Selection of optimum Drilling Parameter in Drilling of commercial Acrylic sheet to achieve minimum Hole Expansion by using Taguchi Approach

摘要

Drilling and Milling are the two most important machining processes. In drilling process, we make a hole in a work piece. In many engineering applications, it becomes very important to drill a precise hole. Accuracy of the hole depends upon the various factors such as cutting speed, feed, tool geometry, work material and thickness of the work piece to be drilled. During the drilling operation heat is generated at tool work interface which tends to decrease the accuracy of the hole. This phenomenon becomes extremely important in the drilling of plastics. This investigation presents the use of Taguchi method to achieve the minimum hole size expansion in drilling of acrylic sheet. The purpose of this paper is to investigate the effect of cutting parameters, such as cutting speed and feed rate, and point angle on hole size(without considering the thermal effect)..