Electrospark deposition technology (ESD)
Nov 23, 2022| Electrospark deposition technology (ESD)
electro spark deposition technology is the high energy stored in the power supply, instantaneous high-frequency release between the metal electrode (anode) and the metal base material (cathode), through the air ionization between the electrode material and the base material, forming a channel so that the surface of the base material instantaneous high temperature, high-pressure micro area. At the same time, the ionic electrode material melts into the base metal matrix under the action of a micro-electric field, forming metallurgical bonding. The electric spark deposition process is between welding and splashing of elements into the process, after electro spark deposition technology processing of metal deposits with high hardness and good high-temperature resistance, corrosion resistance and wear resistance, and simple equipment, widely used, the combination of sediments and substrate is very strong, generally will not occur off, not annealing or deformation after processing, The thickness of the deposited layer is easy to control and the operation method is easy to master. The main disadvantage is the lack of theoretical support, the operation has not been mechanized and automated.
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