Contact type array tiny pit electrochemical machining method

Abstract

The invention provides a contact type array tiny pit electrochemical machining method and belongs to the technical field of electrochemical machining. The contact type array tiny pit electrochemical machining method comprises obtaining photoresist film patterns required to be performed electrolysis from a workpiece positive pole surface through a photographing masking mode; enabling a workpiece positive pole and a tool negative pole to be respectively connected with a positive pole and a negative pole of a power source; immersing the workpiece positive pole in the electrolyte; enabling the tool negative pole to be in contact with a photoresist film on the workpiece positive pole; switching on the power source to perform electrochemical machining. According to the contact type array tiny pit electrochemical machining method, the tool negative pole is in contact with the photoresist film on the workpiece positive pole, so that electric filed distribution in a machining area can be improved, the electric field intensity on the periphery and in the middle of the machining area tends to be consistent, and the array tiny pit electrochemical machining accuracy and locality are obviously improved.

Description

technical field [0001] The invention provides a method for contact-type electrolytic machining of micro-pit arrays, which belongs to the technical field of electrolytic machining. Background technique [0002] The surface wear of mechanical parts is one of the main forms of failure of mechanical parts, which not only wastes a lot of energy and resources, but also leads to frequent replacement and maintenance of parts, which accelerates the scrapping of equipment, indirectly and directly causes a lot of economic losses, and the earth affected the development of the national economy. According to estimates, the power consumed by dry friction of textile machinery is 85% of its total power. Friction losses account for 48% of a car's power consumption, much higher than the 17% used to maintain cruise and the 35% used to accelerate. According to statistics, the annual loss of friction and wear in European and American countries accounts for about 2% to 7% of the entire gross nat...

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Problems solved by technology

[0006] The purpose of the present invention is to address the shortcomings of the current electrolytic machining array micro-pit scale processing accuracy and poor localization, and propose a method for contact electrolytic machining array micro-pit

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