Kornel F. Ehmann
Northwestern University
320 Papers
1.5K Citations
Kornel F. Ehmann is an academic researcher from Northwestern University. The author has contributed to research in topics: Machining & Laser. The author has an hindex of 41, co-authored 303 publications. Previous affiliations of Kornel F. Ehmann include Chung Yuan Christian University & Nanjing University of Aeronautics and Astronautics.
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Papers
Design of general kinematotropic mechanisms
TL;DR: This paper presents a systematic design method for general kinematotropic mechanisms and introduces basic kinematic structures of spatial motions in serial and parallel forms, as well as two types of motion transformations with four kinem atotropic mechanisms synthesized and analyzed as illustrative examples of the method.
An Experimental Investigation of the Feasibility of “Self-Sensing” Shape Memory Alloy Based Actuators
TL;DR: In this paper, the authors explored the self-sensing concept in SMA wire-type actuators and showed that the relationship between the displacement and the voltage drop can be approximated by a linear regression with a correlation coefficient close to 1.
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Theoretical and Experimental Investigation on Inclined Ultrasonic Elliptical Vibration Cutting of Alumina ceramics
Wu-Le Zhu,Wu-Le Zhu,Yu He,Kornel F. Ehmann,Antonio J. Sánchez Egea,Xinwei Wang,Bing-Feng Ju,Zhiwei Zhu +7 more
TL;DR: In this paper, polycrystalline diamond tools are used to investigate the machining of nonporous pure alumina by applying an inclined ultrasonic elliptical vibration cutting (IUEVC) method.
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Chatter detection based on wavelet coherence functions in micro-end-milling processes:
Yanjie Yuan,Yanjie Yuan,Xiubing Jing,Huaizhong Li,Kornel F. Ehmann,Dawei Zhang +5 more
- 21 Oct 2018
TL;DR: In this article, the main challenges related to chatter vibrations, which are related to high precision fabrication of complex geometrical features with high precision on a wide variety of materials, are discussed.
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Third-octave-mode chatter in rolling. Part 3: Stability of a multi-stand mill
Pei Hua Hu,Huyue Zhao,Kornel F. Ehmann +2 more
- 01 Aug 2006
TL;DR: In this article, the stability of a tandem mill is analyzed by considering interstand interactions, and the theoretical analysis of the stability conditions is followed by a simulation study that shows the major dynamic trends in the mill's behaviour.
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