Experimental and statistical investigation of thermo-mechanical friction drilling process

Abstract

This paper deals with the experimental investigation and analysis of the thermo-mechanical friction drilling process. Experiment technique is presented and described; experimental results of the thermo-mechanical friction drilling for hot rolled S235 steel, AISI 4301 stainless steel and Al 5652 aluminium alloy are presented and discussed. Statistical five variable linear regression analysis was performed in order to evaluate the influence of mechanical properties of the materials, drilling regimes and workpiece thickness on maximal drilling force and torque variation. Proposed multivariable linear regression models to optimise drilling process.