EDM Parametric Study of Composite Materials: A Review

Abstract

This paper outlines the findings of the investigational studies performed to explore the impact of the electrical discharge machining method and input variables on the properties of the output parameters. EDM allows the machining of very hard and high temperature resistant metals and alloys such as super-alloys, carbides, ceramic, composites and heat-resistant alloy. However, these products are challenging to produce owing to the need for higher cutting strength and large machine usage costs. EDM offers a minimal machining force with an appropriate tooling expense is a promising non-conventional machining method for machining Composites. As electrical erosion method is commonly used for the manufacturing of composites with further uses in the construction, aircraft and automotive industries. Composites have desirable physical as well as mechanical properties such as light weight, high specific modulus, higher toughness and Strength and thermal resilience. Due to wide range of application of composites nowadays the present analysis addresses the EDM and its input and output parameters such as Ton, T off and Discharge Current, etc. on the MRR and SR especially for the composites.The goal of this paper is to examine past work and to establish a path forward for study.

Improving Machining Performance for Deep Hole Drilling in the Electrical Discharge Machining Process Using a Step Cylindrical Electrode

“…Electrical discharge machining (EDM) is a modern processing machining method for materials that are difficult to use with conventional methods [1][2][3] as a result of high hardness, high wear resistance, and other special properties [3][4][5][6][7][8][9]. EDM is a machining process that removes some of the work material from the workpiece using the high temperature produced by spark discharges to erode the workpiece [3,8,10]. EDM is also known as spark machining, which involves spark eroding material from the conductive workpiece while it is submerged in a dielectric medium [11][12][13][14][15].…”

“…EDM is also known as spark machining, which involves spark eroding material from the conductive workpiece while it is submerged in a dielectric medium [11][12][13][14][15]. The principle of the EDM process is the controlled removal of material using an electrode as a cutting tool, which conducts electricity well and moves toward the workpiece by controlling the release of the electric current flowing through the sparking part under the machining gap [1,3]. EDM is suitable for non-contact workpieces as it sparks in a cycle of time (on-time) and stopping (off-time) during this period, called the duty factor [1,16].…”

“…The spark discharge conducted in the dielectric fluid is suitable to machine most conductive materials, regardless of the hardness of the workpiece due to the non-contact of the cutting tool (electrode) and workpiece [19,20]. Therefore, the quality of the EDM post-processing is high and EDM can be used with conductive materials [3,20]. The obtained surface quality texture properties depend on the EDM parameters such as discharge current, discharge voltage, pulse duration, pulse interval, and flushing method [21,22].…”

“…The problems of spark discharge after the cycle has finished and debris removal by flushing dielectric fluid through the machining gap to remove debris material to maintain consistent electrical conditions are yet to be addressed [3,23]. The material removal rate is an important consideration; altering the machining gap can increase the material removal rate, as well as improve surface finish [24].…”

Future Prospect of Plumbene: A Review

“…Henceforth, Plumbene with high mechanical stability may be used as reinforcing agent to improve various nanocomposite shaving high strength and exceptional material properties [80][81][82][83][84][85][86][87][88][89] .…”