Tungsten carbide, as high-performance mold materials, possess numerous advantages such as excellent wear resistance, high-temperature strength, strong corrosion resistance and high compressive strength, making them widely used in various fields. However, finishing tungsten carbide is a relatively complex and difficult process. Today, we'll share information about electrical discharge machining (EDM) for tungsten carbide.
Electrical discharge machining, also known as electrical discharge machining or EDM, is a non-contact metal processing method. It utilizes the principle of electric spark discharge, generating an electric spark discharge on the workpiece surface through a high-energy pulsed current. During the discharge process, the metal material is dissolved, evaporated, and oxidized to achieve machining and engraving of the workpiece. Because sparks are visible during the discharge process, it is called electrical discharge machining.

EDM is commonly used to machine complex shapes such as holes, platforms, grooves, and cavities on tungsten carbide parts that require high precision. Due to its relatively slow processing speed and high cost, EDM is generally suitable for workpieces with high precision requirements. When machining cemented carbide using electrical discharge machining (EDM), setting the machining conditions is extremely important.Improper selection can easily lead to surface defects such as cracks, significantly impacting the lifespan of the cemented carbide mold and even threatening its scrap.
When finishing cemented carbide using EDM equipment, the following points should be noted:
1. The cemented carbide must be firmly secured on the worktable before finihshing. Do not use magnets to hold the cemented carbide,use a clamping fixture.
2. Cracks may occur in cemented carbide during EDM. Therefore, after completing each machining operation, check the machined surface for defects before proceeding to the next operation.
3. The surface of cemented carbide after EDM will be very smooth with sharp angles; exercise caution during handling and use.
Electrical discharge machining (EDM) equipment includes slow wire cutting, precision medium wire cutting, high precision EDM, and high-speed drilling machines, which can meet the cutting needs of cemented carbide precision mating parts, irregularly shaped parts, gears, helical gears, and other workpieces. OSTON CARBIDE owns a dedicated EDM production workshop for cemented carbide EDM to meet customers' special processing requirements for products,if you have any need or questions about EDM,contact us for more information.