Study of Various Parameters on Automatic EDM for Machining of HSTR Alloys

Abstract

Nowadays we are looking forward to the needs of too much, such as material use in the medical, aerospace-industries & military industries, etc. in addition to those that are employed in the electronics industry, high strength temperature resistant (HSTR) alloys of titanium, carbides, anamonics', and ceramics are also included in this category. Because of the wide variety of uses of tungsten alloy, these tungsten-carbide alloys present some unique machining opportunities. Tungsten carbide, because of its intricate forms and geometry, is notoriously difficult to produce using the conventional manufacturing technique. In hance high accuracy for machine tungsten carbide with good options include things like Automations, Non-traditional Machining (NTM), machining techniques are laser-beam-machining (LBM) & electron-beam-machining (EBM) and electric discharge machining (EDM), amongst others. The copper electrode was used in the machining of tungsten carbide, which had 93 percent WC and 7 percent Co, according to the authors of this paper. Machining is performed using an Automations-EDM MODEL-500 equipped with an X-300 ENC and a VELVEX EDMVEL-2. Additionally, the machine is equipped with Automation components such as real-time feedback sensors, handling systems, and a robot with dielectric oil. There 17 types of experiments have been done based on the RSM (Box-Behnken) method. Furthermore, Authors performed experiments, in order to locate the solutions that are the most effective overall combination grey relational analysis is used. The GRA technique illustrates that the ideal combinations for P-on-t (pulse-on-time) are 40 microseconds, P-off-t (pulse-off-time) for 2 microseconds, and current supply of 12 Ampere. Last, the confirmation experiment has been conducted.