Bilkent ME Department

Yiğit Karpat

Associate Professor

Yiğit Karpat

Office:

EA 205

Phone:

+90 (312) 290-2263

E-mail:



 

Biography:

Yiğit Karpat received his B.S. degree from Dokuz Eylul University (1996) and his M.S. degree from Middle East Technical University (2000), both in Mechanical Engineering. He received his Ph.D from Rutgers University in Industrial Engineering (2007). At Bilkent University, he is an Associate Professor in the Department of Industrial Engineering, and he holds a joint appointment in Mechanical Engineering. He is actively involved in the Micro System Design and Manufacturing Center at Bilkent University. He is an associate member of the CIRP - International Production Academy.

Education:

  • B.S. Dokuz Eylul University, Mechanical Eng. (1996)
  • M.S. Middle East Technical University, Mechanical Eng. (2000)
  • Ph.D. Rutgers University, Industrial Eng. (2007)

Research:

Research areas:

-Modeling of process material interaction using physics based analytical and computational methods
-Design and fabrication of polycrystalline diamond (PCD) micro cutting tools,
-Machining of carbon fiber reinforced polymers, titanium alloys, silicon, and glass,
-Ultra precision machining of freeform optics,
-Micro stereo-lithography

Precision Manufacturing Research Group

Micro System Design and Manufacturing Center

Google Scholar

Member of:

Participates in:

Selected Publications:

    Journal Papers

  • Oliaei, S., Karpat, Y. (2017). "Built-up edge effects on process outputs of titanium alloy micro milling", Precision Engineering (in press)

  • Oliaei, S., Karpat, Y. (2017). "Investigating the influence of friction conditions on finite element simulation of micro scale machining with the presence of built-up edge", The International Journal of Advanced Manufacturing Technology (in press)

  • Karpat, Y., Oliaei, S.N. (2016). "Influence of tool wear on machining forces and tool deflections during micro milling", The International Journal of Advanced Manufacturing Technology, v.84 p.1963-1980

  • Karpat, Y., Oliaei, S.N. (2016). "Investigating the influence of built-up edge on forces and surface roughness in micro scale orthogonal machining of titanium alloy Ti6Al4V", Journal of Materials Processing Technology, v.235 p.28-40

  • Karpat, Y., Bahtiyar, O. (2015). "Tool geometry based prediction of critical thrust force while drilling carbon fiber reinforced polymers", Advances in Manufacturing, v.3 p.300-308

  • Zeinali, S., Çetin, B., Oliaei, S., Karpat, Y. (2015). "Fabrication of continuous flow microfluidics device with 3D electrode structures for high throughput DEP applications using mechanical machining", Electrophoresis, Special Issue on Dielectrophoresis, v.36(13) p.1432-1442
    Full Text | DOI: 10.1002/elps.201400486

  • Oliaei, S., Özdemir, C., Karpat, Y. (2014). "Fabrication of Micro Ball End Mills Using Micro Electro Discharge Machining", Int. J. of Mechatronics and Manufacturing Systems

  • Karpat, Y., Değer, B., Bahtiyar, O., Kaftanoğlu, B. (2014). "A Mechanistic Approach to Investigate Drilling of UD-CFRP Laminates with PCD Drills", CIRP Annals – Manufacturing Technology, v.63

  • Karpat, Y., Değer, B., Bahtiyar, O. (2014). "Experimental Evaluation of Polycrystalline Diamond Tool Geometries while Drilling Carbon Fiber Reinforced Plastics", Journal of Advanced Manufacturing Technology, v.71/5 p.1295-1307

  • Karpat, Y., Polat, N. (2013). "Mechanistic force modeling for milling of carbon fiber reinforced polymers with double helix tools", CIRP Annals- Manufacturing Technology, v.62 p.95-98

  • Karpat, Y., Değer, B., Bahtiyar, O. (2012). "Mechanistic Force Modeling for Milling of Unidirectional Carbon Fiber Reinforced Polymer Laminates", International Journal of Machine Tools and Manufacture, v.56 p.79

  • Karpat, Y., Değer, B., Bahtiyar, O. (2012). "Drilling Thick Fabric Woven CFRP Laminates with Double Point Angle Tools", Journal of Materials Processing Technology, v.212 p.2117

  • Karpat, Y. (2011). "Temperature Dependent Flow Softening of Titanium Alloy Ti6Al4V: An Investigation Using Finite Element Simulation Of Machining", Journal of Materials Processing Technology, v.211 p.737

  • Karpat, Y. (2010). "A Modified Material Model for the Finite Element Simulation of Machining Titanium Alloy Ti6Al4V", Machining Science and Technology, v.14 p.390

  • Karpat, Y. (2009). "Investigation of the Effect of Cutting Tool Edge Radius on Material Separation due to Ductile Fracture in Machining", International Journal of Mechanical Sciences, v.51 p.541

  • Karpat, Y., Özel, T. (2008). "Mechanics of High Speed Cutting with Curvilinear Edge Tools", International Journal of Machine Tools and Manufacture, v.48 p.195

  • Karpat, Y., Özel, T. (2008). "Analytical and Thermal Modeling of High-Speed Machining with Chamfered Tools", ASME Journal of Manufacturing Science and Engineering, v.130 p.011001

  • Özel, T., Karpat, Y., Srivastava, A. (2008). "Hard Turning with Variable Micro-Geometry PcBN Tools", CIRP Annals, v.57 p.73

  • Karpat, Y., Özel, T. (2007). "Multi-Objective Optimization For Turning Processes Using Neural Network Modeling And Dynamic-Neighborhood Particle Swarm Optimization", International Journal of Advanced Manufacturing Technology, v.35 p.234

  • Özel, T., Karpat, Y. (2007). "Identification of Constitutive Material Model Parameters for High-Strain Rate Metal Cutting Conditions Using Evolutionary Computational Algorithms", Materials and Manufacturing Processes, v.22 p.659

  • Özel, T., Karpat, Y., Figueira, L., Davim, J. (2007). "Modeling of Surface Finish and Tool Wear in Hard Turning of AISI D2 Steel Using Ceramic Wiper Inserts", Journal of Materials Processing Technology, v.189 p.192

  • Karpat, Y., Özel, T. (2006). "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, v.128 p.435

  • Karpat, Y., Özel, T. (2006). "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, v.128 p.445

  • Özel, T., Karpat, Y. (2005). "Predictive Modeling of Surface Roughness and Tool Wear in Hard Turning using Regression and Neural Networks", International Journal of Machine Tools and Manufacture, v.45 p.467

  • Conference Papers

  • Karpat, Y., Bahtiyar, O. (2016). "Energy Based Investigation of Process Parameters While Drilling Carbon Fiber Reinforced Polymers", Procedia CIRP, v.46 p.59-62

  • Karpat, Y., Çakmakcı, M., Ali, Z., Türeyen, E.B. (2016). "Fabrication of Polymer Micro Needles for Transdermal Drug Delivery System Using DLP Based Projection Stereo-lithography", Procedia CIRP, v.42 p.87-90

  • Karpat, Y., Oliaei, S.N. (2016). "Fabrication of PCD Mechanical Planarization Tools by Using μ-Wire Electrical Discharge Machining", Procedia CIRP, v.42 p.311-316

  • Karpat, Y., Bahtiyar, O. (2015). "Comparative analysis of PCD drill designs during drilling of CFRP laminates", Procedia CIRP, v.31 p.316-321

  • Oliaei, S., Karpat, Y. (2014). "Experimental Investigations on Micro Milling of Stavax Stainless Steel", CIRP High Performance Cutting Conference, Berkeley, USA

  • Oliaei, S., Özdemir C.,, Karpat, Y. (2013). "Fabrication of Micro Ball End Mills Using Micro Electro Discharge Machining", 7th International Conference And Exhibition on Design and Production of Machines and Dies/Molds, Antalya, TURKEY

  • Karpat, Y., Değer, B. B. O. (2012). "Mechanistic Force Modeling for Milling of Unidirectional Carbon Fiber Reinforced Polymer (CFRP) Laminates", 5th CIRP Conference on High Performance Cutting, Zurich

  • Korkmaz, E., Karpat, Y., Filiz, S. (2010). "Recent Developments in Micro Machining Technologies", 14th International Conference on Machine Design and Production, Cyprus

Comments are closed.