EDM Machining

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Electrical Discharge Machining (EDM machining) is a controlled metal-removal process that is used to remove metal by means of electric spark erosion. In this spark machining process an electric spark is used as the cutting tool to cut (erode) the workpiece to produce the finished part to the desired shape.

1. An electrical spark is created between an electrode and a workpiece.The spark is visible evidence of the flow of electricity.
2. This electric spark produces intense heat with temperatures reaching 8000 to 12000 degree Celsius, melting almost anything.
3. The spark is very carefully controlled and localized so that it only affects the surface of the material.
4. The metal-removal process is performed by applying a pulsating (ON/OFF) electrical charge of high-frequency current through the electrode to the workpiece.
5. This removes (erodes) very tiny pieces of metal from the workpiece at a controlled rate.
6. The wire-cut EDM machining does not require a special shaped electrode, instead it uses a continuous-traveling vertical wire under tension as the electrode.
7. The electrode in wire-cut EDM is about as thick as a small diameter needle whose path is controlled by the machine computer to produce the shape required.

Advantages of Spark Machining
1. Any material that is electrically conductive can be cut using the electrical discharge machining process.
2. Hardened workpieces can be machined eliminating the deformation caused by heat treatment.
3. X, Y, and Z axes movements allow for the programming of complex profiles using simple electrodes.
4. Complex dies sections and molds can be produced accurately, faster, and at lower costs.
5. The EDM machining is burr-free.
6. Thin fragile sections such as webs or fins can be easily machined without deforming the part。

Sinker EDM (Sinker Electrical Discharge Machining)

Wire EDM(Wire Cut Electrical Discharge Machining)

We are a professional supplier of EDM machining in China, offering a reliable and low cost spark machining solution. We also provide the following services:
1. Plastic Molding, Metal Casting, Sheet Metal Fabrication, CNC Machining, Welding Fabrication, Rolling/Bending/Roll Forming Service
2. Heat Treatment:
Hardening, Annealing, Normalizing, Stress Relieving, Softening, and Graphitization
3. Surface Treatment
Metal Polishing (Metal Mirror Polished, Brushed Metal Finishing), Shot Blasting, Sandblasting, Spray Painting, Powder Coating, Thermal Spraying, Anodizing, Chrome Plating, Nickel Electroplating / Electroless Nickel Plating, Hot-Dip Galvanizing, Copper Plating, Phosphorizing, Electrophoresis and Passivation
4. Assembly
Stud, Steel Sall & Helicoil Inserts, O-ring, Gasket
5. Packing
6. Testing Report, Quality Control Report
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