DEVICE FOR SURFACE SPARK EROSION Russian patent published in 2017 - IPC B23H7/26 

FIELD: electricity.

SUBSTANCE: device comprises a control handle, body and placed in a housing magnetic system consisting of a core with a coil and a movable armature with electrode holder for fixing the electrode. Wherein the control handle and the housing are connected by connection type dovetail groove dovetail positioned vertically on the side surface of the housing, the slide dovetail coupled to the control knob and is free to move in said groove, and the top and bottom of said groove set stops movement of said slide, the housing top is adapted to the load unit.

EFFECT: increase the uniformity of the applied layer thickness and stability of the current during the coating by eliminating the effect of forces on the device operator pressure.

3 dwg