CIRP Encyclopedia of Production Engineering

2014 Edition
| Editors: The International Academy for Production Engineering, Luc Laperrière, Gunther Reinhart

Chatter Prediction

  • Michael Zaeh
Reference work entry
DOI: https://doi.org/10.1007/978-3-642-20617-7_6695

Synonyms

Definition

The term chatter prediction describes a range of simulation methods, which are used to predict chatter vibrations (instabilities). These methods are based on the dynamic compliance of the machine tool structure as well as on the dynamics of the machining process. The whole machine behavior can be expressed in terms of mathematical descriptions (coupled structure-process models), from which stability lobe diagrams can be derived.

Theory and Application

Chatter

In the context of chatter prediction, chatter describes a self-excited vibration occurring during a metal-cutting machining process. Its vibration frequency is close to the eigenfrequency of the most compliant eigenmode of the excited machine structure. According to Totis (2008), chatter can be classified as primary or secondary. Primary chatter (e.g., friction on contact surfaces, stress distribution on the normal rake face, thermoplastic behavior of the chip material, and mode...

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References

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Copyright information

© CIRP 2014

Authors and Affiliations

  1. 1.TU München, iwb - Institut für Werkzeugmaschinen und BetriebswissenschaftenMunichGermany