As a non-traditional material removal procedure, electrical discharge machining (EDM) in precision machining Malaysia is now the most common. There are several causes for this. EDM permits the machining of exceptionally hard materials and the production of complicated shapes with high precision. Automation is another element that meets modern manufacturing’s demands. Because of this, EDM is mostly used in die and mold-making, as well as prototyping. New EDM technologies, including deep sinking, contouring, wire, and milling, were made possible by the advent of numerically controlled equipment. Combining these factors led to a functional expansion, which is partly responsible for the increased interest in EDM technology. Metals like high alloy steels are commonly used in the above-mentioned sectors as a result of the use of EDM. For EDM to be practical, the material must be electrically conductive.
Modern businesses are increasingly using advanced engineering ceramics because of their superior mechanical properties, such as high hardness, high compressive strength, and chemical and abrasion resistance, among others. These ceramics must be able to be molded in a cost-effective manner. Traditional sawing and grinding under optimal conditions is acceptable for simple geometries. Preparation of most ceramics uses the typical powder metallurgy (PM) method of manufacturing. PM is a near-net-shape process, however, analysis of the PM market finds that around 60% of all components require some sort of post-machining operation (such as finishing). This may be due to the fact that powder pressing cannot produce geometries with transverse holes, undercuts, bevels, slots, and threads.
To create a variety of workpieces, EDM is used. A variety of machining cycles are available on the EDM machine including vertical machining, spherical, circular, helical, and conical machining, as well as spin and indexing machining. The advantages of EDM over conventional machining are numerous. As a result of the usage of EDM, electrically conductive materials can be cut, which has been utilized to machine toughened and heat-treated workpieces. Complex and sophisticated profiles can be cut properly, quickly, and at a lesser price. The production of thin, fragile sections has been facilitated by the absence of burrs. Mainly employed in the tool and die industry, EDM is a relatively new technology. For prototypes and production items, EDM has become a vital aspect of the manufacturing process today.
It is a method of eliminating undesirable material by applying discharging sparks in a gap between an electrode and a conductor workpiece through a thermal process. Use this technology to manufacture refractory metals and hard materials that are difficult to machine using traditional machining procedures. Only electrically conductive materials can be used in EDM. In the case of hardened steel, titanium alloys, and superalloys, EDM can rapidly remove them without the need for pretreatment, such as heat softening. Additionally to eroding metallic materials, EDM is being used to erode ceramic materials as well as hard-to-machine materials such as PCBN and PCD, which greatly boosts material removal rates.