Video Article Open Access

Tailoring materials properties for flexibilisation of manufacturing processes and process chains

Marion Merklein*, Julia Degner, Manfred Vogel, Niko Rigas, Matthias Graser

Institute of Manufacturing Technology, Friedrich-Alexander-University Erlangen-Nürnberg Egerlandstr. 13,91058 Erlangen, Germany

Vid. Proc. Adv. Mater., Volume 1, Article ID 2020-0842 (2020)

DOI: 10.5185/vpoam.2020.0842

Publication Date (Web): 16 Feb 2021

Copyright © IAAM


Abstract


Global trends towards CO2 reduction and resource efficiency have significantly increased the importance of lightweight design in modern car body manufacturing and manufacturing processes in general. Therefore, especially the implementation of high strength steels and modern lightweight materials such as aluminum alloys gained importance in recent years. Because the formability of these materials is poor, conventional processes reach their limits. In addition, automotive manufacturers are facing new problems due to rising decentralized production with regional distinctions, increasing number of vehicle-derivates and ever-shorter production cycles. As a consequence, the flexibility and adaptability of production processes will be the key asset for competitiveness in the automotive industry. This implies not only, for example, the manufacturing of high-strength components, such as a B-pillar, by a warm forming process instead of a conventional cold forming operation in order to enhance the forming limits. In fact, the core idea is a comprehensive analysis of the whole production chain, taking into account all steps of it and adapt material and process characteristics according to it. One approach is the modification of the material’s properties for subsequent forming and joining processes as well as to meet required in-service behavior of the parts, the so-called tailoring. Tailored blanks enable a flexibilisation of the manufacturing process by locally changing the mechanical properties in order to enhance the forming limits or to adjust the properties for the specific application. Within this contribution, different methods for tailoring the material properties are presented and their potential for achieving versatility in modern manufacturing technology will be discussed.

Biography


EDUCATION

26/07/2006    Habilitation (Dr.-Ing. habil.) with Venia Legendi in production technology Faculty of Engineering / Friedrich-Alexander-University Erlangen-Nürnberg / Institute of Manufacturing Technology (LFT) / Germany “Characterisation of Sheet Metals for Light Weight Constructions”

28/05/2001     PhD of Mechanical Engineering Faculty of Engineering / Friedrich-Alexander-University Erlangen-Nürnberg / Institute of Manufacturing Technology (LFT) / Germany“Laser forming of aluminium alloys - influencing of microstructure and mechanical properties”

25/09/1997     Diploma in Material Science Faculty of Engineering / Friedrich-Alexander-University Erlangen-Nürnberg / Germany “Cyclic work hardening and fatigue behaviour of metals at temperatures between -100 °C and +150 °C”

AFFILIATIONS

Since 2008      Professor of Manufacturing Technology (W3)

      Faculty of Engineering / Maschinenbau / Friedrich-Alexander-University Erlangen-Nürnberg / Institute of Manufacturing Technology (LFT) / Germany

2001 – 2008    Senior manager for sheet metal forming

      Faculty of Engineering / Friedrich-Alexander-University Erlangen-Nürnberg /

      Institute of Manufacturing Technology / Germany

INSTITUTIONAL RESPONSIBILITIES

2017 - 2019    Head of Department Mechanical Engineering

      Faculty of Engineering / Friedrich-Alexander-University Erlangen-Nürnberg /

2011 - 2015    Dean

      Faculty of Engineering / Friedrich-Alexander-University Erlangen-Nürnberg /

2010 – 2011    Vice-Dean

      Faculty of Engineering / Friedrich-Alexander-University Erlangen-Nürnberg /

AWARDS

2018    Bayerischer Verdienstorden

2017    25-Frauen-Award of Edition F

2013    Gottfried Wilhelm Leibniz Award from the DFG / Germany

2009    SAE/AISI Sydney H. Melbourne Award for Excellence in the Advancement of Automotive Sheet Steel / USA

2007    Otto-Kienzle Medal of the German Academic Society for Production Engineering (WGP) / Germany

2006    Ring of Honor received from the German Society of Engineers (VDI) / Germany

2004    Heinz-Maier-Leibnitz Award received from the German Research Society (DFG) / Germany

2002    Dissertation Award received from Faculty of Engineering of FAU / Germany

LECTURE

Since 2008      Professor – Production technology and Forming technology

2011, 2015      Coordination of SMART Summer School

ORGANISATION OF SCIENTIFIC COLLABORATIONS

Since 2019      Coordinator of the Transregional collaborative research center on mechanical joining (TR285)

Since 2009      Coordinator of the Transregional collaborative research center on sheet-bulk metal forming (TR73)

2006-2011      Coordinator of the research group DFG FOR552 on fundamentals of hot stamping /

ORGANISATION OF INTERNATIONAL CONFERENCES

Since 2008      Workshop Hot stamping

2015    SheMet

2013 - 2014    WGP Congress

2013    Esaform

COMMISSIONS OF TRUST

Member of editorial board

Since 2012      Journal of Materials Processing and Technology

Since 2012      Production Engineering - Research and Development

Since 2014      Editor of Journal Production Engineering - Research and Development

Since 2018      Associate Editor of Journal of Materials Processing Technology

MEMBERSHIPS OF SCIENTIFIC SOCIETIES

Since 2019      Senator, German Research Foundation (DFG)

Since 2015      Fellow, CIRP International Academy for Production Engineering (CIRP)

2009 - 2015    Associate Member, International Academy for Production Engineering (CIRP)

Since 2015      Member of acatech, BBAW and Leopoldina

Since 2012      Member, German Academic Society for Production Engineering (WGP)

2001 – 2010    Member, DFG Collaborative Research Center (SFB) 396

Since 2008      Elected Member, German Forming Society (AGU)

Since 2001      Applicant of grants, German Research Foundation (DFG)

INTERNATIONAL COLLABORATIONS

Different universities worldwide, e.g. TU Graz, IIT India, University of Stockholm, University of Deakin, University of Palermo and others within CIRP

PATENTS

7 patents          

PUBLICATIONS

Publication Summary

Total Citations from Database Scopus: 4711

H index from SCOPUS lists: 30

Total number of publications within SCOPUS: 451

Journal Guest Editor

Journal of Materials Processing Technology Special Issue 228 On Hot Stamping

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