Electrical Discharge Machining Service

Electrical discharge machining (EDM), also known as spark machining, spark eroding, die sinking, wire burning or wire erosion, is a metal fabrication process whereby a desired shape is obtained by using electrical discharges.

EDM machining comes in three different types, which are wire EDM, die sinking EDM, and EDM hole drilling. These are the diverse and popular ways of removing material from a conductive workpiece using thermal energy, regardless of its mechanical properties.

STEMart provides comprehensive electrical discharge machining services to solve your problems in production and research and meet relevant regulations and international standards, thus improving the quality and performance of your products.

Types of EDM

• Wire EDM

This type of EDM machining is also known as wire erosion, which uses a very thin wire, usually brass, as the electrode to burn the workpiece. Here, the wire is spun in a carefully controlled manner between two reels. It causes a spark between the wire and the workpiece, and the cutting is done in deionized water.

Applications:

• Concept build prototypes
• Shapes carbine tools and templates
• Manufacturing of micro-tooling
• Blanking punches and extrusion dies
• Medical devices
• Used in Aerospace, Automotive, Medical, and Semiconductor

• Die Sinking EDM

Die sinking EDM is an ideal process for manufacturing parts and components with complex cavities by forming the desired shape. The inverse of the shape is imprinted on the part as the electrode forces itself into the workpiece. At the same time, a control mechanism controls the gap voltage while maintaining the sparking.

• Hole Drilling EDM

The third type of EDM machining is EDM hole drilling, which is used to drill holes. Like a drill bit, a small hollow tube electrode spins during the process. One advantage of hole drilling EDM over other drilling techniques is that deburring isn’t required because material hardness doesn’t affect the process.

For more information about our electrical discharge machining services and equipment, please contact us.