Characteristics of Electrolysis In-process Dressing Grinding of Al/SiC_p Composite Materials

Abstract

A study on grinding of 2124 Al/SiC p (15% SiC p ) metal matrix composite material with conventional and ELID grindings uses various current duty ratio. Normal forces and tangential forces are monitored. Surface roughness and Vickers hardness numbers are measured. When the results are compared ELID grinding shows less grinding forces due to the breakage of the insulating layer formed on the grinding wheel. A smoother surface can be obtained using a high current duty ratio. Vickers hardness number is reduced when ELID grinding is done with high current duty ratio. The results of this investigation are presented in this article.

ELID Grinding with Lapping Kinematics

“…This process repeats but the tendency of the normal and tangential forces is increased [46]. When the normal force starts to decrease after it reaches the peak point, an immediate increase of the tangential force occurs because of the breakage of the oxide layer.…”