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EDM, or Electrical Discharge Machining, is a service performed in the manufacturing industry that involves using electrical sparks to erode material from a workpiece. This process is highly precise and can be used to create complex shapes and designs that would be difficult or impossible to achieve with traditional machining methods. EDM is commonly used in the production of molds, dies, and other components for industries such as aerospace, automotive, and medical.

The EDM process involves a tool, typically made of copper or graphite, that is shaped to match the desired design of the workpiece. The tool is then brought into close proximity with the workpiece and a series of electrical sparks are discharged between them. These sparks erode the material from the workpiece, leaving behind the desired shape. EDM can be performed using either a wire or a sinker, depending on the specific requirements of the job.

One of the key advantages of EDM is its ability to work with hard materials such as titanium, tungsten, and hardened steel. This makes it an ideal choice for industries that require high-strength components. Additionally, EDM is a non-contact process, which means that there is no physical force applied to the workpiece. This reduces the risk of damage or distortion, making it a highly accurate and repeatable process.

Berkness Company is a manufacturing company that specializes in the production of custom components for a wide range of industries. With over 50 years of experience, they have developed a reputation for quality and precision. As a full-service provider, Berkness Company offers a range of services including EDM, CNC machining, and assembly. They work closely with their clients to understand their specific needs and develop solutions that meet or exceed their expectations.

If you are interested in learning more about EDM or any of the other services offered by Berkness Company, you can visit their Contact Us page on their website. Here, you can fill out a form to request more information or schedule a consultation with one of their experts. With their extensive experience and commitment to quality, Berkness Company is a trusted partner for businesses looking to improve their manufacturing processes and achieve their goals.


1. What is EDM and how does it work in manufacturing?
EDM stands for Electrical Discharge Machining, which is a manufacturing process that uses electrical sparks to erode material from a workpiece. The process involves a tool electrode and a workpiece submerged in dielectric fluid. When an electrical charge is applied to the electrode, it creates a spark that erodes the material from the workpiece. EDM is commonly used for machining complex shapes and hard materials that are difficult to machine with traditional methods.

2. What are the advantages of using EDM in manufacturing?
EDM offers several advantages over traditional machining methods, including the ability to machine complex shapes with high precision and accuracy. It is also capable of machining hard materials that are difficult to machine with other methods, such as titanium and hardened steel. Additionally, EDM does not produce any cutting forces, which reduces the risk of workpiece deformation or damage.

3. What are the different types of EDM and when should they be used?
There are several types of EDM, including wire EDM, sinker EDM, and hole drilling EDM. Wire EDM is used for cutting complex shapes and contours in thick materials, while sinker EDM is used for producing deep, narrow cavities in hard materials. Hole drilling EDM is used for producing small, deep holes in hard materials. The type of EDM used depends on the specific application and the material being machined.

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