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Theoretical and experimental analysis of SiC dry grinding while reducing momentarily engaging cutting edges

 
: Azarhoushang, Bahman; Tawakoli, Taghi; Westkämper, Engelbert

Altintas, Y. ; International Academy for Production Engineering -CIRP-, Paris; Univ. of British Columbia, Vancouver:
2nd International Conference Process Machine Interactions 2010. Proceedings. CD-ROM : June 10-11, 2010, Vancouver, BC, Canada
Vancouver, 2010
ISBN: 978-0-9866331-0-2
Paper G6, 11 S.
International Conference on Process Machine Interaction (PMI) <2, 2010, Vancouver>
Englisch
Konferenzbeitrag
Fraunhofer IPA ()
grinding; grinding wheel; Schleifen

Abstract
Grinding process involves high specific energy in comparison with the other machining processes. Virtually all of this energy is converted to heat which causes high wear of the grinding wheel, surface integrity issues and thermal damages on the workpiece. Since there are no cutting fluids to transfer the heat from the contact zone in the dry grinding process, minimizing the grinding energy, grinding forces and temperature are essential. To overcome the existing technological constraints in the dry grinding, a specially designed segmented wheel has been developed. Reducing the static cutting edges via segmenting the wheel which automatically leads to reduction of momentarily engaging cutting edges results in a reduction of rubbing and plowing regimes and therefore a decrease in the specific grinding energy. Both theoretical and experimental results illustrate the high performance of the presented method. A significant reduction in normal and tangential grinding forces and the specific grinding energy has been achieved.

: http://publica.fraunhofer.de/dokumente/N-151881.html