An investigation is reported on the wear of single-layer electroplated cubic boron nitride (CBN) grinding wheels and how the wear process affects the wheel topography and grinding behavior. Internal cylindrical and straight surface grinding experiments were conducted over a wide range of conditions on hardened bearing steel with wheels containing different abrasive grain sizes. The radial wheel wear was characterized in each case by an initial transient at a progressively decreasing rate to a steady-state wear regime at a nearly constant rate until the end of the wheel life. Wheel wear during the initial transient was found to be mainly due to pullout of the most protruding weakly held grains, and the radial wheel wear in the steady-state regime was dominated by grain fracture. The wear rate in the steady-state regime for various grinding conditions and grain sizes was found to be directly related to the undeformed chip thickness. Dulling of the grain tips by attrition and fragmentation caused an increase in the grinding power. Wheel wear was accompanied by a progressive increase in the active grain density and a corresponding decrease in surface roughness. The surface roughness was found to depend mainly on the active grain density and is insensitive to the operating parameters.
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e-mail: zhongde.shi@nrc-cnrc.gc.ca
e-mail: malkin@ecs.umass.edu
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February 2006
Technical Papers
Wear of Electroplated CBN Grinding Wheels
Z. Shi,
Z. Shi
Research Associate
Aerospace Manufacturing Technology Center,
e-mail: zhongde.shi@nrc-cnrc.gc.ca
Institute for Aerospace Research
, National Research Council Canada, Montreal, QC H3T 2B2, Canada
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S. Malkin
e-mail: malkin@ecs.umass.edu
S. Malkin
Distinguished Professor and Head of the Department of Mechanical and Industrial Engineering
Fellow ASME
University of Massachusetts
, Engineering Lab Building, Amherst, MA 01003
Search for other works by this author on:
Z. Shi
Research Associate
Aerospace Manufacturing Technology Center,
Institute for Aerospace Research
, National Research Council Canada, Montreal, QC H3T 2B2, Canadae-mail: zhongde.shi@nrc-cnrc.gc.ca
S. Malkin
Distinguished Professor and Head of the Department of Mechanical and Industrial Engineering
Fellow ASME
University of Massachusetts
, Engineering Lab Building, Amherst, MA 01003e-mail: malkin@ecs.umass.edu
J. Manuf. Sci. Eng. Feb 2006, 128(1): 110-118 (9 pages)
Published Online: July 5, 2005
Article history
Received:
March 31, 2005
Revised:
July 5, 2005
Citation
Shi, Z., and Malkin, S. (July 5, 2005). "Wear of Electroplated CBN Grinding Wheels." ASME. J. Manuf. Sci. Eng. February 2006; 128(1): 110–118. https://doi.org/10.1115/1.2122987
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