Vibration surveillance for efficient milling of flexible details fixed in adjustable stiffness holder

The paper presents the results of research related to the possibility of using an intelligent workpiece holder with adjustable stiffness, during end milling process. Machining a one side supported flexible workpiece will be performed with constant spindle speed and feed speed. In order to avoid haza...

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Bibliographic Details
Published inVibroengineering Procedia Vol. 3; pp. 215 - 218
Main Authors Kalinski, Krzysztof, Chodnicki, Marek, Galewski, Marek, Mazur, Michal
Format Journal Article
LanguageEnglish
Published JVE International Ltd 01.10.2014
Subjects
Machine-tools
Machining
Machinists' tools
Measurement
Mechanical properties
Methods
Production processes
Vibration
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Summary:The paper presents the results of research related to the possibility of using an intelligent workpiece holder with adjustable stiffness, during end milling process. Machining a one side supported flexible workpiece will be performed with constant spindle speed and feed speed. In order to avoid hazardous vibration, stiffness of the especially designed spring (mounted in a workpiece holder) will be modified off-line. In order to predict the accuracy of the proposed method, appropriate simulations were performed. As a simplified model of the flat workpiece it was applied the Euler-Bernoulli bar with possibility of identifying the two lowest normal modes. On this basis and for approaching optimal spindle speeds, the mean of adjusting relevant stiffness of the holder is invented.
ISSN:2345-0533