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Self-generated vibrations and process stability when turning high chromium white cast iron with PCBN tools

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Author

Summary, in English

The dynamic instability and related problems when turning high chromium cast iron (HCCI) with two polycrystalline cubic boron nitride (PCBN) tools in wide range of cutting speeds and feed rates were studied in the article. The tool wear mechanisms and specifics for both tools as a main criterion of appearance of process instability were investigated. In spite of the chatter-like surface of machined workpieces it was shown the dynamic stability of process by two method ‘0-1 test’ and determination of maximum Lyapunov exponent. Taking into account the strong periodicity of process with several clear harmonics it was concluded that such process is related to self-resonant phenomena.

Publishing year

2014

Language

English

Publication/Series

Proceedings of the 6th Swedish Production Symposium

Document type

Conference paper

Publisher

The Swedish Production Academy

Topic

  • Materials Engineering

Keywords

  • high-chromium white cast iron
  • PCBN tools
  • self-generated vibrations
  • dynamic instability

Conference name

Swedish Production Symposium, 2014

Conference date

2014-09-16 - 2014-09-18

Conference place

Gothenburg, Sweden

Status

Published