Influence of radial rake angle and cutting conditions on friction during end milling of Nimonic 263

Abstract

In machining processes, the friction and frictional stress formation along the interface between the chip and the tool rake face give rise to energy consumption, tool wear, and failure. This study aims to investigate the influence of tool nomenclature (radial rake angle) and cutting conditions (spindle speed and table feed velocity) on the impediment of friction and frictional stress in the perspective of equivalent pressure coefficients during end milling process, and additionally, the comparative study has been made. The experimental outcome clearly indicates that the machining parameter and tool nomenclature have significant effects on frictional stress impediment under pure sliding condition. Among these, tool nomenclature has higher and significant beneficial impact on the obstruction of frictional stress formation, and it is also stated that the cutting force and friction decreases, when the radial rake angle of cutter decreases when the helix angle and the positive axial rake angle is constant.