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Electrochemical etching

Marking process where an electrolyte etches the surface not covered by a protective flat.

Beskrivning
Illustration of Electrochemical etching

The process

A template [1] with the planned labeling pattern is created and placed tightly against the surface of the workpiece, which means that only the portion of the surface to be marked is reached by the processing fluid. The workpiece and the stamp [2] is electrically charged after which the stamp pad [3] is soaked with electrolyte. The stamp is pressed against the stencil and the current conducted through the stamp through the die into the workpiece cut its surface by etching.

Synonyms

Märkning
Electrochemical etching
Process films
Advantages and disadvantages
In comparison with alternative methods
Better control of thickness
less tension
Inexpensive equipment
Portable equipment
Requires difficult fixtures to insulate electrical line from the etchant
New layers of masking agents required for each new label
Cost of masking agents
Only conductive material may be labeled