Effect of Magnetizing Parameters on Surface Integrity During Dry and Cryogenic Grinding of AISI D2 Tool Steel

Abstract

An experimental study was carried out to compare the role of process parameters, such as magnetizing frequency, magnetic field intensity, and depth of cut on the ground surface of AISI D2 tool steel under different grinding modes, i.e., dry and cryogenic conditions. The Barkhausen noise (BN) response from the ground surface of the workpiece was measured in terms of root mean square (RMS) and Peak. It was noted that variation in magnetizing frequency and depth of cut (DOC) inversely affect the RMS and Peak value of the BN signal. Also, variation in magnetic field intensity (MFI) directly affects the BN response parameters. The magnetizing frequency, MFI, and DOC were ranged between 10 to 40 Hz, 200 to 500 Oe, and 10 to 40 µm, respectively. The result revealed a better BN response of the cryogenic ground sample over the dry ground sample owing to fewer obstacles or hurdles for movement of the magnetic domain wall. A linear correlation between process parameters and BN responses could be obtained. © 2023, The Author(s), under exclusive license to Springer Nature Singapore Pte Ltd.