Mechanics of self-rotating double-disc grinding process
Journal article, 2022

Unlike most double-disc grinding processes, which use forced workpiece rotation, some double-disc processes rely on workpiece self-rotation driven by non-uniform shear forces resulting from partial wheel-workpiece coverage. This self-rotation is poorly understood, with workpiece angular frequency remaining unknown despite its importance. This paper investigates the kinematics of self-rotation via analytical modelling of the moment-equilibrium conditions, derived from experimentally determined specific-energy values. The model showed that workpiece coverage ratio is the dominant factor governing workpiece angular frequency, allowing for the choice of optimal workpiece coverage ratios that avoid (i) workpiece-stoppage and (ii) excessive frictional heat generation. The predicted velocity was validated with acoustic-emission measurements.

Double disc

Bearing

Grinding

Author

R. Drazumeric

University of Ljubljana

International Grinding Institute

J. Badger

Grinding Doc Consulting

International Grinding Institute

Tomas Gustavsson

SKF Group

Peter Krajnik

Chalmers, Industrial and Materials Science, Materials and manufacture

CIRP Annals - Manufacturing Technology

0007-8506 (ISSN) 17260604 (eISSN)

Vol. 71 1 309-312

Subject Categories

Production Engineering, Human Work Science and Ergonomics

Applied Mechanics

Manufacturing, Surface and Joining Technology

Areas of Advance

Production

DOI

10.1016/j.cirp.2022.03.033

More information

Latest update

3/7/2024 9