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Analysis of Dynamic Properties of Boring Bars Concerning Different Clamping Conditions
Ansvarig organisation
2007 (Engelska)Rapport (Övrigt vetenskapligt)
Abstract [en]

The boring bar is one of the most widely used type of tool holders in metal cutting operations. The turning process subjects the tool to vibrations, and cutting in deep workpiece cavities is likely to result in high vibration levels. The consequences of such vibration levels generally results in: reduced tool life, poor surface finishing and disturbing sound. Internal turning frequently requires a long and slender boring bar in order to machine inside a cavity, and the vibrations generally become highly correlated with one of the fundamental bending modes of the boring bar. Different methods can be applied to reduce the vibrations, the implementation of the most efficient and stable methods require in depth knowledge concerning the dynamic properties of the tooling system. Furthermore, the interface between the boring bar and the clamping house has a significant influence on the dynamic properties of the clamped boring bar. This report focuses on the dynamic properties of a boring bar that arise under different clamping conditions of the boring bar and are introduced by a clamping house (commonly used in the manufacturing industry). The dynamic properties of a boring bar (for different cases of boundary condition of the boring bar) are presented partly analytically but also experimentally.

Ort, förlag, år, upplaga, sidor
2007.
Serie
Blekinge Institute of Technology Research report, ISSN 1103-1581 ; 6
Nyckelord [en]
Modal Analysis, Clamping, Boundary Condition
Nationell ämneskategori
Signalbehandling Teknisk mekanik
Identifikatorer
URN: urn:nbn:se:bth-00359Lokalt ID: oai:bth.se:forskinfoFAAC0EA680E727F2C12572B30034816FOAI: oai:DiVA.org:bth-00359DiVA, id: diva2:837061
Tillgänglig från: 2012-09-18 Skapad: 2007-04-04 Senast uppdaterad: 2015-06-30Bibliografiskt granskad

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Håkansson, Lars

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