Spark machining at Batchforce

Spark machining (EDM): ultimate precision for difficult materials and complex geometries

Spark machining, also known as Electrical Discharge Machining (EDM), is an essential technique for machining hard materials and creating complex shapes that are difficult to achieve with conventional machining techniques. This method is especially valuable in industries such as medical technology and laboratory equipment, where precision and maintaining material integrity are critical.

Benefits of spark machining (EDM)

• High precision: Spark machining offers exceptional accuracy, ideal for machining hard materials and creating complex internal geometries.
• Material compatibility: Suitable for a wide range of materials such as carbide, hardened tool steel, and conductive ceramics, making the process versatile.
• Applications: Spark machining is often used in the medical field and for laboratory instruments, where accuracy and reliability are essential.
• Reducing material wastage: This technique minimizes the risk of material wastage, improving the performance and durability of the final product.

Disadvantages of spark machining (EDM)

• Slow removal rate: Spark machining is slower in material removal compared to traditional machining techniques, making it less suitable for large productions.
• Limitations in materials: Although it can process a wide range of conductive materials, it is not suitable for non-conductive materials such as some plastics.
• Higher cost: The equipment and accuracy required make spark machining more expensive than other machining techniques, especially for small productions.

Types of spark machining (EDM).

1. Wire EDM
   Wire EDM is suitable for cutting parts up to 500 mm in thickness, with precision down to ±0.002 mm. This makes it ideal for manufacturing precise and complex shapes.
2. Sinker EDM
   Sinker EDM is perfect for creating complex cavities and shapes in hard materials, with a precision of up to ±0.005 mm. This type of EDM is often used to produce dies and shapes with detailed geometries.
3. Small Hole EDM Drilling
   This technique is specially designed for drilling very small holes with high precision. It is particularly useful in applications where traditional drilling is not effective.
4. Die-Sinking EDM
   Die-Sinking EDM, also called Sinker EDM, is ideal for making intricate shapes and profiles in hard materials, especially in industries where high accuracy is required.