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Electro-Spark Alloying

Electro-Spark Alloying: Technology Overview and Applications

Electro-Spark Alloying (ESA)

Electro-Spark AlloyingThe ESA process produces an electric arc through a moving electrode energized by a series of capacitors as it is short-circuited momentarily with the base material. During the generation of the arc, small particles of the electrode material are melted, accelerated through the arc, impacted against the base metal substrate, solidified rapidly, and built-up incrementally.

Robotic ESA system developed for U.S. Navy

  • micro arc-welding process
  • produces consistent, thin layers for coatings
  • ability to repair (overlay) damages substrates
  • true metallurgical bond with substrate
  • substrate remains at/near room temperature
  • produces higher surface hardness than competitive technologies
SELECT A PAGE FOR MORE ON ELECTRO-SPARK ALLOYING:
Electro-Spark Alloying
ESA Apparatus/Application
ESA Apparatus/Application (cont.)
Key Benefits of ESA Process
ESA Parameters
Injection Mold Repairs
Mold Repairs
ESA Commercial Applications
ESA Commercial Applications (cont.)
ESA Military Production Examples
ESA NASA Production Examples
Existing and Potential Markets
ESA Surfaces for Wide Range of Applications
ESA Electrode Types
ESA Die Protection
ESA Die Protection (cont.)
ESA Microstructural Features/Benefits
ESA Cutting Applications

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Click on a link below to see a video
demonstration of Electro-Spark Alloying

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