Faculty

Kornel F. Ehmann

Kornel F. Ehmann

Professor of Mechanical Engineering

2145 Sheridan Road

Tech A215

Evanston, IL 60208-3109

(847) 491-3263
k-ehmann( at )northwestern.edu

Education

Ph.D. Mechanical Engineering, University of Wisconsin-Madison, 1979 

M.S. Mechanical Engineering, University of Belgrade, Yugoslavia, 1974

B.S. Mechanical Engineering, University of Belgrade, Yugoslavia, 1970

Research Interests

Micro/meso-scale manufacturing; precision engineering; machine tool dynamics and control; material removal processes; automation and robotics

Significant Recognition

  • Fellow of ASME (American Society of Mechanical Engineers)
  • Fellow of SME (Society of Manufacturing Engineers)
  • Distinguished Honorary Professor, Department of Mechanical Engineering, Indian Institute of Technology (IIT), Kanpur, India

Significant Professional Service

  • James N. and Nancy J. Farley Professor in Manufacturing and Entrepreneurship
  • Adjunct Professor, Department of Mechanical Science and Engineering, University of Illinois at Urbana/Champaign
  • Adjunct Chair Professor, Chung Yuan Christian University, Chung-Li, Taiwan
  • Past President of NAMRI/SME (North American Manufacturing Research Institution of SME)
  • Past Chair of the Manufacturing Engineering Division of ASME
  • Technical Editor: Trans. ASME - Journal of Manufacturing Science and Engineering
  • Editorial Board: SME Journal of Manufacturing Processes
  • Editorial Board: Int. Journal of Machine Tools and Manufacture

In the Classroom

Professor Ehmann teaches courses in the areas of design and manufacturing, in particular, Introduction to Design and Manufacturing and one or more of the courses in the Computer Integrated Manufacturing sequence, i.e., Manufacturing Processes, CAD/CAM, and Manufacturing Automation. All these courses heavily rely on regular hands-on laboratory exercises with state-of-the-art software and industrial quality equipment that go well beyond typical laboratory experiences. 

Professor Ehmann also teaches courses at the graduate level. These include: (a) Computer Control in Manufacturing, which emphasizes the use of digital and adaptive control methods for process and motion control in a variety of machine tools and robots; (b) Metal Cutting, in which the mechanics of material removal processes, their stability, and pragmatic implementation are studied; and (c) Micro-manufactuting, which focuses on the emerging field of miniaturization technologies through the consideration of the associated design, processing, and metrology issues.

Selected Publications

  • Malhotra, Rajiv; Cao, Jian; Saxena, Ishan; Ehmann, Kornel, “Laser-induced plasma micro-machining (LIPMM) for enhanced productivity and flexibility in laser-based micro-machining processes”, CIRP Annals - Manufacturing Technology, (2013)
  • Ehmann, Kornel F.; Slavkovic, Nikola R.; Milutinovic, Dragan S.; Kokotovic, Branko M.; Glavonjic, Milos M., “Cartesian compliance identification and analysis of an articulated machining robot”, FME Transactions, (2013)
  • Ehmann, Kornel; Bertsche, Erich; Malukhin, Kostyantyn, “Ultrasonic slot machining of a silicon carbide matrix composite”, International Journal of Advanced Manufacturing Technology, (2013)
  • Guo, Ping; Ehmann, Kornel F., “An analysis of the surface generation mechanics of the elliptical vibration texturing process”, International Journal of Machine Tools and Manufacture, (2013)
  • Ehmann, Kornel; Han, Peidong, “Study of the effect of cannula rotation on tissue cutting for needle biopsy”, Medical Engineering and Physics, (2013)
  • Guo, Ping; Ehmann, Kornel F., “Development of a tertiary motion generator for elliptical vibration texturing”, Precision Engineering, (2013)
  • Ehmann, Kornel; Han, Peidong; Che, Demeng; Pallav, Kumar, “Models of the cutting edge geometry of medical needles with applications to needle design”, International Journal of Mechanical Sciences, (2012)
  • Ehmann, Kornel; Malukhin, Kostyantyn, “A generalized analytical model of the cutting angles of a biopsy needle tip”, Journal of Manufacturing Science and Engineering, Transactions of the ASME, (2012)
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