A THEORETICAL-MODEL FOR PREDICTION OF GROOVE GEOMETRY ON LASER DRESSED GRINDING WHEEL SURFACE

This paper presents a three-dimensional unsteady state heat; conductio n model to predict the groove geometry on laser dressed grinding wheel surface. The thermal model describes the transient thermal phenomena that occur within the heterogeneous grinding wheel after laser pulse i s directed on the wheel surface. The heterogeneity of grinding wheels is considered by developing a grinding wheel model to depict the arran gement of grits and bond within the wheel and by estimating the proper ties of wheel at different locations using volume fraction averages ap proach. Groove shape predictions are based on the temperature distribu tion within the laser dressed wheel. Results of the theoretical groove widths are compared with the experimental results obtained on laser d ressed Al2O3 surface.