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  4. Modeling the orientation-dependent dynamics of machine tools with gimbal heads
 
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2014
Conference Paper
Title

Modeling the orientation-dependent dynamics of machine tools with gimbal heads

Abstract
Machine tools with gimbal heads continuously rotate and/or pivot their spindle heads to maintain the required relationship between the tool and the surface being cut. This results in orientation-dependent dynamic behavior at the tool-center-point, which further results in orientation-dependent machining stability of the system, potentially limiting productivity during continuous cutting. A dynamic substructuring procedure is proposed to model this behavior by orienting machine tool substructures to their proper configuration prior to synthesis to obtain the synthesized orientation-dependent response. Influence of the changing dynamics on chatter stability is further investigated; and, a strong dependence of machining stability on orientation is observed.
Author(s)
Law, Mohit
Grossi, N.
Scippa, A.
Phani, A.S.
Altintas, Yusuf
Mainwork
Innovations of sustainable production for green mobility. Energy-efficient technologies in production. Pt.1  
Conference
International Chemnitz Manufacturing Colloquium (ICMC) 2014  
International Colloquium of the Cluster of Excellence (eniPROD) 2014  
Language
English
Fraunhofer-Institut für Werkzeugmaschinen und Umformtechnik IWU  
Keyword(s)
  • machine tool

  • dynamics

  • stability

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