Devices and methods for marking conductive objects

An apparatus comprising:

• a housing;
• a current controller disposed within the housing, the current controller electrically connected to an electrode and a target surface connector, the current controller configured to be electrically connected to a power source;
• a pad coupled to the housing and electrically connected to the electrode, the pad configured to retain an electrolytic fluid;
• a cover removably coupled to the housing, the cover configured to retain an insulated stencil over an outer surface of the pad, the insulated stencil defining at least one permeable portion therein;
• a conduit attached to the housing, the conduit defining a pathway through which the electrolytic fluid can be conveyed to the pad;
• a reservoir attached to the housing and connected to the conduit, the reservoir configured to contain the electrolytic fluid;
• and
• a valve configured to selectively permit the electrolytic fluid to flow from the reservoir to the pad at a pre-determined flow rate.

A method for marking on a target surface, the method comprising:

• covering an outer surface of a pad configured to retain an electrolytic fluid with an insulated stencil so that a portion of the pad adjoins at least one permeable portion defined in the insulated stencil;
• coupling the insulated stencil to the outer surface of the pad;
• placing the at least one permeable portion of the insulated stencil in contact with the target surface;
• electrically connecting a target surface connector to the target surface;
• providing the electrolytic fluid to the pad;
• and
• actuating a current controller within the housing to produce an electrical current arrangement through the target surface between the target surface connector and the electrolytic fluid provided to the pad, the current controller configured to apply a customized electric potential between the electrode and the target surface connector to produce the electric current arrangement between the electrode and the target surface connector during a selected type of electrochemical marking, the customized electric potential determined according to the selected type of the electrochemical marking and according to parameters for the selected type of the electrochemical marking, the parameters including at least one of a type of material of the target surface, a type of electrolytic fluid, a flow rate of the electrolytic fluid, a configuration for the electric current arrangement, and a comparison of an actual electric current sensed during the electrochemical marking in comparison with the electric current arrangement.