Electrical Discharge Machining (EDM) – Precision and Machining of Complex Shapes

Electrical discharge machining (EDM) is a modern machining method that uses electrical erosion to process industrial parts. It relies on generating an electric field between the electrode and the workpiece, allowing controlled removal of excess material through electric discharges. Thanks to this, EDM is ideal for the most demanding projects requiring high precision and the ability to machine complex features in hard materials such as tool steels and cemented carbides.

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EDM Services – A Wide Range of Capabilities


We offer both sinker EDM and wire EDM services, enabling cutting of materials and shaping parts with various geometries. In sinker EDM, a form-shaped electrode “digs” into the workpiece, allowing for the production of injection molds and tool repairs. Wire EDM uses a wire-shaped electrode, providing the capability to machine precise geometries such as gears and other complex parts. This EDM method is especially useful when conventional machining becomes too complicated or inefficient.

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EDM Machines – The Key to an Efficient Process

In EDM, specialized machines play a key role, offering sinker and wire EDM capabilities applicable across various industries. The electrical discharge machining process is fully automated, enabling high-quality surface finishes even in hard-to-reach areas. Precise control of discharge parameters also allows for the repair of tools with complex geometries.

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Key Advantages of Electrical Discharge Machining (EDM)



  • Capability to Machine Difficult-to-Cut Materials     Thanks to the phenomenon of electrical erosion, EDM is ideal for cutting and shaping hard materials, including cemented carbides.

  • High Precision and Repeatability 
    The electric discharge controls material removal point by point, enabling highly accurate results without excessive tool wear.

  • Machining of Complex Shapes 
    Both wire EDM and sinker EDM enable machining of complex features that would be difficult or even impossible to achieve with traditional machining methods.

  • Brak wpływu mechanicznego    No Mechanical Impact
    Since the process is based on generating an electric field, there is no mechanical pressure between the tool and the material. This prevents deformation of thin or delicate parts.

  • Wide Range of Applications 
    This method is effective for manufacturing injection molds, gears, and other parts where high precision is required, as well as machining areas inaccessible to traditional methods.

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EDM Summary – Why Choose Electrical Discharge Machining?

The EDM process is an excellent solution for companies seeking an effective method for machining metals and other hard materials. Both sinker and wire EDM enable the creation of complex-shaped parts without risking mechanical deformation. This allows for the successful execution of the most demanding industrial component projects. Investing in this machining method increases competitiveness, minimizes waste, and maximizes the potential of difficult-to-machine materials. ​


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