The invention provides an auxiliary
anode mask micro electrolytic
machining array micro-pit
system and method, and belongs to the technical field of micro electrolytic
machining. The
system comprises an upper clamp (1), a lower clamp (7), a tool
cathode (2) which is arranged on the upper clamp (1), a tool
anode (6) which is arranged on the lower clamp (7),
mask plates (5) which are arranged on the surface of the tool
anode (6) and of group drilling structures, and auxiliary anodes (4) which are fixed on the lower clamp (7) and surround edges of the tool anode (6); an
electrolyte flow pass is formed between the tool
cathode (2) and the tool anode (6), and the
system further comprises a main power supply (9) and an auxiliary power supply (8), wherein the positive pole of the main power supply (9) and the positive pole of the auxiliary power supple (8) are connected with the tool anode (6) and the auxiliary anode (4) respectively, and the negative pole of the main power supply (9) and the negative pole of the auxiliary power supple (8) are both connected with the tool
cathode (2). The auxiliary anode
mask micro electrolytic
machining array micro-pit system and a method are characterized in that an auxiliary
power supply voltage is smaller than a main
power supply voltage, and a
potential difference exists between the auxiliary
power supply voltage and the main power supply
voltage, so that the
electric current density in all mask holes of the work piece surface is consistent, and the dimensional homogeneity of array micro-pits is improved.