How does the thermal energy of EDM DIE SINKING MACHINE manifest itself in material melting and vaporization?

The thermal energy of EDM Die Sinking Machine is significantly reflected in the melting and vaporization of materials. This process is the core mechanism of EDM, and its manifestation can be summarized as follows:
When the gap between the tool electrode and the workpiece electrode is broken down by the pulse voltage, a large amount of heat energy is instantly concentrated in the discharge channel, and the temperature can be as high as 8000~12000°C. This high-temperature energy is enough to cause the workpiece material in the discharge area to locally and rapidly heat up.
Under the action of high temperature, the local material on the surface of the workpiece will reach the melting point and start to melt. The molten material forms a tiny pool in preparation for the subsequent vaporization process.
Material vaporization
As the discharge process continues, the temperature of the material in the molten pool continues to rise. When the temperature exceeds the boiling point of the material, the partially melted material will begin to vaporize and evaporate into metal vapor.

The vaporized metal vapor expands rapidly in the discharge channel and generates powerful explosive force. This explosive force throws metal particles into the working fluid, causing them to quickly cool and solidify into small solid particles.
Comprehensive reflection
Since the entire machining process is achieved through the action of thermal energy, there is no need for direct contact between the electrode and the workpiece, thus avoiding the problems of cutting force and thermal stress in traditional machining.
Although the amount of metal removed by each discharge is extremely small, the action of thousands of pulse discharges per second makes the material removal process efficient and precise.
By precisely controlling discharge parameters and electrode shape, high-precision machining and superior surface finish can be achieved. The melting and vaporization process takes place in an extremely small area, helping to maintain the shape and dimensional accuracy of the workpiece.
The effect of thermal energy is not limited by the hardness and toughness of the material, allowing the EDM Die Sinking Machine to process a variety of conductive materials, including special materials with high melting point, high hardness, high strength, high purity, and high toughness.
The thermal energy effect of the EDM Die Sinking Machine in terms of material melting and vaporization is manifested as a process in which high-temperature energy concentration leads to rapid local melting of the material and further vaporization and evaporation of part of the material into metal vapor. This process is key to achieving high precision, high quality and adaptability to a wide range of materials.