Influence of different grinding wheel and dressing roller specifications on grinding wheel wear

  • Sebastian Prinz
  • Daniel Trauth
  • Patrick Mattfeld
  • Fritz Klocke
Production Process
  • 4 Downloads

Abstract

A targeted adjustment of the dressing results and the methodological influence of the dressing process on the non-stationary wear of a grinding wheel after dressing increases the productivity and the reproducibility of grinding processes. Despite the great economic importance of grinding processes with vitrified corundum grinding wheels and the great relevance of the dressing process for the application behavior of these grinding wheels, quantitative models are missing for the purposeful design of the dressing process. In previous studies, a dressing model was successfully developed which predicts the dressing force in the dressing process as well as the workpiece roughness and the grinding wheel wear behavior in a grinding process for a specific grinding wheel and form roller specification. However, a transferability of this model to other grinding wheel and form roller specifications is not possible because the influence of the grain size and the hardness of the grinding wheel as well as the dressing tool topography on the grinding wheel wear and thus on parameters of the dressing model are not known. The objective of this work was to extend the model to additional grinding wheel and form roller specifications to ensure a broad applicability of the model.

Keywords

Grinding Dressing Tool wear 

List of symbols

∆rs

Grinding wheel radial wear (µm)

ae

Depth of cut (µm)

aed

Depth of dressing cut (µm)

Ahd

Mean dressing chip cross section (µm2)

apd

Dressing contact width (mm)

fad

Axial dressing feed per grinding wheel revolution (mm)

Fnd

Dressing normal force (N)

lkd

Kinematic contact length (mm)

qd

Dressing speed ratio (−)

Coefficient of determination (−)

Ud

Dressing overlap ratio (−)

vrd

Velocity of the form roller (m/s)

vs

Grinding wheel circumferential speed (m/s)

vsd

Grinding wheel circumferential speed during dressing (m/s)

Vsd,pg

Dressed grinding wheel volume per grain (mm3)

vw

Workpiece speed (m/min)

V′w

Specific material removal (mm3/mm)

Notes

Acknowledgements

The authors would like to thank the German Research Foundation (DFG) for funding the research project “Quantitatives Modell des Abrichtens von keramisch gebundenen Schleifscheiben” (KL 500/99-2).

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Copyright information

© German Academic Society for Production Engineering (WGP) 2018

Authors and Affiliations

  • Sebastian Prinz
    • 1
  • Daniel Trauth
    • 1
  • Patrick Mattfeld
    • 1
  • Fritz Klocke
    • 1
  1. 1.Laboratory for Machine Tools and Production Engineering (WZL) of RWTH Aachen UniversityAachenGermany

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