In 2025, the Scientific Technical Committee on Machines (STC “M”) had two meetings. The first was in Paris, France on February 21st, 2025 during the Winter Meetings of CIRP. The second was held in Stockholm, Sweden on August 22nd, 2025, during the CIRP General Assembly.
STC “M” Meeting in Paris on February 21st, 2025
This meeting took place in-person, with 84 attendees. The distribution was: 28 Fellows (incl. Honorary Fellows and Emeritus Fellows), 22 Associate Members, 17 Corporate Members, 5 Research Affiliates, and 12 Guests.
The following technical contributions, progress for future keynotes were presented and discussed. Essays for CIRP’s upcoming publication, CIRP Novel Topics in Production Engineering (CNTPE), were also discussed.
Technical presentations
1. “Assistance system for efficient and reproducible set-up of machine tools”
by S. Ihlenfeldt (Fraunhofer Institute for Machine Tools and Forming Technology IWU, Germany)
2. “Intelligent process control of LPBF AM using thermo-mechanical models”
by C. Okwudire (University of Michigan, USA)
3. “Active vibration damping of machining robot”
by H. Buhl (Leibniz University of Hannover, Germany)
4. “Damping mode coupling and regenerative chatter in grooving with slender blades”
by M. Law (Indian Institute of Technology Kanpur, India)
5. “Domain Incremental Learning for adaptive modeling of machining processes in agile production scenarios”
by J. Fleischer (Karlsruhe Institute of Technology, Germany)
6. “Methods of tool wear estimation based on cutting force coefficients and virtual machining simulation”
by M. Sulitka (RCMT, Czech Republic)
7. “Milling force estimation by combining servo information of feed axis and vibration behavior of tool spindle”
by H. Yoshioka (University of Tokyo, Japan)
8. “Cutting force estimation from CNC controller data using ML”
by E. Budak (Sabanci University, Turkey)
Progress reports for future keynotes
1. Report on final version of the STC-M Keynote Paper 2025 “Fixtures and clamping systems in machining”
by H.-C. Möhring (Institute for Machine Tools, University of Stuttgart, Germany).
2. Progress Report on STC-M Keynote Paper 2026 “Digital twins for machine tools”
by A. Verl (Institute for Control Engineering of Machine Tools and Manufacturing Units, Univ. of Stuttgart, Germany).
3. Progress Report on STC-M Keynote Paper 2027 “Machining of metallic flexible parts”
by L.T. Tunc (UNC Charlotte, USA).
4. Progress Report on STC-M Keynote Paper 2028 “From reactive maintenance to prescriptive maintenance”
by S. Ihlenfeldt (Fraunhofer Institute for Machine Tools and Forming Technology IWU, Germany)
CIRP Novel Topics in Production Engineering (CNTPE)
1. Presentation about CNTPE to STC-M
by Y. Kakinuma (Keio University, Japan).
2. Update on CNTP essay “Energy efficient machining by green transformation”
by K. Mori (Kyoto University, Japan).
3. “Algorithms in CNC-kernels”
by A. Verl (University of Stuttgart, Germany)
CIRP sponsored conferences approved
UTIS International Congress on Machining, October 30 – November 2, 2025, Antalya, Turkey
STC “M” Meeting in Stockholm, Sweden, August 22nd, 2025
This meeting took place in-person, with 122 attendees. The distribution was: 32 Fellows (incl. Honorary Fellows and Emeritus Fellows), 26 Associate Members, 31 Corporate Members, 8 Research Affiliates, and 25 Guests.
The following technical contributions, progress for future keynotes were presented and discussed. Essays for CIRP’s upcoming publication, CIRP Novel Topics in Production Engineering (CNTPE), were also discussed.
Technical presentations
1. “Part distortion monitoring in additive manufacturing using machining”
by J. Karandikar (Oak Ridge National Laboratory, USA)
2. “Closed loop control in milling by sensory tool signals and federated learning approach”
by F. Bleicher (Technical University of Vienna, Austria)
3. “Force-sensitive retrofit solutions for process monitoring during grinding”
by H. Buhl (Leibniz University of Hannover, Germany)
4. “Vibro-impacts and chatter stability of an impact-damped tool”
by M. Law (Indian Institute of Technology Kanpur, India)
5. “Wireless excitation device for on-machine measurement of workpiece compliance”
by D. Kono (Kyoto University, Japan)
6. “Enhancing part-to-part feedrate optimization in CNC machining using data-driven cutting force constraints”
by C. Okwudire (University of Michigan, USA)
7. “Integrated digital modelling and surrogate optimization for robot-based manufacturing cells”
by P. Stavropoulos (University of Patras, Greece)
8. “Dynamic Digital Twin Based Evaluation of Surface Quality in High Speed Milling”
by C.-J. Kim (Korea Institute of Machinery & Materials, Korea)
Progress reports and proposal(s) for future keynotes
1. Progress report on STC-M Keynote Paper 2026 “Digital twins for machine tools”
by A. Verl (Institute for Control Engineering of Machine Tools and Manufacturing Units, Univ. of Stuttgart, Germany).
2. Progress report on STC-M Keynote Paper 2027 “Machining of thin-walled parts”
by T. Tunc (UNC Charlotte, USA).
3. Progress Report on STC-M Keynote Paper 2028 “From reactive maintenance to prescriptive maintenance”
by S. Ihlenfeldt (Fraunhofer IWU, Germany).
4. Proposal for STC-M Keynote Paper 2029 or 2030 (Working title) “Autonomous Machining”
by N. Irino (DMG MORI) and F. Bleicher (Technical University of Vienna, Austria)
5. Proposal for STC-M Keynote Paper 2029 or 2030 (Working title) “Trajectory generation for CNC machine tools”
by B. Sencer (Oregon State University, USA) and C. Okwudire (University of Michigan, USA)
CIRP Novel Topics in Production Engineering (CNTPE)
1. Presentation about CNTPE to STC-M
by Y. Kakinuma (Keio University, Japan).
2. Progress report on CNTPE essay “Energy efficient machining by green transformation”
by K. Mori (DMG MORI)
3. Progress report on CNTPE essay “Algorithms in CNC-kernels”
by A. Verl (Institute for Control Engineering of Machine Tools and Manufacturing Units, Univ. of Stuttgart, Germany)
4. Proposal for CNTPE essay “Vision-based static and dynamic measurements for machine tools”
by M. Law (Indian Institute of Technology Kanpur, India).
CIRP conferences approved
14th CIRP Global Web Conference (2026)
New Collaborative Working Group proposal
“Quantum Computing for Manufacturing” by S. Ihlenfeldt (Fraunhofer IWU, Germany).
Chairman: M. F. Zäh, Vice-Chairman: K. Erkorkmaz, Secretary: H.-C. Möhring