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.

Modeling the orientation-dependent dynamics of machine tools with gimbal heads / M. Law; N. Grossi; A. Scippa; A.S. Phani; Y. Altintas. - ELETTRONICO. - (2014), pp. 779-795. (Intervento presentato al convegno 3rd International Chemnitz Manufacturing Colloquium, ICMC 2014 tenutosi a Chemnitz, Germany nel 8-9 April 2014).

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

GROSSI, NICCOLO';SCIPPA, ANTONIO;
2014

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.
2014
3rd International Chemnitz Manufacturing Colloquium, ICMC 2014
3rd International Chemnitz Manufacturing Colloquium, ICMC 2014
Chemnitz, Germany
8-9 April 2014
M. Law; N. Grossi; A. Scippa; A.S. Phani; Y. Altintas
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Utilizza questo identificatore per citare o creare un link a questa risorsa: https://hdl.handle.net/2158/947193
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