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Electro-Spark Alloying

Electro-Spark Alloying: Technology Overview and Applications

Key Benefits of the ESA Process

  • metallurgical bond
  • low heat input eliminates distortion or metallurgical changes
    in the substrate
  • special properties and amorphous layers possible through
    rapid solidification
  • coatings typically exhibit higher load tolerance, lower wear rate, and
    lower corrosion rate than similar materials applied by other processes
  • little or no substrate preparation required
  • little or no surface finishing required
  • environmentally benign
  • reproducible process
  • operators easily trained
  • portable process and equipment
  • easily automated
  • applicable to I.D. surfaces (down to 3/8 “ ID) and complex shapes
  • can apply most electrically conductive materials (metals & cermets)

 

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