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Active Control of Chatter in Turning: The Origine of Chatter
Responsible organisation
1999 (English)Conference paper, Published paper (Refereed) Published
Abstract [en]

In the turning operation chatter or vibration is a frequent problem, which affects the result of the machining, and, in particular, the surface finish. Tool life is also influenced by vibration. Severe acoustic noise in the working environment frequently occurs as a result of dynamic motion between the cutting tool and the workpiece. By proper machine design, e.g. improved stiffness of the machine structure, the problem of relative dynamic motion between cutting tool and workpiece may be partially solved. To achieve a further reduction of the dynamic motion between cutting tool and workpiece one solution is the active control of machine-tool vibration. However, to successfully apply active control of tool vibration in the external turning operation the response of the tool holder shank has to be investigated in order to enable the proper introduction of secondary vibration in the tool holder shank and to select a suitable controller. The investigation of the dynamic response of the tool holder shank relies on a stochastic approach while the structural dynamic properties have been evaluated by a normal mode analysis. This resulted in active control of tool vibration in a lathe that enables a reduction of the vibration by up to 40 dB at 1.5 kHz and by approximately 40 dB at 3 kHz.

Place, publisher, year, edition, pages
SOC EXPERIMENTAL MECHANICS INC: SOC EXPERIMENTAL MECHANICS INC , 1999.
Keyword [en]
Acoustic noise, Turning, Cutting tools, Modal analysis, Lathes
National Category
Signal Processing
Identifiers
URN: urn:nbn:se:bth-9484ISI: 000079283700271Local ID: oai:bth.se:forskinfoD86E1EEBE64D85EFC1256C6F00592D39ISBN: 0-912053-64-X (print)OAI: oai:DiVA.org:bth-9484DiVA: diva2:837347
Conference
17th International Modal Analysis Conference (IMAC) on Modal Analysis - Reducing the Time to Market
Available from: 2012-09-18 Created: 2002-11-12 Last updated: 2015-06-30Bibliographically approved

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Håkansson, LarsClaesson, Ingvar
Signal Processing

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CiteExportLink to record
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  • apa
  • ieee
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