Peer-Reviewed Journal Publications

[J31] T. Özel, Y. Karpat*, and A. Srivastava, "Hard Turning with Variable Micro-Geometry PcBN Tools," Annals of the CIRP, accepted, February 2008, [IF:0.989]

[J30] A. Dhanorker* and T. Özel, "Meso/Micro Scale Milling for Micromanufacturing," International Journal of Mechatronics and Manufacturing Systems, accepted, Vol.1, No.1, 2008.

[J29] P. Arrazola and T. Özel, "Numerical modelling of 3-D hard turning using Arbitrary Eulerian Lagrangian finite element method," International Journal of Machining and Machinability of Materials, in press, Vol. 3. No. 3, 2008.

[J28] Y. Karpat* and T. Özel, "Process Simulations for 3-D Turning using Uniform and Variable Micro-Geometry PcBN Tools," International Journal of Machining and Machinability of Materials, in press, Vol. 3. No. 3, 2008.

[J27] Y. Karpat* and T. Özel, "Mechanics of High Speed Cutting with Curvilinear Edge Tools," International Journal of Machine Tools and Manufacture, Vol. 48,  2008, pp. 195-208. 

[J26] Y. Karpat* and T. Özel, “Analytical and Thermal Modeling of High-Speed Machining with Chamfered Tools,” ASME Journal of Manufacturing Science and Engineering, Vol. 130, Issue 1, February 2008 ranked #1 in the the Top 10 Most Downloaded Articles  in the months Dec2007-Jan2008.

[J25] Y. Karpat* and T. Özel, "3-D FEA of Hard Turning: Investigation of PCBN Cutting Tool Micro- Geometry Effects," Transactions of NAMRI/SME, Volume 35, in print,  2007.

[J24] T. Özel, A. E. Correia, and J. P. Davim, "Neural network process modelling for turning of steel parts using conventional and wiper Inserts," International Journal of Materials and Product Technology, in print, 2007.

[J23]  T. Özel and E. Zeren*, "Numerical Modeling of Meso-Scale Finish Machining with Finite Edge Radius Tools," International Journal of Machining and Machinability of Materials, Vol. 2, Nos. 3/4,  2007, pp.451-468. 

[J22] T. Özel, Y. Karpat*, L. Figueira and J. P. Davim, "Modelling of Surface Finish and Tool Wear in Turning of AISI D2 Steel Using Ceramic Wiper Inserts," Journal of Materials Processing Technology, Vol. 189, 2007, pp. 192-198.

[J21] T. Özel, Y. Karpat, "Identification of constitutive material model parameters for high-strain rate metal cutting conditions using evolutionary computational algorithms," International Journal of Materials and Manufacturing Processes, Vol. 22, 2007, pp. 659-667. 

[J20] T. Özel and E. Zeren*, " Finite Element Analysis of The Influence of Edge Roundness on The Stress and Temperature Fields Induced by High Speed Machining," International Journal of Advanced Manufacturing Technology, Vol. 35, No.3-4, November 2007, pp. 255-267. [View]

[J19] Y. Karpat* and T. Özel, " Multi-Objective Optimization For Turning Processes Using Neural Network Modeling And Dynamic-Neighborhood Particle Swarm Optimization," International Journal of Advanced Manufacturing Technology, Vol. 35, No.3-4, November 2007, pp. 234-247. [View] 

[J18] Y. Karpat* and T. Özel, “An Integrated Analytical Thermal Model for Orthogonal Cutting with Chamfered Tools,” Transactions of North American Manufacturing Research Institute, Vol. XXXIV, pp. 611-625, 2006.

[J17] Y. Karpat* and T. Özel, “Swarm-Intelligent Neural Network System (SINNS) Based Multi-Objective Optimization of Hard Turning,” Transactions of North American Manufacturing Research Institute, Vol. XXXIV, pp. 9-16, 2006.

[J16] Y. Karpat* and T. Özel, “Predictive Analytical and Thermal Modeling of Orthogonal Cutting Process. Part II: Effect of Tool Flank Wear on Tool Forces, Stresses and Temperature Distributions,” ASME Journal of Manufacturing Science and Engineering, Vol. 128, May 2006, pp. 445-453. [view]

[J15] Y. Karpat* and T. Özel, “Predictive Analytical and Thermal Modeling of Orthogonal Cutting Process. Part I: Predictions of Tool Forces, Stresses and Temperature Distributions,” ASME Journal of Manufacturing Science and Engineering, Vol.128, May 2006, pp. 435-444. [view]

[J14] T.  Özel, "Influence of Friction Models on Finite Element Simulations of Machining," International Journal of Machine Tools and Manufacture, Vol. 46, Issue 5, 2006, pp. 518-530. Ranked 4th in Top 25 Hottest Articles by ScienceDirect.com [view]

[J13]  T. Özel and E. Zeren*, "A Methodology to Determine Work Material Flow Stress and Tool-Chip Interfacial Friction Properties by Using Analysis of Machining,"  ASME Journal of Manufacturing Science and Engineering, Vol. 128, Feb. 2006, pp. 119-129. [view]

[J12] T. Özel, "Precision Tracking Control of A Horizontal Arm Coordinate Measuring Machine in Presence of Dynamic Flexibilities," International Journal of Advanced Manufacturing Technology, Vol. 27, No. 9-10, February 2006, pp. 960 - 968. [view]

[J11] Y. Karpat*, E.Zeren* and T. Özel, “Workpiece Material Model Based Predictions for Machining Processes,” Transactions of North American Manufacturing Research Institute, Vol. XXXIII, 2005, pp. 413-420. [view] Nominated for Best NAMRI Paper Award.

[J10] Y. Karpat* and T. Özel, “Hard Turning Optimization Using Neural Network Modeling and Swarm Intelligence,” Transactions of North American Manufacturing Research Institute, Vol. XXXIII, 2005,  pp. 179-186. [view]

[J9] T. Özel and Y. Karpat*, "Predictive Modeling of Surface Roughness and Tool Wear in Hard Turning Using Regression and Neural Networks," International Journal of Machine Tools and Manufacture, 2005, Vol. 45, pp. 467-479. Ranked 1st in Top 25 Hottest Articles by ScienceDirect.com. [view]

[J8] T. Özel, T-K. Hsu* and E. Zeren*, "Effects of Cutting Edge Geometry, Workpiece Hardness, Feed Rate and Cutting Speed on Surface Roughness and Forces in Finish Turning of Hardened AISI H13 Steel", International Journal of Advanced Manufacturing Technology, 2005, Vol. 25, pp. 262-269. [view] 

[J7]  T. Özel and E. Zeren*, "Determination of Work Material Flow Stress and Friction Properties for FEA of Machining Using Orthogonal Cutting Tests," Journal of Materials Processing Technology, 2004, Vol. 153-154, pp. 1019-1025. [view]

[J6] T. Özel, "Modeling of Hard Part Machining: Effect of Insert Edge Preparation for CBN Cutting Tools," Journal of Materials Processing Technology, 2003, Vol.141, pp. 284-293. [view]

[J5] T. Özel and A. Nadgir*, "Prediction of Flank Wear by Using Back Propagation Neural Network Modeling When Cutting Hardened AISI H-13 Steel with Chamfered and Honed CBN Tools," International Journal of Machine Tools and Manufacture, 2002, Vol.42, pp. 287-297. [view]

[J4] T. Özel and T. Altan, "Process Simulation using Finite Element Method- Prediction of Cutting Forces, Tool Stresses and Temperatures in High-Speed Flat End Milling Process," International Journal of Machine Tools and Manufacture, 2000, Vol. 40/5, pp. 713-738. [view]

[J3] T. Özel and T. Altan, "Determination of Workpiece Flow Stress and Friction at The Chip-Tool Contact for High-Speed Cutting," International Journal of Machine Tools and Manufacture, 2000, Vol. 40/1, pp. 133-152. [view]

[J2] P. Fallböhmer, C. Rodriguez, T. Özel and T. Altan, "High Speed Machining of Cast Iron and Alloy Steels for Die and Mold Manufacturing," Journal of Materials Processing and Technology, 1999, Vol. 98, 104-115. [view]

[J1] T. Özel, M. Lucchi, C. Rodriguez and T. Altan, "Prediction of Chip Formation and Cutting Forces in Flat End Milling," Transactions of North American Manufacturing Research Institute, 1998, Vol. XXVI, pp. 231-236. [view]

*Denotes one of Dr. Özel's graduate students

Conference Publications 

[C28] T. Özel, and F. Pfefferkorn, "Pulsed Laser Assisted Micromilling for Die/ Mold Manufacturing," Proceedings of 2007 ASME International Conference on Manufacturing Science and Engineering, forthcoming, Paper No. 31101, October 15-18, 2007, Atlanta, GA.

[C27]  A. Dhanorker, X. Liu and T. Özel, "Micromilling Process Planning and Modeling for Micro Mold Manufacturing," Proceedings of 2007 ASME International Conference on Manufacturing Science and Engineering, forthcoming, Paper No. 31070, October 15-18, 2007, Atlanta, GA.

[C26] " W.H. Lee and T. Özel, "Laser Micromachining of Speherical and Elliptical 3-D Objects using Hole Area Modulation Method," Proceedings of 2007 ASME International Conference on Manufacturing Science and Engineering, forthcoming, Paper No. 31068, October 15-18, 2007, Atlanta, GA.

[C25] T.Özel, X. Liu, A. Dhanorker, "Modelling and Simulation of Micro-Milling Process," 4th International Conference and Exhibition on Design and Production of MACHINES and DIES/MOLDS, 21-23 June 2007, Cesme, TURKEY. 

[C24] Y. Karpat, T. Özel, J. Sockman, W. Shaffer, "Design and Analysis of Variable Micro-Geometry Tooling for Machining Using 3-D Process Simulations," Proceedings of International Conference on Smart Machining Systems, March 13-15, 2007 National Institute of Standards and Technology, Gaithersburg, Maryland, USA.

[C23] A. Dhanorker*  and T. Özel, "An experimental and modeling study on meso/micro end milling process," Proceedings of 2006 ASME International Conference on Manufacturing Science and Engineering, Paper No. 21127, October 8-11, 2006, Ypsilanti, MI.

[C22] Y. Karpat* and T. Özel, "Identification of Friction Factors for Chamfered and Honed Tools Through Slip-line field Analysis," Proceedings of 2006 ASME International Conference on Manufacturing Science and Engineering, Paper No. 21127, October 8-11, 2006, Ypsilanti, MI.

[C21]  Y. Karpat* and T. Özel, “An Analytical-Thermal Modeling Approach for Predicting Forces, Stresses and Temperatures in Machining with Worn Tools,” Proceedings of IMECE’05, 2005 ASME International Mechanical Engineering Congress & Exposition, Paper No. 81036, Orlando, Florida, November 5-11, 2005.

[C20] T. Özel and E. Zeren*, “Finite Element Modeling of Stresses Induced by High Speed Machining with Round Edge Cutting Tools,” Proceedings of IMECE’05, 2005 ASME International Mechanical Engineering Congress & Exposition, Paper No. 81046, Orlando, Florida, November 5-11, 2005.

[C19] T. Özel and E. Zeren*, “Finite Element Method Simulation of Machining of AISI 1045 Steel With A Round Edge Cutting Tool,” Proceedings of 8th CIRP International Workshop on Modeling of Machining Operations, Chemnitz, Germany May 10-11, 2005, pp. 533-542, Best Paper Award.

[C18] T. Özel and E. Zeren, “A Methodology to Determine Work Material Flow Stress and Tool-Chip Interfacial Friction Properties by Using Analysis of Machining,” Proceedings of IMECE’04, 2004 ASME International Mechanical Engineering Congress & Exposition, Paper No. 59176, Anaheim, California, November 13-19, 2004.

[C17] T. Özel and Y. Karpat, "Predictive Modeling of Hard Turning Processes Using Neural Networks," CD Proceedings of 13th Industrial Engineering Research Conference (IERC), Extended Abstract, May 15-19, 2004, Houston, Texas.

[C16] T. Özel and T-K. Hsu, "Internet-Based Remote Monitoring of Experiments in Hard Turning," CD Proceedings of 13th Industrial Engineering Research Conference (IERC), Extended Abstract, May 15-19, 2004, Houston, Texas.

[C15] T. Özel and Y. Karpat, "Prediction of Surface Roughness and Tool Wear in Finish Dry Hard Turning Using Back Propagation Neural Networks", Proceedings of the 17^th International Conference on Production Research (ICPR), August 3-7, 2003, Blacksburg, Virginia.

[C14] T. Özel and E. Zeren, "Determination of Work Material Flow Stress and Friction Properties For FEA of Machining Using Orthogonal Cutting Tests", Proceedings of the International Conference on Advances in Materials & Processing Technologies (AMPT), Vol.I, pp. 1378-1383, July 8-11, 2003, Dublin, Ireland.

[C13]  T. Özel, "Precision Tracking Control of A Horizontal Arm Coordinate Measuring Machine", Proceedings of the 2003 IEEE Conference on Control Applications (CCA), June 23-25, 2003, Istanbul, Turkey, Vol.1, pp. 103-108.

[C12] T. Özel, "Investigation of the Influence of Edge Preparation on CBN Cutting Tools when Machining Hardened AISI H-13 Tool Steel", CD Proceedings of the 2nd International Conference and Exhibition on Design and Production of Dies and Molds, June 21-23, 2001, Kusadasi, Turkey.

[C11] M. Geiger and T. Özel, "Development of Rapid Tooling for Injection Molding using Metal Filled Stereolithography (SLA) Cavity Inserts", CD Proceedings of the 2nd International Conference and Exhibition on Design and Production of Dies and Molds, June 21-23, 2001, Kusadasi, Turkey.

[C10] A. Nadgir and T. Özel, "Neural Network Modeling of Flank Wear for Tool Condition Monitoring in Orthogonal Cutting of Hardened Steels", CD Proceedings of the 4th International Conference on Engineering Design and Automation (EDA), July 30-August 2, 2000, Orlando, Florida, USA, pp.173-178.

[C9] T. Özel, "Development of A Predictive Machining Simulator for Orthogonal Metal Cutting Process", CD Proceedings of the 4th International Conference on Engineering Design and Automation (EDA), July 30-August 2, 2000, Orlando, Florida, USA, pp. 74-80. 

[C8] T. Altan, P. Fallböhmer, C. Rodriguez and T. Özel, "High Speed Cutting of Cast Iron and Alloy Steels- State of Research", Proceedings of the CIRP-VDI Conference on High-Performance Tools, Düsseldorf, Germany, November 1998, VDI Berichte 1399, pp.  309-330.

[C7] T. Özel and T. Altan, "Modeling of High Speed Machining Processes For Predicting Tool Forces, Stresses and Temperatures Using FEM Simulations", Proceedings of the CIRP Workshop on Modeling of Machining Operations, Atlanta, Georgia, May 1998, pp. 225-245.

[C6] T. Özel, M. Lucchi, C. Rodriguez and T. Altan, "Prediction of Chip Formation and Cutting Forces in Flat End Milling: Comparison of Process Simulations with Experiments", 26th North American Manufacturing Research Conference (NAMRC), Atlanta, Georgia, Technical Paper, Society of Manufacturing Engineers, 1998, MR98-250. 

[C5] T. Özel and T. Altan, "Prediction of Chip Flow, Temperatures and Stresses in Metal Cutting Operations", Proceedings of the ASM International Materials Solutions Conference, 1997, Indianapolis, Indiana, USA. 

[C4] T. Özel and Y. Altintas, "Design and Operation Principles of Computer Numerical Controlled Systems", Engineer and Machinery, V. 407, December 1993, pp. 18-30, (in Turkish). 

[C3] T. Özel and E. Uyar, "Trajectory Control and Accuracy Analysis in A Computer Controlled Model XY Table", Proceedings of the 7th IFAC-Information Control Problems in Manufacturing Technology, 1992, Vol.1, pp.230-234.

[C2] T. Özel, E. Uyar and B. Yardimoglu, "Kinematic Analysis and Accuracy Investigation of A Computer Controlled Model Manipulator", Proceedings of the IEEE International Workshop on Intelligent Motion Control, August 20-22, 1990, Istanbul, Turkey, pp.567-569.

[C1] T. Özel and E. Uyar, "Motion Control and Sensitivity Analysis of A Computer Controlled XY Table", Proceedings of the 5th National Symposium on Machine Theory and Dynamics, Bursa, Turkey, 1991, pp. (in Turkish).

Invited Seminars and Lectures

[I15]  "Advanced Machining Research at Rutgers", United Technologies Research Center, East Hartford, CT,   February 9, 2007.

[I14]   "Modeling and Predicting Temperature Fields in Micro-Geometry CBN Tools: Towards Variable Edge  Micro-Geometry Tools", Invited Presentation, CIRP Working Group on Temperature Measurements in Manufacturing Processes, Paris, France, January 24, 2007.

[I13]  "Finite Element Analysis of The Influence of Edge Roundness on The Stress and Temperature Fields Induced by High Speed Machining," Invited Presentation at CIRP 2nd Int. Conference on High Performance Cutting in University of British Columbia, Vancouver, Canada on June 12, 2006.

[I12]  "Predictive Modeling of Machining AISI 1045 Steel: Comparisons with Experimentally Measured Temperature Fields," Invited Presentation, CIRP Working Group on Temperature Measurements in Manufacturing Processes, Paris, France, January 25, 2006 .

[I11]  "Innovative Machining Processes for Micromanufacturing and Modeling of Micro/Meso Scale Mechanical Cutting," Invited Seminar, Yeditepe University, Istanbul, Turkey, July 22, 2005.

[I10]  "Finite Element Simulations of High Speed Machining with Round Edge Tools: Predictions of Temperature and Stress Fields," Mechanical Engineering Department Seminars, Izmir Institute of Technology, Izmir, Turkey, July 20, 2005

[I9]  "High Speed Machining of Hardened Steels," Society of Manufacturing Engineers, Chapter 102 Meeting, Paterson, NJ, February 24, 2003.

[I8]  "Neural Network Modeling of Tool Wear for Hard Part Machining," Mechanical Engineering Seminar Series, Stevens Institute of Technology, Hoboken, NJ, U.S.A., April 25, 2002.

[I7]  "An Integrated Simulation and Experimental Approach for Hard Part Machining Systems," Special Seminar, Izmir Institute of Technology, Izmir, Turkey, June 15, 2001.

[I6]  "An Integrated Simulation and Experimental Approach for Hard Part Machining Systems," Industrial Engineering, Rutgers University, Piscataway, NJ, U.S.A., April 16, 2001.

[I5]  "State of the Research in Finite Element Modeling of High Speed Machining," Special Seminar, Istanbul Technical University, Istanbul, Turkey, June 10, 2000.

[I4]  "High Speed Machining and Rapid Prototyping," Training Course, NASA Ames Research Center, San Jose, California, April 15, 2000.

[I3]  "High Speed Machining and Rapid Prototyping," Training Course, NASA Marshall Space and Flight Center, Huntsville, Alabama, October 19, 1999.

[I2]  "Emerging Manufacturing Technologies: Micromachining and Rapid Prototyping," NASA Glenn Research Center, Cleveland, Ohio, June 21, 1999.

[I1]  "Design for Manufacture," Invited Lecture, NASA Glenn Research Center, Manufacturing Engineering Division, Cleveland, Ohio, December 3, 1998.

Technical Reports

[T12] E. Zeren, T. Özel, "Development of Workpiece Material and Friction Models for Simulation of Machining of Aerospace Alloys", Final Report to New Jersey Space Grant Consortium, Rutgers University, Piscataway, New Jersey, USA.

[T11] T. Özel, T-K. Hsu, E. Zeren, "Effects of Cutting Edge Geometry, Workpiece Hardness, Feed Rate and Cutting Speed on Surface Roughness and Forces in Finish Turning of Hardened AISI H13 Steel", 2003, Report MARL-03-02, Rutgers University, Piscataway, New Jersey, USA.

[T10] A. Vernon, T. Özel, "Factors Affecting Surface Roughness in Finish Hard Turning", 2003, Report MARL-03-01, Rutgers University, Piscataway, New Jersey, USA.

[T9] E. Zeren, T. Özel, "Hard Milling Technology", 2002, Report MARL-02-02, Rutgers University, Piscataway, New Jersey, USA.

[T8] E. Zeren, T. Özel, "Hard Turning Technology", 2002, Report MARL-02-01, Rutgers University, Piscataway, New Jersey, USA.

[T7] T. Özel, "Cutting Force Measurements in Cut-off Process, Final Report",  Manchester Cutting Tool Company, January 2000, Cleveland State University, Cleveland, Ohio, USA. 

[T6]  T. Özel, T. Altan, "Investigation of High Speed Flat End Milling Process - Prediction of Chip Formation, Cutting Forces, Tool Stresses and Temperatures", 1998, Report HPM/ERC/NSM-98-R-022, The Ohio State University, Columbus, Ohio, USA.

[T5] R. Ramanarayanan, C. Rodríguez, T. Özel, N. Akgerman, T. Altan, "Design and Development of Tool Performance Analysis Software for Machining Operations", 1998, Report HPM/ERC/NSM-98-R-019, The Ohio State University, Columbus, Ohio, USA.

[T4] Y.C.Yen, T. Özel, T. Altan, "Process Modeling of Turning with Nose Radius Tools Using 2-Dimensional FEM Simulation", 1998, Report HPM/ERC/NSM/-98-R-27, The Ohio State University, Columbus, Ohio, USA.

[T3] M. Lucchi, T. Özel, T. Altan, "Prediction of Chip Formation and Cutting Forces in Flat End Milling Process Using 2D-FEM Simulations", 1997, Report HPM/ERC/NSM-97-R-021, The Ohio State University, Columbus, Ohio, USA.

[T2] S. Shintre, T. Özel, T. Altan, "Tool Wear in Metal Cutting - A State-of-the-Art Report", 1997, Report 97-R-6-D, The Ohio State University, Columbus, Ohio, USA.

[T1] S. Shintre, T. Özel, T. Altan, "Prediction of Tool Wear In Metal Cutting Using Finite Element Analysis", 1997, Report 97-R-8-D, The Ohio State University, Columbus, Ohio, USA.