EDM machine tools are special processing machines that use the heat energy generated by electric spark discharge to process conductive materials. EDM equipment has many processing advantages. Its main advantages are as follows:
1. The hardness of the processed material is not limited
A significant advantage of EDM machines is their ability to process very hard materials. In traditional machining, the hardness of the cutting tool must be higher than the hardness of the material being machined in order to perform effective machining. For example, when processing materials such as hardened steel and cemented carbide, it is difficult to cut them with ordinary tools. Electrospark machining is based on the thermal effect generated by electric spark discharge to erode materials. It does not rely on cutting force. Therefore, no matter how hard the material is, as long as it is a conductive material, it can be processed. This gives it an irreplaceable advantage in the processing of high-hardness materials in the fields of mold manufacturing, aerospace, etc.
2. High processing precision
This machine tool is capable of high-precision machining. It can process parts with complex shapes and high dimensional accuracy requirements. Through precise electrode design and control of the CNC system, the electrode can move according to the pre-programmed trajectory. For example, when machining tiny holes, narrow grooves or complex curved surfaces, EDM machines can accurately control the discharge position and the amount of etching to achieve very high dimensional and shape accuracy. In the electronics industry, EDM machines can perform well on precision metal parts in electronic products such as mobile phones and computers, such as tiny gaps on metal casings and high-precision plug-ins on motherboards.
3. No cutting force during machining
The EDM process does not have the cutting forces found in traditional machining. In traditional machining (such as turning, milling, etc.), cutting force may cause problems such as workpiece deformation and vibration. These problems will be more serious, especially when processing thin-walled and easily deformed parts. Electrospark machining uses electric spark discharge to remove materials, which does not generate cutting force and therefore does not cause deformation of the workpiece. For example, when processing some thin-walled structural parts in the aerospace field or processing precision surgical instruments in the medical device field, this feature of no cutting force can effectively ensure the processing quality of parts.
4. Complicated shapes can be processed
It is possible to process parts and cavities with complex shapes. By making electrodes corresponding to the required shapes, the shape of the electrode is used to replicate the shape of the workpiece. For example, in mold manufacturing, the shape of the cavity of injection molds, die-casting molds, etc. may be very complex, including various curved surfaces, concave and convex structures, etc. The EDM machine tool can accurately etch material on the workpiece according to the shape of the electrode, process complex cavities, and perform minor repairs and adjustments to the mold, which is very beneficial for manufacturing molds and parts with complex shapes.
5. Good processing surface quality
The surface quality of parts processed by the EDM machine tool is good. Since the material is etched by melting and vaporization during the processing, and the working fluid has a certain cooling and flushing effect on the processing surface, the processed surface is relatively smooth and has a low roughness. At the same time, the surface quality can be further controlled by adjusting the processing parameters (such as pulse width, pulse interval, etc.). In some industries with high requirements for surface quality, such as medical equipment and precision electronics, this good surface quality can meet the requirements of the product.
6. High processing flexibility
The EDM machine tool has high flexibility in processing methods. It can perform a variety of processing, such as perforation processing, cavity processing, wire cutting processing, etc. By replacing different electrodes or adjusting processing parameters, it can adapt to different processing tasks. For example, in mold manufacturing, it can be used to process the mold cavity and to perform small hole perforation processing on the mold; in the electronics industry, it can also perform wire cutting processing on metal parts. This flexibility enables it to be widely used in many different industries and processing scenarios.
If you have any questions about EDM equipment, you can communicate with the Shanghai ANTISHICNC team at any time, and we will provide you with free technical support. If you have any questions, please feel free to contact the Shanghai ANTISHICNC technical team! Email information: contact@antsmachine.com
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