INVESTIGATION IN INFLUENCE OF TECHNOLOGY PARAMETERS ON MATERIAL REMOVAL RATE, PROCCESSING BY ELECTRIC DISCHARGEMACHINING USINGCOPPER ELECTRODE

Abstract

Electrical Discharge Machining (EDM) is one of the most important and
popular technologies in the world today [1, 5], applyingin machining the hard
materials with heat treatment in the mold manufacturing industry.
Optimization of technology parameters receives the attention of experts in the
EDM field. This paper presents the material removal rate (MRR) optimization by
Taguchi method with 4 input technology parameters: amperage (I); discharge
gap voltage (U); discharge on time (Ton); discharge off time (Toff), one output
parameter is material removal rate (MRR). Orthogonal matrix L25 in Taguchi
method was used to design the experiment. The results showed that, the
optimal parameter of SKD11 steel processing single-goal problem in EDM is
I = 5A; Ton = 18µs, Toff = 37µs; U = 60V significantly reduces the time and cost of
doing the experiment.