Electrochemical Grinding (ECG)

Process Definition & Working Principle

Electrochemical Grinding (ECG) is an advanced hybrid non-traditional manufacturing process that integrates electrochemical anodic dissolution (accounting for approximately 90% to 95% of the material removal) with conventional mechanical abrasive action (constituting the remaining 5% to 10%). The process relies on the fundamental principles of electrolysis governed by Faraday’s laws, tailored for precision machining.

The system constitutes a closed-loop electrochemical cell consisting of:

Kinematics, Axes, & Machine Configuration

The design of an Electrochemical Grinding (ECG) machine combines the mechanical precision of a conventional grinding machine with the corrosion resistance and electrical systems of electrochemical machining.

1. Structural Design & Materials: All structural components exposed to the aggressive electrolyte (work cabinet, coordinate table, protective covers) are manufactured from AISI 316L stainless steel, titanium, or coated with high-performance chemical-resistant epoxy resins. Linear guides and ball screws are hermetically sealed using bellows and continuously lubricated with rust-preventive oils.