Dr. Muammer Koç

Associate Professor, Department of Mechanical Engineering,
and Director of NSF I/UCRC Center for Precision Forming
E-mail:mkoc@vcu.edu
Phone: (804) 827-7029
Fax: (804) 827-7030

Address

401 W. Main Street, Room E3254
P.O. Box 843015
Richmond, Virginia 23284-3015

Education

Ph.D. Industrial and Systems Engineering, The Ohio State University, Columbus, Ohio, 1999
M.S. Mechanical Engineering, The Ohio State University, Columbus, Ohio, 1995
B.S. Middle East Technical University, 1991

Research topics

Manufacturing processes and systems
Product and process design
Micro/nano-manufacturing
Design and manufacturing of alternative energy devices (such as fuel cells) and medical devices
Design and manufacturing of nano/micro-scale functional surface structures
Deformation mechanics, tribology and process in material forming plasticity
CAE applications in design and manufacturing

Current projects

Thermo-mechanical fabrication of micro-scale porous surface structures for advanced heat/mass transfer applications – NSF, GOALI
Development of a novel fabrication process for fuel cell bipolar plates- combined hydroforming and in-die mechanical joining – NSF, SGER
Warm hydroforming of lightweight sheet materials using selective heating strategies- NSF, GOALI
Investigation of formability, friction and quality issues in fabrication of Advanced/Ultra High Strength Steel components- springback variation, die wear and material characterization, NSF, IUCRC CPF and member companies
Development of a friction test method and apparatus for high temperature forming of lightweight materials, NSF, IUCRC CPF and member companies
Rapid tool-less manufacturing processes and re-engineering for aging aircraft, DLA, LMI

Classes taught

ENGR 420 CAE Design
ENGR 421 CAE Analysis
EGRM 425 Introduction to Manufacturing Systems
EGRM 426 Manufacturing Processes
ENGR 402/403 Senior Design

Publications

M. Koç, T. Witulski, V. Vazquez, and T. Altan, (1996), “Application of the FEM to Predict Material Flow and Defects in the Semi-Solid Forging (SSF) of A356 Aluminum Alloys”. Journal of Materials Processing Technology, v. 59, pp.106-112.
M. Koç, T. Allen, S. Jirathearanat, and T. Altan, (2000), “Use of FEA and design of experiments to establish design guidelines for simple hydroformed part”, International Journal of Machine Tools and Manufacture, v.40, pp. 2249-2266.
M. Koç, and T. Altan, (2001), “An overall review of the tube hydroforming (THF) technology”, Journal of Materials Processing Technology, v.108, n.3, pp. 384-393.
M. Koç, Y. Aueulan, and T. Altan, (2001) “On the characteristics of tubular materials for hydroforming- experimentation and analysis”, International Journal of Machine Tools and Manufacture, v.41, n.5, pp.761-772.
M. Koç, and T. Altan, (2002), “Application of two-dimensional (2D) FEA for expansion of tubular parts and sections via hydroforming process”, Int’l Journal of Machine Tool and Manufacture, v.42, pp. 1285-1295.
M. Koç, and T. Altan, (2002), “Prediction of process limits and parameters in the tube hydroforming process”. International Journal of Machine Tools and Manufacture, v.42, n.1, pp. 123-138.
M. Koç (2002) “Investigation of the effect of loading path and variation in material properties on robustness of the tube hydroforming process”. Journal of Materials Processing and Technology, v.113, pp. 276-281.
M. Koç and M. Arslan, (2003) “Innovative tooling considerations for precision forming- stress pins to prolong die life and improve dimensional tolerances of parts”, Journal of Materials Processing and Technology, v.142, pp. 773-785.
M. Koç, (2003) “Tribological issues in the tube hydroforming process- selection of a lubricant for robust process conditions for an automotive structural frame part”, ASME J. of Manufacturing Science and Engineering, v. 125, n. 3., pp. 484-492.
M. Koç and J. Lee, (2003), “e-Mfg- fundamentals, requirements and expected impacts”, Int’l J. of Advanced Manufacturing Systems, v.6, n.1, pp. 29.
J. Yan, M. Koç, J. Lee, (2004), “Predictive algorithm for machine degradation detection using logistic regression”, Int’l Journal of Production Planning and Control, Vol. 15, No. 8, pp. 796–801.
H. Kim, M. Koç, J. Ni, (2004), “Determination of appropriate temperature distribution for warm forming of aluminum alloys”, Transactions of the SME NAMRI 32, v.32, pp. 573-580.
M. Koç (2004), “Advances in tube hydroforming- an enabling technology for low-mass vehicle manufacturing: material, lubrication, loading, simulation issues, and alternatives”, Tsinghua Science and Technology, v. 9, n.5, pp. 527-545.
S. J. Swillo, S. J. Hu, K. Iyer, J. Yao, M. Koç, W. Cai, (2005), “Surface Crack Detection and Characterization in Sheet Metal Hemming with Optical Method”, Transactions of the SME NAMRI 33, v.33.
P. Chen and M. Koç, (2005), “Parametric Analysis of the Warm Forming of Aluminum Blanks with FEA and DOE”, accepted for publication in The Chinese Journal of Nonferrous Metals (English)
H. S. Kim, M. Koç, J. Ni, (2005), “FE analysis for warm forming of aluminum alloys- Validation and determination of a failure criterion”, accepted for publication in ASME J. Manuf. Sci. and Eng., Dec. Paper # MANU-04-1325.
H.S. Kim, M. Koç, J. Ni, (2005), “Determination of proper temperature distribution for warm forming of aluminum sheet materials”, accepted for publication in ASME J. Manuf. Sci. and Eng., Dec., Paper # MANU-04-1335.
M. Koç, J. Culp, T. Altan, (2006), “Prediction of residual stresses in quenched aluminum blocks and their reduction through cold working processes”, accepted for publication in J. Mat’l Proc. and Tech., Paper # MSH 1903.
H. Choi and M. Koç, (2005), “Design of a flexible gripper design based on inflatable materials”, accepted, International Journal of Machine Tools and Manufacture, Aug. 2005
Peng Chen and M. Koç, (2005), “Simulation of springback variation in forming of advanced high strength steels”, submitted to J. Mat’l Proc. Tech., May 2005.
G. Y. Kim, M. Koç, J. Ni, (2005), “Semi-solid material modeling and simulation investigation on micro/meso-scale channel formation process”, accepted with revisions, ASME J. Manuf. Sci. and Eng, Jan.
G. Y. Kim, M. Koç, J. Ni, (2005), “Modeling of the size effects on the behavior of materials in the micro-scale deformation processes”, submitted to ASME J. Manuf. Sci. and Eng, Jan., Sept. 2005, Paper # MANU-05-1237.
H. Choi, M. Koç, J. Ni (2005), “A methodology to determine optimal temperature distribution for warm hydroforming of Al and Mg sheet material alloys”, submitted to International Journal of Machine Tools and Manufacture, Sept.. 2005
H.S. Kim, M. Koç, J. Ni, (2005), “Development of an analytical model for warm deep drawing of aluminum alloys”, submitted to International Journal of Machine Tools and Manufacture, Aug. 2005
H.S. Kim, M. Koç, J. Ni, (2005), “Numerical investigations on the springback characteristics of Al alloys in warm forming”, submitted to J. Mat’l Proc. and Tech., Aug. 2005
H.S. Kim, M. Koç, J. Ni,, (2005), “Use of multi-fidelity optimization procedure for cost-effective and rapid determination of proper temperature conditions in large scale warm stamping cases”, submitted to J. Mat’l Proc. and Tech., Sept. 2005,
G. Lin, J. Hu, M. Koç and W. Cai, (2005), “A Computational Response Surface Study of Curved-surface-curved-edge Aluminum Hemming using Solid-to-shell Mapping “, submitted to ASME J. Manuf. Sci. and Engineering, Nov. 2005

Conference publications

P. Chen and M. Koç, (2005), “Parametric analysis for warm forming of aluminum blanks using 2D FEA and doe- effects of temperature distribution and friction”, Proceedings of TMS 2005, Febr. 10-15, 2005, San Francisco, CA, USA.
H. Choi and M. Koç, (2005), “Design, analysis and feasibility tests of a flexible gripper based on inflatable rubber pockets”, accepted for the 3rd Int’l CIRP Conf. on Reconfigurable Manufacturing, May 10-12, 2005, Ann Arbor, MI, USA.
H. Kim, M. Koç, J. Ni, (2004), “Design of optimal temperature distribution using FEA for warm forming of lightweight materials”, NUMIFORM 2004, Ohio State University, Columbus, Ohio, June 13-17, 2004.
G. Lin, M. Koç, S. J. Hu, W. Cai, (2004), “Three-dimensional numerical simulations of curved edge-curved surface hemming of aluminum alloy”, Proceedings of IMECE2004, 2004 ASME International Mechanical Engineering Congress and RD&D Expo November 13-19, 2004, Anaheim, California USA, IMECE2004-60705
J. Yan, M. Koç, J. Lee, (2003), “Predictive Algorithm for Machine Degradation Detection Using Logistic Regression”, Proceedings of MIM 2002: 5th International Conference on Managing Innovations in Manufacturing (MIM), Milwaukee, Wisconsin, USA, September 9-11, 2002
G. Tong, M. Koç, J. Lee, (2003), “System performance assessment based on control system criteria”, Proceedings of MIM 2002: 5th International Conference on Managing Innovations in Manufacturing (MIM), Milwaukee, Wisconsin, USA, September 9-11, 2002
M. Koç (2002), “Process Robustness in Tube Hydroforming- Investigation of Loading, Material and Lubrication Variation”, ASME ESDA 2002, July 6-10, 2002, Istanbul, Turkey
M. Koç and J. Lee (2002), “e-Manufacturing and e-Maintenance- Applications and Benefits”, Int’l Conference on Responsive Manufacturing (ICRM 2002), June 26-29, 2002, Gaziantep, Turkey
M. Koç and J. Lee (2001), “A System Framework for Next-Generation E-Maintenance System”, EcoDesign 2001, Second International Symposium on Environmentally Conscious Design and Inverse Manufacturing, December 11-15. 2001, Tokyo Big Sight, Tokyo, Japan
M. Koç, (2001), “SAE Paper-2001-01-3090-Use of FEA in Design of Part, Process and Tooling for Tube Hydroforming Technology, SAE, International Body Engineering Conference, October 16-18, 2001, Detroit, USA
Jay Lee, Ahad Ali and M. Koç, (2001), “e-Manufacturing- Its Elements and Impact”, Proceedings of the Annual Institute of Industrial Engineering (IIE) Conference, Advances in Production Session, May 21-23, 2001, Dallas, Texas, USA
T. Altan, M. Koç, Y. Aue-u-lan, K. Tibari, (1999), “Formability and Design Issues in Tube Hydroforming”. International Conference on Hydroforming, October 12-13, Fellbach-Stuttgart, Germany.
W. Thomas, V. Vazquez, M. Koç, T. Altan, (1999), “Simulation of Metal Forming Processes - Applications and Future Trends”. Proceedings of the 6th International Conference on Technology of Plasticity (ICTP). September 19-23. Nuremberg, Germany.

Books and chapters

M. Koç, J. Ni, J. Lee and P. Bandyopadyay, (2004), Chapter on Introduction to e-Manufacturing in the Industrial Information Technology Handbook, CRC Press, LLC, FL, USA, R. Zurawski (Editor).