peter Groche, Christoph Hartmann, et al. “Softsensors: Key Component
of Property Control in Forming Technology.” Production Engineering, 2023.
https://doi.org/10.1007/s11740-023-01227-1.'
ieee: 'W. Homberg et al., “Softsensors: key component of property control
in forming technology,” Production Engineering, 2023, doi: 10.1007/s11740-023-01227-1.'
mla: 'Homberg, Werner, et al. “Softsensors: Key Component of Property Control in
Forming Technology.” Production Engineering, Springer Science and Business
Media LLC, 2023, doi:10.1007/s11740-023-01227-1.'
short: W. Homberg, B. Arian, V. Arne, T. Borgert, A. Brosius, P. Groche, C. Hartmann,
L. Kersting, R. Laue, J. Martschin, T. Meurer, D. Spies, A.E. Tekkaya, A. Trächtler,
W. Volk, F. Wendler, M. Wrobel, Production Engineering (2023).
date_created: 2023-10-16T07:17:17Z
date_updated: 2023-12-22T10:56:58Z
department:
- _id: '156'
- _id: '153'
- _id: '241'
doi: 10.1007/s11740-023-01227-1
keyword:
- Industrial and Manufacturing Engineering
- Mechanical Engineering
language:
- iso: eng
main_file_link:
- open_access: '1'
url: https://link.springer.com/article/10.1007/s11740-023-01227-1
oa: '1'
publication: Production Engineering
publication_identifier:
issn:
- 0944-6524
- 1863-7353
publication_status: published
publisher: Springer Science and Business Media LLC
quality_controlled: '1'
status: public
title: 'Softsensors: key component of property control in forming technology'
type: journal_article
user_id: '14931'
year: '2023'
...
---
_id: '43031'
abstract:
- lang: eng
text: Abstract. Requirements of multi-material construction involve adjustments
to standard joining techniques. Especially the growing importance of integral
cast components poses additional engineering challenges for the industry. One
approach to achieve these goals are adaptable joining elements formed by friction
spinning. This approach uses friction-induced heat to form customisable joining
elements to join sheets for different boundary conditions, even for brittle cast
materials. It is possible to react immediately to adapt to the joining process
inline and reduce the amount of different joining elements. As the joining partner
serve casting plates of the aluminium casting alloy EN AC–AlSi9, which is processed
in the sand casting. Joining hypoeutectic AlSi alloys constitutes a challenge
because the brittle character of these cause cracks in the joint during conventional
mechanical joining. Furthermore, the friction-induced heat of the novel joining
process causes a finer microstructure in the hypoeutectic AlSi9 casting alloy.
In particular, the eutectic Si is more fine-grained, resulting in higher joint
ductility. This study indicates the joining suitability of a hypoeutectic aluminium
casting alloy in combination with adaptive manufactured additional joining elements.
Here, various mechanical and microstructural investigations validate the influence
of the thermomechanical joining technique. In conclusion, the potential of this
joining process is presented regarding the joinability of cast aluminium components.
author:
- first_name: Thomas
full_name: Borgert, Thomas
id: '83141'
last_name: Borgert
- first_name: Moritz
full_name: Neuser, Moritz
id: '32340'
last_name: Neuser
- first_name: Eugen
full_name: Wiens, Eugen
id: '7888'
last_name: Wiens
- first_name: Olexandr
full_name: Grydin, Olexandr
id: '43822'
last_name: Grydin
- first_name: Werner
full_name: Homberg, Werner
id: '233'
last_name: Homberg
- first_name: Mirko
full_name: Schaper, Mirko
id: '43720'
last_name: Schaper
citation:
ama: 'Borgert T, Neuser M, Wiens E, Grydin O, Homberg W, Schaper M. Influence of
thermo-mechanical joining process on the microstructure of a hypoeutectic aluminium
cast alloy. In: Materials Research Proceedings. Vol 25. Materials Research
Forum LLC; 2023:187-194. doi:10.21741/9781644902417-24'
apa: Borgert, T., Neuser, M., Wiens, E., Grydin, O., Homberg, W., & Schaper,
M. (2023). Influence of thermo-mechanical joining process on the microstructure
of a hypoeutectic aluminium cast alloy. Materials Research Proceedings,
25, 187–194. https://doi.org/10.21741/9781644902417-24
bibtex: '@inproceedings{Borgert_Neuser_Wiens_Grydin_Homberg_Schaper_2023, title={Influence
of thermo-mechanical joining process on the microstructure of a hypoeutectic aluminium
cast alloy}, volume={25}, DOI={10.21741/9781644902417-24},
booktitle={Materials Research Proceedings}, publisher={Materials Research Forum
LLC}, author={Borgert, Thomas and Neuser, Moritz and Wiens, Eugen and Grydin,
Olexandr and Homberg, Werner and Schaper, Mirko}, year={2023}, pages={187–194}
}'
chicago: Borgert, Thomas, Moritz Neuser, Eugen Wiens, Olexandr Grydin, Werner Homberg,
and Mirko Schaper. “Influence of Thermo-Mechanical Joining Process on the Microstructure
of a Hypoeutectic Aluminium Cast Alloy.” In Materials Research Proceedings,
25:187–94. Materials Research Forum LLC, 2023. https://doi.org/10.21741/9781644902417-24.
ieee: 'T. Borgert, M. Neuser, E. Wiens, O. Grydin, W. Homberg, and M. Schaper, “Influence
of thermo-mechanical joining process on the microstructure of a hypoeutectic aluminium
cast alloy,” in Materials Research Proceedings, Nürnberg, 2023, vol. 25,
pp. 187–194, doi: 10.21741/9781644902417-24.'
mla: Borgert, Thomas, et al. “Influence of Thermo-Mechanical Joining Process on
the Microstructure of a Hypoeutectic Aluminium Cast Alloy.” Materials Research
Proceedings, vol. 25, Materials Research Forum LLC, 2023, pp. 187–94, doi:10.21741/9781644902417-24.
short: 'T. Borgert, M. Neuser, E. Wiens, O. Grydin, W. Homberg, M. Schaper, in:
Materials Research Proceedings, Materials Research Forum LLC, 2023, pp. 187–194.'
conference:
end_date: 05.04.2023
location: Nürnberg
name: 20th International Conference on Sheet Metal
start_date: 02.04.2023
date_created: 2023-03-16T14:59:01Z
date_updated: 2024-03-14T15:22:17Z
department:
- _id: '156'
- _id: '158'
doi: 10.21741/9781644902417-24
intvolume: ' 25'
language:
- iso: eng
page: 187-194
project:
- _id: '147'
name: 'TRR 285 – C03: TRR 285 - Subproject C03'
- _id: '136'
name: 'TRR 285 – A02: TRR 285 - Subproject A02'
publication: Materials Research Proceedings
publication_identifier:
issn:
- 2474-395X
publication_status: published
publisher: Materials Research Forum LLC
quality_controlled: '1'
status: public
title: Influence of thermo-mechanical joining process on the microstructure of a hypoeutectic
aluminium cast alloy
type: conference
user_id: '32340'
volume: 25
year: '2023'
...