THE INTERNATIONAL ACADEMY FOR PRODUCTION ENGINEERING

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STC F - 2015 Annual Report

The Scientific Technical Committee “F” had two meetings in 2015: in Paris on February 19th and in Cape Town on August 28th. The STC meeting in February had 44 participants of whom 14 were guests, and the meeting in August had 36, of which 15 were guests.

Summary of the STC Meeting in Paris on February 19th

Reports

Short reports related to the following activities were given:
• ICTP - The 11th International Conference on Technology of Plasticity (2014) (reported by Prof. Mori)
- The 12th International Conference on Technology of Plasticity (2017) (reported by Prof. Allwood)
• ICFG - The 47th Plenary Meeting of the International Cold Forging Group (reported by Prof. Tekkaya)
• IDDRG - The IDDRG 2015 (International Deep Drawing Research Group) (reported by Prof. Merklein)
• I2FG - The 2014 meeting of the I2FG (International Impulse Forming Group) (reported. by Prof. Tekkaya)
Summaries of the reports can be found in the minutes of the meeting, which are available on the CIRP website.

CIRP Dictionary / CIRPEDIA

The revision of the Forming Dictionary Volumes had been sent to Springer-Verlag and a first printed version was presented during the meeting. Proof reading took unexpectedly much time due to the numerous setting errors and was continuing. Therefore, the final printing of the volumes was delayed but hoped to be completed in the next weeks. (report by Dr. Chatti)

The following contributions to CIRPEDIA had already been published:
o “Tailored Blanks” by Prof. Merklein
o “Flow Forming” by Prof. Groche
o “Rolling” by Prof. Hirt
o “Billet Shearing” by Prof. B.-A. Behrens
o “Cross Wedge Rolling” by Prof. B.-A. Behrens
o “Forge Rolling” by Prof. B.-A. Behrens
o “Hot Stamping” by Prof. B.-A. Behrens
o “Powder metallurgy” by Prof. Jeswiet is in preparation.

The following new topics have been assigned as follows:
o “Mechanical Joining” to Prof. Landgrebe
o “Sheet Bulk Forming” to Prof. Merklein
o “Cutting of Blanks” to Prof. Volk
o “Friction” to Prof. Ghiotti

Keynote Papers

An almost final version of the paper and the proposed presentation for the 2015 keynote paper, “Predicting and controlling product properties in metal forming processes” by Professors Tekkaya, Allwood, Bariani, Bruschi, Cao, Gramlich, Groche, Hirt, Ishikawa, Merklein, Misiolek, Pietrzyk, Shivpuril, Yanagimoto were introduced by Prof. Tekkaya and then discussed in further detail.

Progress report and discussion on the 2015 keynote paper “Closed loop control of product properties in metal forming” led by Professor Allwood. Professor Allwood presented a comprehensive slide pack summarizing the key evidence and themes of the paper. The discussion concentrated on the chapters four to seven as intended by the key questions set out for this meeting.

A special session was held on the topic of the 2017 internal session keynote paper on “Hot stamping” – led by Prof. Mori. A list of these presentations is given below.

Presentations on the subjects related to the 2017 Keynote Paper

1. T. Svec, M. Merklein: Hot stamping of alternative steel grades and adjustable mechanical properties
2. J. Yanagimoto, K. Ikeuchi: Valuation method for effects of hot stamping process parameters using hot forming simulator
3. B.-A. Behrens: Tailored tempering by means of conductive heating
4. D. Landgrebe, F. Schieck, A. Sterzing: Alternative heating strategies in hot forming – Potentials for function – oriented part design
5. K. Mori, T. Maeno: Progressive die hot stamping of gear part using partial resistance heating
6. A. Ghiotti, S. Bruschi, F. Michieletto, P.F. Bariani: Temperature-supported gas forming for the production of complex-shaped aluminium alloy tubes
7. S. Bruschi, A. Ghiotti, B. Valoppi, P.F. Bariani: Hot ductility of titanium alloy sheets thermo-electro-chemically modified to improve osseo-integration and bioactivity for biomedical applications
8. Ł. Madej: Modelling of microstructure evolution during the phase transformation on the basis of cellular automata method

Summary of the STC Meeting in Cape Town on August 28th

Reports

Short reports related to the following activities were given:
• ICTP - The 12th International Conference on Technology of Plasticity (2017) (reported by Prof. Allwood)
• ICFG - The 2015 Meeting of the International Cold Forging Group (reported by Prof. Tekkaya)
• IDDRG - The IDDRG 2015 and 2016 meetings and conferences of the International Deep Drawing Research Group (prepared by Prof. Merklein)
• I2FG - The 2015 meeting of the International Impulse Forming Group and the 2016 International Conference on High Speed Forming. (reported by Prof. Tekkaya)

Summaries of the reports can be found in the minutes of the meeting, which are available on the CIRP website.

CIRP Dictionary / CIRPEDIA

CIRP Dictionary: Vol. I/1 and Vol. I/2 “Forming”: The last correction for German, English and French was send in August 2015 to Springer. An online version of the dictionaries will be realized by Springer.
Italian translation: The translations have been finished. The source data was sent to Springer. Springer agreed on performing production of the Italian dictionaries based on the existing data.
Turkish translation: The translations for forming dictionary have been carried out to 100%. The source data will be sent at the end of this year to Springer. (Dr. Chatti)

CIRPedia: The following contributions have already been published:
o Billet shearing - Bernd-Arno Behrens
o Cross Wedge Rolling - Bernd-Arno Behrens
o Forge rolling - Bernd-Arno Behrens
o Hot Stamping - Bernd-Arno Behrens
o Rolling - Gerhard Hirt
o Tailored Blanks - Marion Merklein
o Anisotropy - Alexander Brosius, Dorel Banabic
o Bar Extrusion - Erman A. Tekkaya, Sami Chatti
o Bending (Sheets) - Joost Duflou
o Bending (Tubes, Profiles) - Erman A. Tekkaya, Sami Chatti
o Cold Forging - Marion Merklein
o Deep Drawing - Mathias Liewald
o Deformation (Dislocations) - Jun Yanagimoto
o Drawing (Wire, Tube) - Luigino Filice
o Flow Stress, Flow Curve - Alan Bramley
o Formability (Damage) - Dorel Banabic
o Forming Tools (Die, Punch,…) - Mathias Liewald
o Hot Forging - Alan Bramley
o Hydroforming (Sheets @ Tubes) - Elisabetta Ceretti, Antonio Fiorentino, Claudio Giardini
o Incremental Forming - Alexander Brosius
o Metal Spinning Julian Allwood, James A. Polyblank
o Roll Forming - Konstantinos Salonitis, John Paralikas,George Chryssolouris
o Shear Forming - Omer Music
o Springback - Z. Cedric Xia, Jian Cao
o Stress, Strain - Alan Bramley
o Stretching - Andreas Sterzing
o Yield Criteria - Alan Bramley

These contributions are in review:
o Flow Forming - Peter Groche (in revision)
o Friction - Andrea Ghiotti
o Shear Cutting - Wolfram Volk, Jens Stahl
o Sheet-Bulk Metal Forming - Marion Merklein
o Residual Stress - Jun Yanagimoto

These contributions are in production:
o FE Analysis - Bernd-Arno Behrens
o Mechanical Joining -  Dirk Landgrebe
o Powder metallurgy - Jack Jeswiet
(reported and coordinated by Prof. Behrens)

Keynote Papers

The following potential cross-STC Keynotes were presented and discussed:
• “Advanced Manufacturing for Enhancing the Performance and Functionality of Tooling for Metal Forming” (presented by Jian Cao)
• “Multidisciplinary, technology independent material characterization” (presented by Alexander Brosius)
• “Multi-scale modelling of production processes” (presented by Lukasz Madeji)

Discusssions on scheduled Keynote papers:
• Discussion of the draft of the 2016 keynote paper “Closed loop control of product properties in metal forming” led by Prof. Allwood: The discussion was based on an almost final draft version of this paper which was distributed before the meeting. (reported by Prof. Allwood)
• Progress report and discussion on the 2017 Keynote paper on “Hot stamping” by Prof. Mori.
The presentation was based on a preliminary draft version of this paper. (reported by Prof. Mori)

Presentation and discussion of possible themes for 2018 Keynote:
• “Flexibility in Forming (for customized products)” (reported by Prof. Yang)
• “Forming of Less-Familiar Materials” (reported by Prof. Bruschi)
• “Advanced Test Methods for Material Characterization in Metal Forming” (reported. by Prof. Volk)

Presentations

15 papers were presented in Part I of the General Assembly in Cape Town.

The following short presentations were given in the concluding paper session of Part II:

1. M. Merklein, J. Steiner*, T. Häfner, R. Zhao, S. Tremmel, M. Schmidt: Investigation of surface modifications for dry sheet metal forming
2. N. Ben Khalifa*, G. Grzancic, C. Becker: Incremental profile forming – flexible manufacturing of complex tubes and profiles
3. M. Tulke, J. Watzke, M. Schomäcker, A. Brosius: Forming of hybrid materials for lightweight design
4. E. Lee, D.Y. Yang: Some development of infrared local heating processes for forming of hard-to-form materials
5. Guk, A. Kunke, V. Kräusel*, D. Landgrebe: Influence of the heating method on the flow properties of steel in roll forming with integrated heat treatment
6. R. Shivpuri: Deformation and fracture of inclusions and voids in hot rolling and forging: multibody modeling approach
7. K. Muszka*, L. Madej, B.P. Wynne: Development of a comprehensive methodology for determination of the through scale rheological properties during hot working of Ti alloys for aerospace applications
8. B.A. Behrens: Mechatronic systems in forming technology