Experimental Evaluation and Optimization of Dry Drilling Parameters of Stainless Steel Using Different Drill Bit

Abstract

Drilling is one of the widely used in machining processes for various purposes. Stainless steel is frequently used in automotive, aircraft and aerospace and dies or mold industries, home appliances, medical and electrical equipment, but machining of stainless steel is difficult due to high tensile strength, high ductility, low heat conductivity and high fracture toughness. The cutting temperature at drill tool-chip interface affects drill hole quality, lowers the tool life, reduces hole surface finishing and blunt edges of drill tool that decreases productivity. The main objective of this work is to reduce temperature caused in drill tool while dry drilling of stainless steel by optimizing drilling parameters and selecting suitable drill tool material. The values of drill tool bit temperatures were measured using an infrared thermometer. By varying spindle speed, depth of cut and feed rate the experimental proof to be evaluated. Simulation will be done with DEFORM 3D software.