What is Wire EDM called?

Wire EDM, also known as EDM, EDM etching or EDM, is a high-precision non-traditional machining method. It uses the principle of electric spark discharge to form a tiny discharge channel on the surface of the workpiece, and ablates the surface of the workpiece through discharge to achieve the purpose of precision machining. This machining method is widely used in mold manufacturing, aerospace, automobile manufacturing, medical equipment and other fields, with the advantages of high precision, high surface quality and no deformation.
1. The basic principle of wire EDM
wire EDM is to apply voltage between the electrode and the workpiece in the working fluid to form an electric field, so that electric spark discharge occurs between the electrode and the workpiece, thereby ablating the surface of the workpiece to achieve precision machining. This process is usually carried out in the working fluid, which not only plays a cooling role but also can wash away the debris generated during the machining process and maintain the discharge channel.

2. Process characteristics of wire EDM
High precision: wire EDM can achieve very high processing accuracy and can process small apertures and complex structures
High surface quality: Since no mechanical stress is caused during the processing, the processing surface quality is very high and no subsequent processing is required.
Wide applicability: wire EDM is suitable for various conductive materials, including metals, alloys, ceramics, etc., without hardness restrictions.
Non-contact processing: The electrode does not contact the workpiece during processing, which avoids tool wear and extends the life of the electrode.
Micro-machining can be achieved: Since the spark discharge area is very small, micro-machining can be achieved and the processing depth can be controlled.
No deformation: Since there is no mechanical stress during processing, it will not cause deformation of the workpiece, which is particularly suitable for processing parts with high requirements on shape and size.

3. Application fields of wire EDM
3.1 Mold manufacturing
In mold manufacturing, it is often necessary to process parts with complex shapes and high precision, and wire EDM can meet this demand. It is widely used in mold cavity processing, small aperture processing and shape finishing.
3.2 Aerospace manufacturing
The aerospace field has extremely high requirements for the precision of parts, and wire EDM can achieve complex structures and high-precision processing, so it is widely used in aerospace manufacturing. For example, in the manufacture of aircraft engine parts, wire EDM can be used for the processing of impellers, turbines and other parts.
3.3 Automobile manufacturing
Key parts such as engines, transmissions, and brake systems in automobile manufacturing usually require high-precision processing. Wire EDM can provide precise processing in the manufacture of these parts, ensuring automobile performance and safety.

3.4 Medical Device Manufacturing
Medical devices usually require tiny structures and high precision. The high precision of wire EDM makes it widely used in the manufacturing of medical devices. For example, wire EDM plays an important role in the manufacturing of medical devices such as artificial joints and dental implants.

4. Conclusion
Wire EDM plays an important role in modern manufacturing due to its high precision, high surface quality and wide applicability. Driven by the advancement of new technologies, the application of wire EDM will continue to expand, providing more reliable and efficient solutions for high-precision processing in various fields.