Experimental Investigation of Friction Drilling on Brass, Aluminium and Stainless Steel

AbstractFriction drilling, a non traditional hole making process is performed on brass, aluminium and stainless steel using a conical tungsten carbide tool. The thrust forces involved in the process of friction drilling for various speeds and feed rates is measured with the help of drill tool dynamometer. The variations in hardness in the heat affected areas of the work piece are measured. The temperature distribution during the friction drilling for various speeds is also measured. The microscopic observations of the drilled holes are examined using Scanning Electron Microscope (SEM). The thrust forces showed gradual increment for increase in feed rates for constant speed. The microstructure images showed high adhesion of work piece and material transfer in the case of aluminium