Characterization of Vitreous Bonded Grinding Wheels for CNC Crushing

Publikation: Beitrag in FachzeitschriftArtikelForschungPeer-Review

Autorschaft

  • B. Denkena
  • J. C. Becker
  • F. Catoni
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Details

OriginalspracheEnglisch
Seiten (von - bis)303-308
Seitenumfang6
FachzeitschriftKey Engineering Materials
Jahrgang257-258
Frühes Online-Datum15 Feb. 2004
PublikationsstatusVeröffentlicht - 2004

Abstract

Plunge grinding operations carried out by means of profiled CBN or diamond wheels make high demands on the tool profile generation process, The use of conventional plunge dressing processes based on the reproduction of the dressing roller profile into the grinding wheel leads to a considerable wear of the dressing tool. The innovative dressing process CNC crushing is particularly suitable for profiling and sharpening superhard grinding wheels. The working principle is based on a punctual contact between the grinding tool and the dressing tool. The shape of the dressing roller is independent of the grinding wheel profile which is generated by the CNC-system of the machine tool through a combined movement of its axes, making the process significantly flexible. By means of a closed loop system the dressing speed can be continuously controlled so that no relative speed occurs between the tool and the grinding wheel. This contributes to a reduction of the dressing roller wear. In order to be dressable through form crushing, the grinding wheel bonding system has to be sufficiently brittle, so that grits and bond material can be pulled out by the dressing normal forces, which are concentrated in the contact point. This contribution describes a test method aimed at characterizing the grinding layer of a wheel in regard to its mechanical properties. The method, based on the execution of penetration investigations by dint of a single grain diamond tool, allows determining elasticity and brittleness of a grinding layer and delivers a qualitative assessment of its suitability to be dressed through CNC crushing, as analogy investigations have shown.

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Characterization of Vitreous Bonded Grinding Wheels for CNC Crushing. / Denkena, B.; Becker, J. C.; Catoni, F.
in: Key Engineering Materials, Jahrgang 257-258, 2004, S. 303-308.

Publikation: Beitrag in FachzeitschriftArtikelForschungPeer-Review

Denkena, B, Becker, JC & Catoni, F 2004, 'Characterization of Vitreous Bonded Grinding Wheels for CNC Crushing', Key Engineering Materials, Jg. 257-258, S. 303-308. https://doi.org/10.4028/www.scientific.net/KEM.257-258.303
Denkena, B., Becker, J. C., & Catoni, F. (2004). Characterization of Vitreous Bonded Grinding Wheels for CNC Crushing. Key Engineering Materials, 257-258, 303-308. https://doi.org/10.4028/www.scientific.net/KEM.257-258.303
Denkena B, Becker JC, Catoni F. Characterization of Vitreous Bonded Grinding Wheels for CNC Crushing. Key Engineering Materials. 2004;257-258:303-308. Epub 2004 Feb 15. doi: 10.4028/www.scientific.net/KEM.257-258.303
Denkena, B. ; Becker, J. C. ; Catoni, F. / Characterization of Vitreous Bonded Grinding Wheels for CNC Crushing. in: Key Engineering Materials. 2004 ; Jahrgang 257-258. S. 303-308.
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