Spark Machining  

Spark machining, also known as EDM (Electrical Discharge Machining), is a machining method used to shape metal through electrical discharges. This method is mainly used to machine hard materials or materials that are difficult to machine using methods such as milling and turning methods.  

How does Spark Machining Work  

Spark machining works by generating an electric spark between an electrode and the workpiece. The workpiece and electrode are immersed in a dielectric fluid, usually oil or deionized water. The electric spark creates an intense heat that melts and vaporizes material from the workpiece. By repeating this process thousands of times per second, complex and accurate shapes can be created with high precision.  

Wire EDM (Electric discharge molding)  

Matenco specializes in wire EDM. It is a form of EDM that uses a thin metal wire as an electrode to cut through the workpiece. Wire EDM allows hard materials to be machined and is particularly useful for creating detailed shapes and tight tolerances. The technique is widely used in industries such as tool and die making, aerospace and aviation.  


Areas of Application   

Spark machining is used in a wide range of industries, including tool and die making to create complex tools and molds with high precision requirements. In the aerospace industry, the technology is used to machine hard materials such as titanium and nickel-based alloys.  


Advantages and Limitations  

Spark machining offers several advantages. One of the most prominent is the high precision. They make it possible to produce detailed and complex shapes with very tight tolerances. The technique is particularly useful for machining hard materials that are difficult or impossible to machine using traditional methods. As there is no physical contact between the tool and the workpiece, mechanical stresses and deformations are avoided, maintaining the integrity of the workpiece. In addition, EDM is very versatile and can be used to machine both simple and complex geometries.  


Despite these advantages, EDM has some limitations. The process is generally slower than other machining methods. Due to the equipment and specific requirements for electrodes and dielectric fluid, costs can be higher.

Contact Matenco today

Are you interested in learning more about spark machining and how it can improve your manufacturing processes? Contact us at Matenco to discuss your specific needs and get customized solutions.   

Get in touch

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+46 (0) 8-556 282 00
Matenco AB
Jordbrotorpsvägen 2
136  50 Haninge
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