ELECTROCHEMICAL MACHINING METHOD USING CURRENT DENSITY CONTROL

摘要

PROBLEM TO BE SOLVED: To provide an electrochemical machining method using a current density control to carry out electrochemical machining while adjusting an amount of current applied to obtain an object to be machined having a constant diameter change, by storing an negative electrode rod of a carbon component to which a negative voltage is applied and an object to be machined to which a positive voltage is applied in an electrolyte contained in a container having a fixed size, and by offsetting a shape effect by which the lower end part of the storage part of the object to be machined is more speedily machined than the upper end part against diffusion layer effect by which the side part is more speedily machined than the longitudinal lower end part. SOLUTION: Ultrasonic cleaning is applied to the object to be machined by using acetone and distilled water in order to remove foreign matter sticking to its surface. The feature of this electrochemical machining method is that the electrolyte is potassium hydroxide solution having the number of moles of 4-6 Mol.