ANALYSIS OF DEEP HOLE DRILLING IN PRESENCE OF ELECTROMAGNETIC FIELD USING TAGUCHI TECHNIQUE

摘要

Electromagnetic field assisted machining is potential and is of particular interest to be explored to improve machining quality with minimum environmental effect. In this study, the effect of electromagnetic field on tool and workpiece is analyzed along with the effects of presence of drilling bush, feedrate, and spindle speed to the quality of hole for deep hole drilling. The effect of these control factors to the drilled hole's cylindricity error and roundness error was determined using Taguchi technique. L_(16) orthogonal array design of experiments was used, with regression model was calculated and tested using analysis of variance. Spindle speed was found to be the only significant factor, with other factors did not give significant effect to roundness or cylindricity, except for tool magnetization which affected cylindricity. Issues with magnetization system are likely hinder the magnetic field to exhibit potential to improve machining quality, and should be addressed for future study.