A review of machining parameters that effect to wire electrode wear

Wire electrical discharge machining (WEDM) or Wire-cut EDM is a non-traditional machining process, This process is a spark erosion process. That erodes material from work piece by a successive of electrical discharges. The spark erosion process is occurred between work piece and wire electrode. The wire electrode is used as the cutting tool. WEDM is widely used to cut high complexity shapes and present high accuracy. The advantage of WEDM is the capable cutting of hard metals that are difficult to cut with other process. To establish a quality of this process, material removal rate (MRR), surface finishing (SF), Kerf width and wire wear ratio (WWR) are measured. However, a life of cutting tool has been concerned, as wire wear ratio. This paper presents a review of machining parameters that effect to wire wear ratio. Pulse on time, pulse off time, peak current, servo voltage, gap voltage, dielectric flow rate, wire feed rate and wire tension are machining parameters which influence to wire wear ratio.