Assessment of advanced process configurations for improving workpiece surface finish in point grinding

Fernanda Medina Aguirre; Luis Soriano Gonzalez; Richard Hood; Ming Chu Kong; Donka Novovic; Sein Leung Soo

doi:10.1016/j.cirp.2023.04.078

Assessment of advanced process configurations for improving workpiece surface finish in point grinding

Fernanda Medina Aguirre, Luis Soriano Gonzalez, Richard Hood^*, Ming Chu Kong, Donka Novovic, Sein Leung Soo

^*Corresponding author for this work

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Abstract

The effect of workpiece tilt angle (0°, 30°) and tool ultrasonic vibration was evaluated when machining hardened steel with electroplated CBN grinding points (B15, B30, B54). Workpiece inclination had the greatest influence in decreasing surface roughness (Ra) by up to ∼44%, with the lowest value (∼0.32 µm) achieved at 30° tilt angle when ultrasonic assisted grinding using B30 wheels. Despite also reducing roughness, use of ultrasonic actuation generally increased specific volumetric grit loss (∼11%) and normal forces (∼14%) compared to conventional grinding when employing B15 and B30 points. No substantial microhardness modification was evident in most of the ground surfaces.

Original language	English
Pages (from-to)	267-272
Journal	CIRP Annals
Volume	72
Issue number	1
Early online date	29 Apr 2023
DOIs	https://doi.org/10.1016/j.cirp.2023.04.078
Publication status	Published - 13 Jul 2023

Keywords

Grinding
Ultrasonic
Wear

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title = "Assessment of advanced process configurations for improving workpiece surface finish in point grinding",

abstract = "The effect of workpiece tilt angle (0°, 30°) and tool ultrasonic vibration was evaluated when machining hardened steel with electroplated CBN grinding points (B15, B30, B54). Workpiece inclination had the greatest influence in decreasing surface roughness (Ra) by up to ∼44%, with the lowest value (∼0.32 µm) achieved at 30° tilt angle when ultrasonic assisted grinding using B30 wheels. Despite also reducing roughness, use of ultrasonic actuation generally increased specific volumetric grit loss (∼11%) and normal forces (∼14%) compared to conventional grinding when employing B15 and B30 points. No substantial microhardness modification was evident in most of the ground surfaces.",

keywords = "Grinding, Ultrasonic, Wear",

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AU - Medina Aguirre, Fernanda

AU - Soriano Gonzalez, Luis

AU - Hood, Richard

AU - Kong, Ming Chu

AU - Novovic, Donka

AU - Soo, Sein Leung

PY - 2023/7/13

Y1 - 2023/7/13

N2 - The effect of workpiece tilt angle (0°, 30°) and tool ultrasonic vibration was evaluated when machining hardened steel with electroplated CBN grinding points (B15, B30, B54). Workpiece inclination had the greatest influence in decreasing surface roughness (Ra) by up to ∼44%, with the lowest value (∼0.32 µm) achieved at 30° tilt angle when ultrasonic assisted grinding using B30 wheels. Despite also reducing roughness, use of ultrasonic actuation generally increased specific volumetric grit loss (∼11%) and normal forces (∼14%) compared to conventional grinding when employing B15 and B30 points. No substantial microhardness modification was evident in most of the ground surfaces.

AB - The effect of workpiece tilt angle (0°, 30°) and tool ultrasonic vibration was evaluated when machining hardened steel with electroplated CBN grinding points (B15, B30, B54). Workpiece inclination had the greatest influence in decreasing surface roughness (Ra) by up to ∼44%, with the lowest value (∼0.32 µm) achieved at 30° tilt angle when ultrasonic assisted grinding using B30 wheels. Despite also reducing roughness, use of ultrasonic actuation generally increased specific volumetric grit loss (∼11%) and normal forces (∼14%) compared to conventional grinding when employing B15 and B30 points. No substantial microhardness modification was evident in most of the ground surfaces.

KW - Grinding

KW - Ultrasonic

KW - Wear

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EP - 272

JO - CIRP Annals

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ER -

Assessment of advanced process configurations for improving workpiece surface finish in point grinding

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