---
_id: '54847'
abstract:
- lang: eng
  text: The widespread adoption of ultra-high strength steels, due to their high bulk
    resistivity, intensifies expulsion issues in resistance spot welding (RSW), deteriorating
    both the spot weld and surface quality. This study presents a novel approach to
    prevent expulsion by employing a preheating current. Through characteristic analysis
    of joint formation under critical welding current, the importance of plastic material
    encapsulation around the weld nugget (plastic shell) at high temperatures in preventing
    expulsion is highlighted. To evaluate the effect of preheating on the plastic
    shell and understand its mechanism in expulsion prevention, a two-dimensional
    welding simulation model for dissimilar ultra-high strength steel joints was established.
    The results showed that optimal preheating enhances the thickness of the plastic
    shell, improving its ability to encapsulate the weld nugget during the primary
    welding phase, thereby diminishing expulsion risks. Experimental validation confirmed
    that by employing the optimal preheating current, the maximum nugget diameter
    was enhanced to 9.42 mm, marking an increase of 13.4 % and extending the weldable
    current range by 27.5 %. Under quasi-static cross-tensile loading, joints with
    preheating demonstrated a 7.9 % enhancement in maximum load-bearing capacity compared
    to joints without preheating, showing a reproducible and complete pull-out failure
    mode within the heat-affected zone. This study offers a prevention method based
    on underlying mechanisms, providing a new perspective for future research on welding
    parameter optimization with the aim of expulsion prevention.
article_type: original
author:
- first_name: Keke
  full_name: Yang, Keke
  id: '65085'
  last_name: Yang
  orcid: 0000-0001-9201-9304
- first_name: Bassel
  full_name: El-Sari, Bassel
  last_name: El-Sari
- first_name: Viktoria
  full_name: Olfert, Viktoria
  id: '5974'
  last_name: Olfert
- first_name: Zhuoqun
  full_name: Wang, Zhuoqun
  last_name: Wang
- first_name: Max
  full_name: Biegler, Max
  last_name: Biegler
- first_name: Michael
  full_name: Rethmeier, Michael
  last_name: Rethmeier
- first_name: Gerson
  full_name: Meschut, Gerson
  id: '32056'
  last_name: Meschut
  orcid: 0000-0002-2763-1246
citation:
  ama: 'Yang K, El-Sari B, Olfert V, et al. Expulsion prevention in resistance spot
    welding of dissimilar joints with ultra-high strength steel: An analysis of the
    mechanism and effect of preheating current. <i>Journal of Manufacturing Processes</i>.
    2024;124:489-502. doi:<a href="https://doi.org/10.1016/j.jmapro.2024.06.034">10.1016/j.jmapro.2024.06.034</a>'
  apa: 'Yang, K., El-Sari, B., Olfert, V., Wang, Z., Biegler, M., Rethmeier, M., &#38;
    Meschut, G. (2024). Expulsion prevention in resistance spot welding of dissimilar
    joints with ultra-high strength steel: An analysis of the mechanism and effect
    of preheating current. <i>Journal of Manufacturing Processes</i>, <i>124</i>,
    489–502. <a href="https://doi.org/10.1016/j.jmapro.2024.06.034">https://doi.org/10.1016/j.jmapro.2024.06.034</a>'
  bibtex: '@article{Yang_El-Sari_Olfert_Wang_Biegler_Rethmeier_Meschut_2024, title={Expulsion
    prevention in resistance spot welding of dissimilar joints with ultra-high strength
    steel: An analysis of the mechanism and effect of preheating current}, volume={124},
    DOI={<a href="https://doi.org/10.1016/j.jmapro.2024.06.034">10.1016/j.jmapro.2024.06.034</a>},
    journal={Journal of Manufacturing Processes}, publisher={Elsevier BV}, author={Yang,
    Keke and El-Sari, Bassel and Olfert, Viktoria and Wang, Zhuoqun and Biegler, Max
    and Rethmeier, Michael and Meschut, Gerson}, year={2024}, pages={489–502} }'
  chicago: 'Yang, Keke, Bassel El-Sari, Viktoria Olfert, Zhuoqun Wang, Max Biegler,
    Michael Rethmeier, and Gerson Meschut. “Expulsion Prevention in Resistance Spot
    Welding of Dissimilar Joints with Ultra-High Strength Steel: An Analysis of the
    Mechanism and Effect of Preheating Current.” <i>Journal of Manufacturing Processes</i>
    124 (2024): 489–502. <a href="https://doi.org/10.1016/j.jmapro.2024.06.034">https://doi.org/10.1016/j.jmapro.2024.06.034</a>.'
  ieee: 'K. Yang <i>et al.</i>, “Expulsion prevention in resistance spot welding of
    dissimilar joints with ultra-high strength steel: An analysis of the mechanism
    and effect of preheating current,” <i>Journal of Manufacturing Processes</i>,
    vol. 124, pp. 489–502, 2024, doi: <a href="https://doi.org/10.1016/j.jmapro.2024.06.034">10.1016/j.jmapro.2024.06.034</a>.'
  mla: 'Yang, Keke, et al. “Expulsion Prevention in Resistance Spot Welding of Dissimilar
    Joints with Ultra-High Strength Steel: An Analysis of the Mechanism and Effect
    of Preheating Current.” <i>Journal of Manufacturing Processes</i>, vol. 124, Elsevier
    BV, 2024, pp. 489–502, doi:<a href="https://doi.org/10.1016/j.jmapro.2024.06.034">10.1016/j.jmapro.2024.06.034</a>.'
  short: K. Yang, B. El-Sari, V. Olfert, Z. Wang, M. Biegler, M. Rethmeier, G. Meschut,
    Journal of Manufacturing Processes 124 (2024) 489–502.
date_created: 2024-06-23T21:58:29Z
date_updated: 2024-10-18T06:59:27Z
ddc:
- '670'
department:
- _id: '157'
doi: 10.1016/j.jmapro.2024.06.034
file:
- access_level: closed
  content_type: application/pdf
  creator: kekeyang
  date_created: 2024-06-23T21:59:20Z
  date_updated: 2024-06-23T21:59:20Z
  file_id: '54848'
  file_name: 1-s2.0-S1526612524006145-main.pdf
  file_size: 12432409
  relation: main_file
  success: 1
file_date_updated: 2024-06-23T21:59:20Z
has_accepted_license: '1'
intvolume: '       124'
keyword:
- Expulsion Resistance spot welding Finite element modelling Preheating Weldable current
  range Ultra-high strength steel
language:
- iso: eng
main_file_link:
- open_access: '1'
  url: https://www.sciencedirect.com/science/article/pii/S1526612524006145
oa: '1'
page: 489-502
publication: Journal of Manufacturing Processes
publication_identifier:
  issn:
  - 1526-6125
publication_status: published
publisher: Elsevier BV
quality_controlled: '1'
status: public
title: 'Expulsion prevention in resistance spot welding of dissimilar joints with
  ultra-high strength steel: An analysis of the mechanism and effect of preheating
  current'
type: journal_article
user_id: '65085'
volume: 124
year: '2024'
...
---
_id: '43441'
abstract:
- lang: eng
  text: "This paper reveals the 3D character of the intermetallic layer at the aluminum–steel
    interface which pops\r\nup above the original sample surface during annealing.
    Popping out of the intermetallics was proven using\r\natomic force microscopy.
    The phase expands out of the plane due to the exothermic formation of the Al5Fe2\r\nphase
    and the feasibility of surface diffusion. Milling by a focused ion beam enabled
    the comparison of the\r\nchemical composition of the surface layer with the bulk
    interface, showing no difference. The growth direction\r\nis both towards aluminum
    and steel — the main diffusion flux is from aluminum towards steel, and the new\r\nintermetallic
    phase emerges at the steel side. The shortage of Al atoms causes a shift of the
    intermetallic as a\r\nwhole towards aluminum."
article_number: '112043'
article_type: original
author:
- first_name: Michaela
  full_name: Šlapáková, Michaela
  last_name: Šlapáková
- first_name: Barbora
  full_name: Kihoulou, Barbora
  last_name: Kihoulou
- first_name: Jozef
  full_name: Veselý, Jozef
  last_name: Veselý
- first_name: Peter
  full_name: Minárik, Peter
  last_name: Minárik
- first_name: Klaudia
  full_name: Fekete, Klaudia
  last_name: Fekete
- first_name: Michal
  full_name: Knapek, Michal
  last_name: Knapek
- first_name: Rostislav
  full_name: Králík, Rostislav
  last_name: Králík
- first_name: Olexandr
  full_name: Grydin, Olexandr
  id: '43822'
  last_name: Grydin
- first_name: Mykhailo
  full_name: Stolbchenko, Mykhailo
  last_name: Stolbchenko
- first_name: Mirko
  full_name: Schaper, Mirko
  id: '43720'
  last_name: Schaper
citation:
  ama: Šlapáková M, Kihoulou B, Veselý J, et al. 3D-structure of intermetallic interface
    layer in Al–steel clad material. <i>Vacuum</i>. 2023;212. doi:<a href="https://doi.org/10.1016/j.vacuum.2023.112043">10.1016/j.vacuum.2023.112043</a>
  apa: Šlapáková, M., Kihoulou, B., Veselý, J., Minárik, P., Fekete, K., Knapek, M.,
    Králík, R., Grydin, O., Stolbchenko, M., &#38; Schaper, M. (2023). 3D-structure
    of intermetallic interface layer in Al–steel clad material. <i>Vacuum</i>, <i>212</i>,
    Article 112043. <a href="https://doi.org/10.1016/j.vacuum.2023.112043">https://doi.org/10.1016/j.vacuum.2023.112043</a>
  bibtex: '@article{Šlapáková_Kihoulou_Veselý_Minárik_Fekete_Knapek_Králík_Grydin_Stolbchenko_Schaper_2023,
    title={3D-structure of intermetallic interface layer in Al–steel clad material},
    volume={212}, DOI={<a href="https://doi.org/10.1016/j.vacuum.2023.112043">10.1016/j.vacuum.2023.112043</a>},
    number={112043}, journal={Vacuum}, publisher={Elsevier BV}, author={Šlapáková,
    Michaela and Kihoulou, Barbora and Veselý, Jozef and Minárik, Peter and Fekete,
    Klaudia and Knapek, Michal and Králík, Rostislav and Grydin, Olexandr and Stolbchenko,
    Mykhailo and Schaper, Mirko}, year={2023} }'
  chicago: Šlapáková, Michaela, Barbora Kihoulou, Jozef Veselý, Peter Minárik, Klaudia
    Fekete, Michal Knapek, Rostislav Králík, Olexandr Grydin, Mykhailo Stolbchenko,
    and Mirko Schaper. “3D-Structure of Intermetallic Interface Layer in Al–Steel
    Clad Material.” <i>Vacuum</i> 212 (2023). <a href="https://doi.org/10.1016/j.vacuum.2023.112043">https://doi.org/10.1016/j.vacuum.2023.112043</a>.
  ieee: 'M. Šlapáková <i>et al.</i>, “3D-structure of intermetallic interface layer
    in Al–steel clad material,” <i>Vacuum</i>, vol. 212, Art. no. 112043, 2023, doi:
    <a href="https://doi.org/10.1016/j.vacuum.2023.112043">10.1016/j.vacuum.2023.112043</a>.'
  mla: Šlapáková, Michaela, et al. “3D-Structure of Intermetallic Interface Layer
    in Al–Steel Clad Material.” <i>Vacuum</i>, vol. 212, 112043, Elsevier BV, 2023,
    doi:<a href="https://doi.org/10.1016/j.vacuum.2023.112043">10.1016/j.vacuum.2023.112043</a>.
  short: M. Šlapáková, B. Kihoulou, J. Veselý, P. Minárik, K. Fekete, M. Knapek, R.
    Králík, O. Grydin, M. Stolbchenko, M. Schaper, Vacuum 212 (2023).
date_created: 2023-04-08T17:24:40Z
date_updated: 2023-06-01T14:22:15Z
department:
- _id: '158'
doi: 10.1016/j.vacuum.2023.112043
intvolume: '       212'
keyword:
- Al-steel clad
- twin-roll casting
- 3D characterization
- atomic force microscopy
- diffusion direction
- surface growth
language:
- iso: eng
publication: Vacuum
publication_identifier:
  issn:
  - 0042-207X
publication_status: published
publisher: Elsevier BV
quality_controlled: '1'
status: public
title: 3D-structure of intermetallic interface layer in Al–steel clad material
type: journal_article
user_id: '43720'
volume: 212
year: '2023'
...
---
_id: '45782'
abstract:
- lang: eng
  text: <jats:p>The development of automotive components with reduced greenhouse gas
    (GHG) emissions is needed to reduce overall vehicle emissions. Life Cycle Engineering
    (LCE) based on Life Cycle Assessment (LCA) supports this by providing holistic
    information and improvement potentials regarding eco-efficient products. Key factors
    influencing LCAs of automotive components, such as material production, will change
    in the future. First approaches for integrating future scenarios for these key
    factors into LCE already exist, but they only consider a limited number of parameters
    and scenarios. This work aims to develop a method that can be practically applied
    in the industry for integrating prospective LCAs (pLCA) into the LCE of automotive
    components, considering relevant parameters and consistent scenarios. Therefore,
    pLCA methods are further developed to investigate the influence of future scenarios
    on the GHG emissions of automotive components. The practical application is demonstrated
    for a vehicle component with different design options. This paper shows that different
    development paths of the foreground and background system can shift the ecological
    optimum of design alternatives. Therefore, future pathways of relevant parameters
    must be considered comprehensively to reduce GHG emissions of future vehicles.
    This work contributes to the methodological and practical integration of pLCA
    into automotive development processes and provides quantitative results.</jats:p>
article_number: '10041'
author:
- first_name: Julian
  full_name: Grenz, Julian
  last_name: Grenz
- first_name: Moritz
  full_name: Ostermann, Moritz
  id: '44763'
  last_name: Ostermann
  orcid: https://orcid.org/0000-0003-1146-0443
- first_name: Karoline
  full_name: Käsewieter, Karoline
  last_name: Käsewieter
- first_name: Felipe
  full_name: Cerdas, Felipe
  last_name: Cerdas
- first_name: Thorsten
  full_name: Marten, Thorsten
  id: '338'
  last_name: Marten
- first_name: Christoph
  full_name: Herrmann, Christoph
  last_name: Herrmann
- first_name: Thomas
  full_name: Tröster, Thomas
  id: '553'
  last_name: Tröster
citation:
  ama: Grenz J, Ostermann M, Käsewieter K, et al. Integrating Prospective LCA in the
    Development of Automotive Components. <i>Sustainability</i>. 2023;15(13). doi:<a
    href="https://doi.org/10.3390/su151310041">10.3390/su151310041</a>
  apa: Grenz, J., Ostermann, M., Käsewieter, K., Cerdas, F., Marten, T., Herrmann,
    C., &#38; Tröster, T. (2023). Integrating Prospective LCA in the Development of
    Automotive Components. <i>Sustainability</i>, <i>15</i>(13), Article 10041. <a
    href="https://doi.org/10.3390/su151310041">https://doi.org/10.3390/su151310041</a>
  bibtex: '@article{Grenz_Ostermann_Käsewieter_Cerdas_Marten_Herrmann_Tröster_2023,
    title={Integrating Prospective LCA in the Development of Automotive Components},
    volume={15}, DOI={<a href="https://doi.org/10.3390/su151310041">10.3390/su151310041</a>},
    number={1310041}, journal={Sustainability}, publisher={MDPI AG}, author={Grenz,
    Julian and Ostermann, Moritz and Käsewieter, Karoline and Cerdas, Felipe and Marten,
    Thorsten and Herrmann, Christoph and Tröster, Thomas}, year={2023} }'
  chicago: Grenz, Julian, Moritz Ostermann, Karoline Käsewieter, Felipe Cerdas, Thorsten
    Marten, Christoph Herrmann, and Thomas Tröster. “Integrating Prospective LCA in
    the Development of Automotive Components.” <i>Sustainability</i> 15, no. 13 (2023).
    <a href="https://doi.org/10.3390/su151310041">https://doi.org/10.3390/su151310041</a>.
  ieee: 'J. Grenz <i>et al.</i>, “Integrating Prospective LCA in the Development of
    Automotive Components,” <i>Sustainability</i>, vol. 15, no. 13, Art. no. 10041,
    2023, doi: <a href="https://doi.org/10.3390/su151310041">10.3390/su151310041</a>.'
  mla: Grenz, Julian, et al. “Integrating Prospective LCA in the Development of Automotive
    Components.” <i>Sustainability</i>, vol. 15, no. 13, 10041, MDPI AG, 2023, doi:<a
    href="https://doi.org/10.3390/su151310041">10.3390/su151310041</a>.
  short: J. Grenz, M. Ostermann, K. Käsewieter, F. Cerdas, T. Marten, C. Herrmann,
    T. Tröster, Sustainability 15 (2023).
date_created: 2023-06-27T06:35:20Z
date_updated: 2023-06-27T06:39:47Z
department:
- _id: '9'
- _id: '321'
- _id: '149'
doi: 10.3390/su151310041
intvolume: '        15'
issue: '13'
keyword:
- prospective LCA
- life cycle engineering (LCE)
- lightweight design
- automotive components
- body parts
- circular economy
- steel
- aluminum
- hybrid materials
- fiber metal laminates
language:
- iso: eng
main_file_link:
- open_access: '1'
  url: https://www.mdpi.com/2071-1050/15/13/10041
oa: '1'
publication: Sustainability
publication_identifier:
  issn:
  - 2071-1050
publication_status: published
publisher: MDPI AG
quality_controlled: '1'
related_material:
  link:
  - relation: supplementary_material
    url: ' https://www.mdpi.com/article/10.3390/su151310041/s1'
status: public
title: Integrating Prospective LCA in the Development of Automotive Components
type: journal_article
user_id: '44763'
volume: 15
year: '2023'
...
---
_id: '21549'
article_number: '102851'
article_type: original
author:
- first_name: Jannik
  full_name: Kowatz, Jannik
  id: '32252'
  last_name: Kowatz
  orcid: 0000-0002-4972-4718
- first_name: Dominik
  full_name: Teutenberg, Dominik
  id: '537'
  last_name: Teutenberg
- first_name: Gerson
  full_name: Meschut, Gerson
  id: '32056'
  last_name: Meschut
  orcid: 0000-0002-2763-1246
citation:
  ama: Kowatz J, Teutenberg D, Meschut G. Experimental failure analysis of adhesively
    bonded steel/CFRP joints under quasi-static and cyclic tensile-shear and peel
    loading. <i>International Journal of Adhesion and Adhesives</i>. 2021;107. doi:<a
    href="https://doi.org/10.1016/j.ijadhadh.2021.102851">10.1016/j.ijadhadh.2021.102851</a>
  apa: Kowatz, J., Teutenberg, D., &#38; Meschut, G. (2021). Experimental failure
    analysis of adhesively bonded steel/CFRP joints under quasi-static and cyclic
    tensile-shear and peel loading. <i>International Journal of Adhesion and Adhesives</i>,
    <i>107</i>, Article 102851. <a href="https://doi.org/10.1016/j.ijadhadh.2021.102851">https://doi.org/10.1016/j.ijadhadh.2021.102851</a>
  bibtex: '@article{Kowatz_Teutenberg_Meschut_2021, title={Experimental failure analysis
    of adhesively bonded steel/CFRP joints under quasi-static and cyclic tensile-shear
    and peel loading}, volume={107}, DOI={<a href="https://doi.org/10.1016/j.ijadhadh.2021.102851">10.1016/j.ijadhadh.2021.102851</a>},
    number={102851}, journal={International Journal of Adhesion and Adhesives}, publisher={Elsevier},
    author={Kowatz, Jannik and Teutenberg, Dominik and Meschut, Gerson}, year={2021}
    }'
  chicago: Kowatz, Jannik, Dominik Teutenberg, and Gerson Meschut. “Experimental Failure
    Analysis of Adhesively Bonded Steel/CFRP Joints under Quasi-Static and Cyclic
    Tensile-Shear and Peel Loading.” <i>International Journal of Adhesion and Adhesives</i>
    107 (2021). <a href="https://doi.org/10.1016/j.ijadhadh.2021.102851">https://doi.org/10.1016/j.ijadhadh.2021.102851</a>.
  ieee: 'J. Kowatz, D. Teutenberg, and G. Meschut, “Experimental failure analysis
    of adhesively bonded steel/CFRP joints under quasi-static and cyclic tensile-shear
    and peel loading,” <i>International Journal of Adhesion and Adhesives</i>, vol.
    107, Art. no. 102851, 2021, doi: <a href="https://doi.org/10.1016/j.ijadhadh.2021.102851">10.1016/j.ijadhadh.2021.102851</a>.'
  mla: Kowatz, Jannik, et al. “Experimental Failure Analysis of Adhesively Bonded
    Steel/CFRP Joints under Quasi-Static and Cyclic Tensile-Shear and Peel Loading.”
    <i>International Journal of Adhesion and Adhesives</i>, vol. 107, 102851, Elsevier,
    2021, doi:<a href="https://doi.org/10.1016/j.ijadhadh.2021.102851">10.1016/j.ijadhadh.2021.102851</a>.
  short: J. Kowatz, D. Teutenberg, G. Meschut, International Journal of Adhesion and
    Adhesives 107 (2021).
date_created: 2021-03-22T14:15:22Z
date_updated: 2023-01-16T10:18:26Z
department:
- _id: '157'
doi: 10.1016/j.ijadhadh.2021.102851
intvolume: '       107'
keyword:
- Epoxy adhesive
- fatigue strength
- shear
- peel
- Steel-CFRP joints
language:
- iso: eng
publication: International Journal of Adhesion and Adhesives
publication_identifier:
  issn:
  - 0143-7496
publication_status: published
publisher: Elsevier
quality_controlled: '1'
status: public
title: Experimental failure analysis of adhesively bonded steel/CFRP joints under
  quasi-static and cyclic tensile-shear and peel loading
type: journal_article
user_id: '32252'
volume: 107
year: '2021'
...
---
_id: '23465'
abstract:
- lang: eng
  text: One of the main objectives of production engineering is to reproducibly manufacture
    (complex) defect-free parts. To achieve this, it is necessary to employ an appropriate
    process or tool design. While this will generally prove successful, it cannot,
    however, offset stochastic defects with local variations in material properties.
    Closed-loop process control represents a promising approach for a solution in
    this context. The state of the art involves using this approach to control geometric
    parameters such as a length. So far, no research or applications have been conducted
    with closed-loop control for microstructure and product properties. In the project
    on which this paper is based, the local martensite content of parts is to be adjusted
    in a highly precise and reproducible manner. The forming process employed is a
    special, property-controlled flow-forming process. A model-based controller is
    thus to generate corresponding correction values for the tool-path geometry and
    tool-path velocity on the basis of online martensite content measurements. For
    the controller model, it is planned to use a special process or microstructure
    (correlation) model. The planned paper not only describes the experimental setup
    but also presents results of initial experimental investigations for subsequent
    use in the closed-loop control of α’-martensite content during flow-forming.
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: Markus
  full_name: Riepold, Markus
  last_name: Riepold
- 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, Riepold M, Trächtler A, Rozo Vasquez J, Walther F. Forming
    of metastable austenitic stainless steel tubes with axially graded martensite
    content by flow-forming. In: ULiège Library; 2021.'
  apa: Arian, B., Homberg, W., Riepold, M., Trächtler, A., Rozo Vasquez, J., &#38;
    Walther, F. (2021). <i>Forming of metastable austenitic stainless steel tubes
    with axially graded martensite content by flow-forming</i>. 24th International
    Conference on Material Forming - ESAFORM 2021, Liège, Belgium.
  bibtex: '@inproceedings{Arian_Homberg_Riepold_Trächtler_Rozo Vasquez_Walther_2021,
    place={Liège}, title={Forming of metastable austenitic stainless steel tubes with
    axially graded martensite content by flow-forming}, publisher={ULiège Library},
    author={Arian, Bahman and Homberg, Werner and Riepold, Markus and Trächtler, Ansgar
    and Rozo Vasquez, Julian and Walther, Frank}, year={2021} }'
  chicago: 'Arian, Bahman, Werner Homberg, Markus Riepold, Ansgar Trächtler, Julian
    Rozo Vasquez, and Frank Walther. “Forming of Metastable Austenitic Stainless Steel
    Tubes with Axially Graded Martensite Content by Flow-Forming.” Liège: ULiège Library,
    2021.'
  ieee: B. Arian, W. Homberg, M. Riepold, A. Trächtler, J. Rozo Vasquez, and F. Walther,
    “Forming of metastable austenitic stainless steel tubes with axially graded martensite
    content by flow-forming,” presented at the 24th International Conference on Material
    Forming - ESAFORM 2021, Liège, Belgium, 2021.
  mla: Arian, Bahman, et al. <i>Forming of Metastable Austenitic Stainless Steel Tubes
    with Axially Graded Martensite Content by Flow-Forming</i>. ULiège Library, 2021.
  short: 'B. Arian, W. Homberg, M. Riepold, A. Trächtler, J. Rozo Vasquez, F. Walther,
    in: ULiège Library, Liège, 2021.'
conference:
  end_date: 2021-04-16
  location: Liège, Belgium
  name: 24th International Conference on Material Forming - ESAFORM 2021
  start_date: 2021-04-14
date_created: 2021-08-23T13:00:35Z
date_updated: 2023-05-02T08:27:48Z
department:
- _id: '156'
- _id: '153'
- _id: '241'
keyword:
- Flow-forming
- Spinning
- Process Strategy
- Martensite Content
- Property Control
- Micromagnetic Measurement
- Metastable Austenitic Stainless Steel
language:
- iso: eng
main_file_link:
- open_access: '1'
  url: https://popups.uliege.be/esaform21/index.php?id=2759
oa: '1'
place: Liège
publication_identifier:
  eisbn:
  - 978-2-87019-303-7
  isbn:
  - 978-2-87019-302-0
publication_status: published
publisher: ULiège Library
quality_controlled: '1'
status: public
title: Forming of metastable austenitic stainless steel tubes with axially graded
  martensite content by flow-forming
type: conference
user_id: '36287'
year: '2021'
...
---
_id: '22930'
abstract:
- lang: eng
  text: Self-piercing riveting is an established technique for joining multi-material
    structures in car body manufacturing. Rivets for self-piercing riveting differ
    in their geometry, the material used, the condition of the material and their
    surface condition. To shorten the manufacturing process by omitting the heat treatment
    and the coating process, the authors have elaborated a concept for the use of
    stainless steel with high strain hardening as a rivet material. The focus of the
    present investigation is on the evaluation of the influences of the rivet’s geometry
    and material on its deformation behaviour. Conventional rivets of types P and
    HD2, a rivet with an improved geometry made of treatable steel 38B2, and rivets
    made of the stainless steels 1.3815 and 1.4541 are examined. The analysis is conducted
    by means of multi-step joining tests for two material combinations comprising
    high-strength steel HCT70X and aluminium EN AW-5083. The joints are cut to provide
    a cross-section and the deformation behaviour of the different rivets is analysed
    on the basis of the measured changes in geometry and hardness. In parallel, an
    examination of the force-stroke curves provides further insights. It can be demonstrated
    that, besides the geometry, the material strength, in particular, has a significant
    influence on the deformation behaviour of the rivet. The strength of steel 1.4541
    is seen to be too low for the joining task, while the strength of steel 1.3815
    is sufficient, and hence the investigation confirms the capability of rivets made
    of 1.3815 for joining even challenging material combinations.
author:
- first_name: Benedikt
  full_name: Uhe, Benedikt
  id: '38131'
  last_name: Uhe
- first_name: Clara-Maria
  full_name: Kuball, Clara-Maria
  last_name: Kuball
- first_name: Marion
  full_name: Merklein, Marion
  last_name: Merklein
- first_name: Gerson
  full_name: Meschut, Gerson
  id: '32056'
  last_name: Meschut
  orcid: 0000-0002-2763-1246
citation:
  ama: 'Uhe B, Kuball C-M, Merklein M, Meschut G. Self-Piercing Riveting Using Rivets
    Made of Stainless Steel with High Strain Hardening. In: Daehn G, Cao J, Kinsey
    B, Tekkaya E, Vivek A, Yoshida Y, eds. <i>Forming the Future - Proceedings of
    the 13th International Conference on the Technology of Plasticity. The Minerals,
    Metals &#38; Materials Series.</i> Springer; 2021:1495-1506. doi:<a href="https://doi.org/10.1007/978-3-030-75381-8_124">10.1007/978-3-030-75381-8_124</a>'
  apa: Uhe, B., Kuball, C.-M., Merklein, M., &#38; Meschut, G. (2021). Self-Piercing
    Riveting Using Rivets Made of Stainless Steel with High Strain Hardening. In G.
    Daehn, J. Cao, B. Kinsey, E. Tekkaya, A. Vivek, &#38; Y. Yoshida (Eds.), <i>Forming
    the Future - Proceedings of the 13th International Conference on the Technology
    of Plasticity. The Minerals, Metals &#38; Materials Series.</i> (pp. 1495–1506).
    Springer. <a href="https://doi.org/10.1007/978-3-030-75381-8_124">https://doi.org/10.1007/978-3-030-75381-8_124</a>
  bibtex: '@inbook{Uhe_Kuball_Merklein_Meschut_2021, place={Cham}, title={Self-Piercing
    Riveting Using Rivets Made of Stainless Steel with High Strain Hardening}, DOI={<a
    href="https://doi.org/10.1007/978-3-030-75381-8_124">10.1007/978-3-030-75381-8_124</a>},
    booktitle={Forming the Future - Proceedings of the 13th International Conference
    on the Technology of Plasticity. The Minerals, Metals &#38; Materials Series.},
    publisher={Springer}, author={Uhe, Benedikt and Kuball, Clara-Maria and Merklein,
    Marion and Meschut, Gerson}, editor={Daehn, Glenn and Cao, Jian and Kinsey, Brad
    and Tekkaya, Erman and Vivek, Anupam and Yoshida, Yoshinori}, year={2021}, pages={1495–1506}
    }'
  chicago: 'Uhe, Benedikt, Clara-Maria Kuball, Marion Merklein, and Gerson Meschut.
    “Self-Piercing Riveting Using Rivets Made of Stainless Steel with High Strain
    Hardening.” In <i>Forming the Future - Proceedings of the 13th International Conference
    on the Technology of Plasticity. The Minerals, Metals &#38; Materials Series.</i>,
    edited by Glenn Daehn, Jian Cao, Brad Kinsey, Erman Tekkaya, Anupam Vivek, and
    Yoshinori Yoshida, 1495–1506. Cham: Springer, 2021. <a href="https://doi.org/10.1007/978-3-030-75381-8_124">https://doi.org/10.1007/978-3-030-75381-8_124</a>.'
  ieee: 'B. Uhe, C.-M. Kuball, M. Merklein, and G. Meschut, “Self-Piercing Riveting
    Using Rivets Made of Stainless Steel with High Strain Hardening,” in <i>Forming
    the Future - Proceedings of the 13th International Conference on the Technology
    of Plasticity. The Minerals, Metals &#38; Materials Series.</i>, G. Daehn, J.
    Cao, B. Kinsey, E. Tekkaya, A. Vivek, and Y. Yoshida, Eds. Cham: Springer, 2021,
    pp. 1495–1506.'
  mla: Uhe, Benedikt, et al. “Self-Piercing Riveting Using Rivets Made of Stainless
    Steel with High Strain Hardening.” <i>Forming the Future - Proceedings of the
    13th International Conference on the Technology of Plasticity. The Minerals, Metals
    &#38; Materials Series.</i>, edited by Glenn Daehn et al., Springer, 2021, pp.
    1495–506, doi:<a href="https://doi.org/10.1007/978-3-030-75381-8_124">10.1007/978-3-030-75381-8_124</a>.
  short: 'B. Uhe, C.-M. Kuball, M. Merklein, G. Meschut, in: G. Daehn, J. Cao, B.
    Kinsey, E. Tekkaya, A. Vivek, Y. Yoshida (Eds.), Forming the Future - Proceedings
    of the 13th International Conference on the Technology of Plasticity. The Minerals,
    Metals &#38; Materials Series., Springer, Cham, 2021, pp. 1495–1506.'
date_created: 2021-08-04T14:02:32Z
date_updated: 2026-02-27T10:40:39Z
department:
- _id: '157'
doi: 10.1007/978-3-030-75381-8_124
editor:
- first_name: Glenn
  full_name: Daehn, Glenn
  last_name: Daehn
- first_name: Jian
  full_name: Cao, Jian
  last_name: Cao
- first_name: Brad
  full_name: Kinsey, Brad
  last_name: Kinsey
- first_name: Erman
  full_name: Tekkaya, Erman
  last_name: Tekkaya
- first_name: Anupam
  full_name: Vivek, Anupam
  last_name: Vivek
- first_name: Yoshinori
  full_name: Yoshida, Yoshinori
  last_name: Yoshida
keyword:
- Self-piercing riveting
- Lightweight design
- Deformation behaviour
- Stainless steel
- High nitrogen steel
language:
- iso: eng
page: 1495-1506
place: Cham
publication: Forming the Future - Proceedings of the 13th International Conference
  on the Technology of Plasticity. The Minerals, Metals & Materials Series.
publication_status: published
publisher: Springer
quality_controlled: '1'
status: public
title: Self-Piercing Riveting Using Rivets Made of Stainless Steel with High Strain
  Hardening
type: book_chapter
user_id: '53912'
year: '2021'
...
---
_id: '22274'
abstract:
- lang: eng
  text: 'The use of high-strength steel and aluminium is rising due to the intensified
    efforts being made in lightweight design, and self-piercing riveting is becoming
    increasingly important. Conventional rivets for self-piercing riveting differ
    in their geometry, the material used, the condition of the material and the coating.
    To shorten the manufacturing process, the use of stainless steel with high strain
    hardening as the rivet material represents a promising approach. This allows the
    coating of the rivets to be omitted due to the corrosion resistance of the material
    and, since the strength of the stainless steel is achieved by cold forming, heat
    treatment is no longer required. In addition, it is possible to adjust the local
    strength within the rivet. Because of that, the authors have elaborated a concept
    for using high nitrogen steel 1.3815 as the rivet material. The present investigation
    focusses on the joint strength in order to evaluate the capability of rivets in
    high nitrogen steel by comparison to conventional rivets made of treatable steel.
    Due to certain challenges in the forming process of the high nitrogen steel rivets,
    deviations result from the targeted rivet geometry. Mainly these deviations cause
    a lower joint strength with these rivets, which is, however, adequate. All in
    all, the capability of the new rivet is proven by the results of this investigation. '
author:
- first_name: Benedikt
  full_name: Uhe, Benedikt
  id: '38131'
  last_name: Uhe
- first_name: Clara-Maria
  full_name: Kuball, Clara-Maria
  last_name: Kuball
- first_name: Marion
  full_name: Merklein, Marion
  last_name: Merklein
- first_name: Gerson
  full_name: Meschut, Gerson
  id: '32056'
  last_name: Meschut
  orcid: 0000-0002-2763-1246
citation:
  ama: 'Uhe B, Kuball C-M, Merklein M, Meschut G. Strength of self-piercing riveted
    Joints with conventional Rivets and Rivets made of High Nitrogen Steel. In: ;
    2021. doi:<a href="https://doi.org/10.25518/esaform21.1911">10.25518/esaform21.1911</a>'
  apa: Uhe, B., Kuball, C.-M., Merklein, M., &#38; Meschut, G. (2021). <i>Strength
    of self-piercing riveted Joints with conventional Rivets and Rivets made of High
    Nitrogen Steel</i>. 24th International Conference on Material Forming (ESAFORM),
    Liège, Belgien. <a href="https://doi.org/10.25518/esaform21.1911">https://doi.org/10.25518/esaform21.1911</a>
  bibtex: '@inproceedings{Uhe_Kuball_Merklein_Meschut_2021, title={Strength of self-piercing
    riveted Joints with conventional Rivets and Rivets made of High Nitrogen Steel},
    DOI={<a href="https://doi.org/10.25518/esaform21.1911">10.25518/esaform21.1911</a>},
    author={Uhe, Benedikt and Kuball, Clara-Maria and Merklein, Marion and Meschut,
    Gerson}, year={2021} }'
  chicago: Uhe, Benedikt, Clara-Maria Kuball, Marion Merklein, and Gerson Meschut.
    “Strength of Self-Piercing Riveted Joints with Conventional Rivets and Rivets
    Made of High Nitrogen Steel,” 2021. <a href="https://doi.org/10.25518/esaform21.1911">https://doi.org/10.25518/esaform21.1911</a>.
  ieee: 'B. Uhe, C.-M. Kuball, M. Merklein, and G. Meschut, “Strength of self-piercing
    riveted Joints with conventional Rivets and Rivets made of High Nitrogen Steel,”
    presented at the 24th International Conference on Material Forming (ESAFORM),
    Liège, Belgien, 2021, doi: <a href="https://doi.org/10.25518/esaform21.1911">10.25518/esaform21.1911</a>.'
  mla: Uhe, Benedikt, et al. <i>Strength of Self-Piercing Riveted Joints with Conventional
    Rivets and Rivets Made of High Nitrogen Steel</i>. 2021, doi:<a href="https://doi.org/10.25518/esaform21.1911">10.25518/esaform21.1911</a>.
  short: 'B. Uhe, C.-M. Kuball, M. Merklein, G. Meschut, in: 2021.'
conference:
  end_date: 2021-04-16
  location: Liège, Belgien
  name: 24th International Conference on Material Forming (ESAFORM)
  start_date: 2021-04-14
date_created: 2021-05-31T10:17:37Z
date_updated: 2026-02-27T10:25:13Z
department:
- _id: '157'
doi: 10.25518/esaform21.1911
keyword:
- Self-piercing Riveting
- Joining Technology
- Rivet Geometry
- Rivet Material
- High Nitrogen Steel
- Joint Strength
language:
- iso: eng
quality_controlled: '1'
status: public
title: Strength of self-piercing riveted Joints with conventional Rivets and Rivets
  made of High Nitrogen Steel
type: conference
user_id: '53912'
year: '2021'
...
---
_id: '19976'
abstract:
- lang: eng
  text: The aim to reduce pollutant emission has led to a trend towards lightweight
    construction in car body development during the last years. As a consequence of
    the resulting need for multi-material design, mechanical joining technologies
    become increasingly important. Mechanical joining allows for the combination of
    dissimilar materials, while thermic joining techniques reach their limits. Self-piercing
    riveting enables the joining of dissimilar materials by using semi-tubular rivets
    as mechanical fasteners. The rivet production, however, is costly and time-consuming,
    as the rivets generally have to be hardened, tempered and coated after forming,
    in order to achieve an adequate strength and corrosion resistance. A promising
    approach to improve the efficiency of the rivet manufacturing is the use of high-strength
    high nitrogen steel as rivet material because these additional process steps would
    not be necessary anymore. As a result of the comparatively high nitrogen content,
    such steels have various beneficial properties like higher strength, good ductility
    and improved corrosion resistance. By cold bulk forming of high nitrogen steels
    high-strength parts can be manufactured due to the strengthening which is caused
    by the high strain hardening. However, high tool loads thereby have to be expected
    and are a major challenge during the production process. Consequently, there is
    a need for appropriate forming strategies. This paper presents key aspects concerning
    the process design for the manufacturing of semi-tubular self-piercing rivets
    made of high-strength steel. The aim is to produce the rivets in several forming
    stages without intermediate heat treatment between the single stages. Due to the
    high strain hardening of the material, a two stage forming concept will be investigated.
    Cup-backward extrusion is chosen as the first process step in order to form the
    rivet shank without forming the rivet foot. Thus, the strain hardening effects
    in the area of the rivet foot are minimized and the tool loads during the following
    process step can be reduced. During the second and final forming stage the detailed
    geometry of the rivet foot and the rivet head is formed. In this context, the
    effect of different variations, for example concerning the final geometry of the
    rivet foot, on the tool load is investigated using multistage numerical analysis.
    Furthermore, the influence of the process temperature on occurring stresses is
    analysed. Based on the results of the investigations, an adequate forming strategy
    and a tool concept for the manufacturing of semi-tubular self-piercing rivets
    made of high-strength steel are presented.
citation:
  ama: Kuball C-M, Uhe B, Meschut G, Merklein M, eds. <i>Process Design for the Forming
    of Semi-Tubular Self-Piercing Rivets Made of High Nitrogen Steel</i>. Vol 50.;
    2020:280-285. doi:<a href="https://doi.org/10.1016/j.promfg.2020.08.052">10.1016/j.promfg.2020.08.052</a>
  apa: Kuball, C.-M., Uhe, B., Meschut, G., &#38; Merklein, M. (Eds.). (2020). <i>Process
    design for the forming of semi-tubular self-piercing rivets made of high nitrogen
    steel</i> (Vol. 50, pp. 280–285). <a href="https://doi.org/10.1016/j.promfg.2020.08.052">https://doi.org/10.1016/j.promfg.2020.08.052</a>
  bibtex: '@book{Kuball_Uhe_Meschut_Merklein_2020, series={Procedia Manufacturing},
    title={Process design for the forming of semi-tubular self-piercing rivets made
    of high nitrogen steel}, volume={50}, DOI={<a href="https://doi.org/10.1016/j.promfg.2020.08.052">10.1016/j.promfg.2020.08.052</a>},
    year={2020}, pages={280–285}, collection={Procedia Manufacturing} }'
  chicago: Kuball, Clara-Maria, Benedikt Uhe, Gerson Meschut, and Marion Merklein,
    eds. <i>Process Design for the Forming of Semi-Tubular Self-Piercing Rivets Made
    of High Nitrogen Steel</i>. Vol. 50. Procedia Manufacturing, 2020. <a href="https://doi.org/10.1016/j.promfg.2020.08.052">https://doi.org/10.1016/j.promfg.2020.08.052</a>.
  ieee: C.-M. Kuball, B. Uhe, G. Meschut, and M. Merklein, Eds., <i>Process design
    for the forming of semi-tubular self-piercing rivets made of high nitrogen steel</i>,
    vol. 50. 2020, pp. 280–285.
  mla: Kuball, Clara-Maria, et al., editors. <i>Process Design for the Forming of
    Semi-Tubular Self-Piercing Rivets Made of High Nitrogen Steel</i>. 2020, pp. 280–85,
    doi:<a href="https://doi.org/10.1016/j.promfg.2020.08.052">10.1016/j.promfg.2020.08.052</a>.
  short: C.-M. Kuball, B. Uhe, G. Meschut, M. Merklein, eds., Process Design for the
    Forming of Semi-Tubular Self-Piercing Rivets Made of High Nitrogen Steel, 2020.
date_created: 2020-10-12T08:30:08Z
date_updated: 2026-02-27T10:43:48Z
department:
- _id: '157'
doi: 10.1016/j.promfg.2020.08.052
editor:
- first_name: Clara-Maria
  full_name: Kuball, Clara-Maria
  last_name: Kuball
- first_name: Benedikt
  full_name: Uhe, Benedikt
  id: '38131'
  last_name: Uhe
- first_name: Gerson
  full_name: Meschut, Gerson
  id: '32056'
  last_name: Meschut
  orcid: 0000-0002-2763-1246
- first_name: Marion
  full_name: Merklein, Marion
  last_name: Merklein
intvolume: '        50'
keyword:
- high nitrogen steel
- self-piercing riveting
- joining by forming
- bulk forming
- tool design
language:
- iso: eng
page: 280-285
publication_status: published
quality_controlled: '1'
series_title: Procedia Manufacturing
status: public
title: Process design for the forming of semi-tubular self-piercing rivets made of
  high nitrogen steel
type: conference_editor
user_id: '53912'
volume: 50
year: '2020'
...
---
_id: '19973'
abstract:
- lang: eng
  text: As a result of lightweight design, increased use is being made of high-strength
    steel and aluminium in car bodies. Self-piercing riveting is an established technique
    for joining these materials. The dissimilar properties of the two materials have
    led to a number of different rivet geometries in the past. Each rivet geometry
    fulfils the requirements of the materials within a limited range. In the present
    investigation, an improved rivet geometry is developed, which permits the reliable
    joining of two material combinations that could only be joined by two different
    rivet geometries up until now. Material combination 1 consists of high-strength
    steel on both sides, while material combination 2 comprises aluminium on the punch
    side and high-strength steel on the die side. The material flow and the stress
    and strain conditions prevailing during the joining process are analysed by means
    of numerical simulation. The rivet geometry is then improved step-by-step on the
    basis of this analysis. Finally, the improved rivet geometry is manufactured and
    the findings of the investigation are verified in experimental joining tests.
article_type: original
author:
- first_name: Benedikt
  full_name: Uhe, Benedikt
  id: '38131'
  last_name: Uhe
- first_name: Clara-Maria
  full_name: Kuball, Clara-Maria
  last_name: Kuball
- first_name: Marion
  full_name: Merklein, Marion
  last_name: Merklein
- first_name: Gerson
  full_name: Meschut, Gerson
  id: '32056'
  last_name: Meschut
  orcid: 0000-0002-2763-1246
citation:
  ama: Uhe B, Kuball C-M, Merklein M, Meschut G. Improvement of a rivet geometry for
    the self-piercing riveting of high-strength steel and multi-material joints. <i>Production
    Engineering</i>. 2020;14:417-423. doi:<a href="https://doi.org/10.1007/s11740-020-00973-w">10.1007/s11740-020-00973-w</a>
  apa: Uhe, B., Kuball, C.-M., Merklein, M., &#38; Meschut, G. (2020). Improvement
    of a rivet geometry for the self-piercing riveting of high-strength steel and
    multi-material joints. <i>Production Engineering</i>, <i>14</i>, 417–423. <a href="https://doi.org/10.1007/s11740-020-00973-w">https://doi.org/10.1007/s11740-020-00973-w</a>
  bibtex: '@article{Uhe_Kuball_Merklein_Meschut_2020, title={Improvement of a rivet
    geometry for the self-piercing riveting of high-strength steel and multi-material
    joints}, volume={14}, DOI={<a href="https://doi.org/10.1007/s11740-020-00973-w">10.1007/s11740-020-00973-w</a>},
    journal={Production Engineering}, author={Uhe, Benedikt and Kuball, Clara-Maria
    and Merklein, Marion and Meschut, Gerson}, year={2020}, pages={417–423} }'
  chicago: 'Uhe, Benedikt, Clara-Maria Kuball, Marion Merklein, and Gerson Meschut.
    “Improvement of a Rivet Geometry for the Self-Piercing Riveting of High-Strength
    Steel and Multi-Material Joints.” <i>Production Engineering</i> 14 (2020): 417–23.
    <a href="https://doi.org/10.1007/s11740-020-00973-w">https://doi.org/10.1007/s11740-020-00973-w</a>.'
  ieee: 'B. Uhe, C.-M. Kuball, M. Merklein, and G. Meschut, “Improvement of a rivet
    geometry for the self-piercing riveting of high-strength steel and multi-material
    joints,” <i>Production Engineering</i>, vol. 14, pp. 417–423, 2020, doi: <a href="https://doi.org/10.1007/s11740-020-00973-w">10.1007/s11740-020-00973-w</a>.'
  mla: Uhe, Benedikt, et al. “Improvement of a Rivet Geometry for the Self-Piercing
    Riveting of High-Strength Steel and Multi-Material Joints.” <i>Production Engineering</i>,
    vol. 14, 2020, pp. 417–23, doi:<a href="https://doi.org/10.1007/s11740-020-00973-w">10.1007/s11740-020-00973-w</a>.
  short: B. Uhe, C.-M. Kuball, M. Merklein, G. Meschut, Production Engineering 14
    (2020) 417–423.
date_created: 2020-10-12T08:14:13Z
date_updated: 2026-02-27T10:41:55Z
department:
- _id: '157'
doi: 10.1007/s11740-020-00973-w
intvolume: '        14'
keyword:
- Self-piercing riveting
- Joining technology
- Rivet geometry
- Multi-material design
- High-strength steel
- Aluminium
language:
- iso: eng
page: 417-423
publication: Production Engineering
publication_status: published
quality_controlled: '1'
status: public
title: Improvement of a rivet geometry for the self-piercing riveting of high-strength
  steel and multi-material joints
type: journal_article
user_id: '53912'
volume: 14
year: '2020'
...
---
_id: '19974'
abstract:
- lang: eng
  text: Due to the trend towards lightweight design in car body development mechanical
    joining technologies become increasingly important. These techniques allow for
    the joining of dissimilar materials and thus enable multi-material design, while
    thermic joining methods reach their limits. Semi-tubular self-piercing riveting
    is an important mechanical joining technology. The rivet production, however,
    is costly and time-consuming, as the process consists of several process steps
    including the heat treatment and coating of the rivets in order to achieve an
    adequate strength and corrosion resistance. The use of high nitrogen steel as
    rivet material leads to the possibility of reducing process steps and hence increasing
    the efficiency of the process. However, the high tool loads being expected due
    to the high strain hardening of the material are a major challenge during the
    rivet production. Thus, there is a need for appropriate forming strategies, such
    as the manufacturing of the rivets at elevated temperatures. Prior investigations
    led to the conclusion that forming already at 200 °C results in a distinct reduction
    of the yield strength. To create a deeper understanding of the forming behaviour
    of high nitrogen steel at elevated temperatures, compression tests were conducted
    in a temperature range between room temperature and 200 °C. The determined true
    stress – true strain curves are the basis for the further process and tool design
    of the rivet production. Another key factor for the rivet manufacturing at elevated
    temperatures is the influence of the process temperature on the tribological conditions.
    For this reason, ring compression tests at room temperature and 200 °C are carried
    out. The friction factors are determined on the basis of calibration curves resulting
    from the numerical analysis of the ring compression process. The investigations
    indicate that the friction factor at 200 °C is significantly higher compared to
    room temperature. This essential fact has to be taken into account for the process
    and tool design for the rivet production using high nitrogen steel.
article_number: '100023'
citation:
  ama: Kuball C-M, Jung R, Uhe B, Meschut G, Merklein M, eds. <i>Influence of the
    Process Temperature on the Forming Behaviour and the Friction during Bulk Forming
    of High Nitrogen Steel</i>. Vol 1.; 2020. doi:<a href="https://doi.org/10.1016/j.jajp.2020.100023">10.1016/j.jajp.2020.100023</a>
  apa: Kuball, C.-M., Jung, R., Uhe, B., Meschut, G., &#38; Merklein, M. (Eds.). (2020).
    <i>Influence of the process temperature on the forming behaviour and the friction
    during bulk forming of high nitrogen steel</i> (No. 100023; Vol. 1). <a href="https://doi.org/10.1016/j.jajp.2020.100023">https://doi.org/10.1016/j.jajp.2020.100023</a>
  bibtex: '@book{Kuball_Jung_Uhe_Meschut_Merklein_2020, series={Journal of Advanced
    Joining Processes}, title={Influence of the process temperature on the forming
    behaviour and the friction during bulk forming of high nitrogen steel}, volume={1},
    DOI={<a href="https://doi.org/10.1016/j.jajp.2020.100023">10.1016/j.jajp.2020.100023</a>},
    number={100023}, year={2020}, collection={Journal of Advanced Joining Processes}
    }'
  chicago: Kuball, Clara-Maria, R Jung, Benedikt Uhe, Gerson Meschut, and Marion Merklein,
    eds. <i>Influence of the Process Temperature on the Forming Behaviour and the
    Friction during Bulk Forming of High Nitrogen Steel</i>. Vol. 1. Journal of Advanced
    Joining Processes, 2020. <a href="https://doi.org/10.1016/j.jajp.2020.100023">https://doi.org/10.1016/j.jajp.2020.100023</a>.
  ieee: C.-M. Kuball, R. Jung, B. Uhe, G. Meschut, and M. Merklein, Eds., <i>Influence
    of the process temperature on the forming behaviour and the friction during bulk
    forming of high nitrogen steel</i>, vol. 1. 2020.
  mla: Kuball, Clara-Maria, et al., editors. <i>Influence of the Process Temperature
    on the Forming Behaviour and the Friction during Bulk Forming of High Nitrogen
    Steel</i>. 100023, 2020, doi:<a href="https://doi.org/10.1016/j.jajp.2020.100023">10.1016/j.jajp.2020.100023</a>.
  short: C.-M. Kuball, R. Jung, B. Uhe, G. Meschut, M. Merklein, eds., Influence of
    the Process Temperature on the Forming Behaviour and the Friction during Bulk
    Forming of High Nitrogen Steel, 2020.
date_created: 2020-10-12T08:23:27Z
date_updated: 2026-02-27T10:45:08Z
department:
- _id: '157'
doi: 10.1016/j.jajp.2020.100023
editor:
- first_name: Clara-Maria
  full_name: Kuball, Clara-Maria
  last_name: Kuball
- first_name: R
  full_name: Jung, R
  last_name: Jung
- first_name: Benedikt
  full_name: Uhe, Benedikt
  id: '38131'
  last_name: Uhe
- first_name: Gerson
  full_name: Meschut, Gerson
  id: '32056'
  last_name: Meschut
  orcid: 0000-0002-2763-1246
- first_name: Marion
  full_name: Merklein, Marion
  last_name: Merklein
intvolume: '         1'
keyword:
- High nitrogen steel
- Self-piercing riveting
- Joining by forming
- Bulk forming
- Strain hardening
language:
- iso: eng
publication_status: published
quality_controlled: '1'
series_title: Journal of Advanced Joining Processes
status: public
title: Influence of the process temperature on the forming behaviour and the friction
  during bulk forming of high nitrogen steel
type: conference_editor
user_id: '53912'
volume: 1
year: '2020'
...
---
_id: '34441'
abstract:
- lang: eng
  text: The state of the art industrial manufacturing process to produce shafts as
    counter surfaces for radial shaft seal rings is plunge grinding. This process
    consists of three major steps. The blank is turned to a slight diameter-oversize
    followed by the heat treatment and the hard-finishing by plunge grinding. The
    geometric surface structures of the resulting shafts in general exhibit a stochastic
    distribution. These surface characteristics contribute to a reliable and stable
    sealing functionality. And the surface and subsurface hardness generally leads
    to a higher wear resistance of the shaft. Motivated by economic benefits and in
    order to achieve a compact production process for at least ten years, turning
    is investigated as an alternative manufacturing process. However due to the resulting
    lead structure on the shaft surface and the associated risk of leakage it has
    not become prevalent yet. In this paper turned shafts of the metastable austenitic
    steel AISI 347 (1.4550, X6CrNiNb1810) are investigated as alternative material
    for counter surfaces of radial shaft seal rings and compared to turned shafts
    of carburized AISI 5115 (1.7131, 16MnCr5). In addition to surfaces dry turned
    at room-temperature, cryogenic turned AISI 347 counter surfaces are analyzed.
    By applying cryogenic cooling, the formation of deformation-induced α′-martensite
    in the surface layer is possible during the turning process. Endurance tests in
    radial shaft seal ring test rigs are performed and complemented with detailed
    investigations of microstructure, micro-hardness and surface topography. The results
    are compared to results of state of the art ground AISI 5115 shafts.
author:
- first_name: D.
  full_name: Frölich, D.
  last_name: Frölich
- first_name: Balázs
  full_name: Magyar, Balázs
  id: '97759'
  last_name: Magyar
- first_name: B.
  full_name: Sauer, B.
  last_name: Sauer
- first_name: P.
  full_name: Mayer, P.
  last_name: Mayer
- first_name: B.
  full_name: Kirsch, B.
  last_name: Kirsch
- first_name: J.C.
  full_name: Aurich, J.C.
  last_name: Aurich
- first_name: R.
  full_name: Skorupski, R.
  last_name: Skorupski
- first_name: M.
  full_name: Smaga, M.
  last_name: Smaga
- first_name: T.
  full_name: Beck, T.
  last_name: Beck
- first_name: D.
  full_name: Eifler, D.
  last_name: Eifler
citation:
  ama: Frölich D, Magyar B, Sauer B, et al. Investigation of wear resistance of dry
    and cryogenic turned metastable austenitic steel shafts and dry turned and ground
    carburized steel shafts in the radial shaft seal ring system. <i>Wear</i>. 2015;328-329:123-131.
    doi:<a href="https://doi.org/10.1016/j.wear.2015.02.004">https://doi.org/10.1016/j.wear.2015.02.004</a>
  apa: Frölich, D., Magyar, B., Sauer, B., Mayer, P., Kirsch, B., Aurich, J. C., Skorupski,
    R., Smaga, M., Beck, T., &#38; Eifler, D. (2015). Investigation of wear resistance
    of dry and cryogenic turned metastable austenitic steel shafts and dry turned
    and ground carburized steel shafts in the radial shaft seal ring system. <i>Wear</i>,
    <i>328–329</i>, 123–131. <a href="https://doi.org/10.1016/j.wear.2015.02.004">https://doi.org/10.1016/j.wear.2015.02.004</a>
  bibtex: '@article{Frölich_Magyar_Sauer_Mayer_Kirsch_Aurich_Skorupski_Smaga_Beck_Eifler_2015,
    title={Investigation of wear resistance of dry and cryogenic turned metastable
    austenitic steel shafts and dry turned and ground carburized steel shafts in the
    radial shaft seal ring system}, volume={328–329}, DOI={<a href="https://doi.org/10.1016/j.wear.2015.02.004">https://doi.org/10.1016/j.wear.2015.02.004</a>},
    journal={Wear}, author={Frölich, D. and Magyar, Balázs and Sauer, B. and Mayer,
    P. and Kirsch, B. and Aurich, J.C. and Skorupski, R. and Smaga, M. and Beck, T.
    and Eifler, D.}, year={2015}, pages={123–131} }'
  chicago: 'Frölich, D., Balázs Magyar, B. Sauer, P. Mayer, B. Kirsch, J.C. Aurich,
    R. Skorupski, M. Smaga, T. Beck, and D. Eifler. “Investigation of Wear Resistance
    of Dry and Cryogenic Turned Metastable Austenitic Steel Shafts and Dry Turned
    and Ground Carburized Steel Shafts in the Radial Shaft Seal Ring System.” <i>Wear</i>
    328–329 (2015): 123–31. <a href="https://doi.org/10.1016/j.wear.2015.02.004">https://doi.org/10.1016/j.wear.2015.02.004</a>.'
  ieee: 'D. Frölich <i>et al.</i>, “Investigation of wear resistance of dry and cryogenic
    turned metastable austenitic steel shafts and dry turned and ground carburized
    steel shafts in the radial shaft seal ring system,” <i>Wear</i>, vol. 328–329,
    pp. 123–131, 2015, doi: <a href="https://doi.org/10.1016/j.wear.2015.02.004">https://doi.org/10.1016/j.wear.2015.02.004</a>.'
  mla: Frölich, D., et al. “Investigation of Wear Resistance of Dry and Cryogenic
    Turned Metastable Austenitic Steel Shafts and Dry Turned and Ground Carburized
    Steel Shafts in the Radial Shaft Seal Ring System.” <i>Wear</i>, vol. 328–329,
    2015, pp. 123–31, doi:<a href="https://doi.org/10.1016/j.wear.2015.02.004">https://doi.org/10.1016/j.wear.2015.02.004</a>.
  short: D. Frölich, B. Magyar, B. Sauer, P. Mayer, B. Kirsch, J.C. Aurich, R. Skorupski,
    M. Smaga, T. Beck, D. Eifler, Wear 328–329 (2015) 123–131.
date_created: 2022-12-15T10:17:23Z
date_updated: 2022-12-15T10:18:54Z
department:
- _id: '146'
doi: https://doi.org/10.1016/j.wear.2015.02.004
extern: '1'
keyword:
- Radial shaft seal ring
- Shaft surface
- Cryogenic turning
- Metastable austenitic steel
- Deformation-induced martensite formation
language:
- iso: eng
page: 123-131
publication: Wear
publication_identifier:
  issn:
  - 0043-1648
status: public
title: Investigation of wear resistance of dry and cryogenic turned metastable austenitic
  steel shafts and dry turned and ground carburized steel shafts in the radial shaft
  seal ring system
type: journal_article
user_id: '38077'
volume: 328-329
year: '2015'
...
