Surface Treatment Technologies, Inc. - 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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