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Study of effects of process parameters in high speed grinding on surface integrity by Barkhausen noise analysis

Lookup NU author(s): Dr Meghanshu Vashista

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Abstract

An experimental study was undertaken to investigate the role of process parameters on the grindability of medium carbon steel in a high-speed grinding domain with particular emphasis on surface integrity. Surface residual stress on the ground specimens has been assessed using X-ray diffraction technique and Barkhausen noise analysis. High-speed grinding with cubic boron nitride (cBN) wheels, unlike conventional grinding, provided compressive residual stress throughout the experimental domain. This can be attributed to a desirable temperature control as the single layer cBN wheel with higher thermal conductivity than conventional wheels and grinding fluid took away a substantial part of the grinding heat flux. Micromagnetic or Barkhausen noise parameters correlated linearly with the residual stress, indicating its applicability in assessing the surface integrity of high-speed ground steel.

Publication metadata

Author(s): Vashista M, Paul S

Publication type: Article

Publication status: Published

Journal: Proceedings of the Institution of Mechanical Engineers Part B: Journal of Engineering Manufacture

Year: 2008

Volume: 222

Issue: 12

Pages: 1625-1637

ISSN (print): 0954-4054

ISSN (electronic): 2041-2975

Publisher: Sage Publications Ltd.

URL: http://dx.doi.org/10.1243/09544054JEM1214

DOI: 10.1243/09544054JEM1214

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