Case History

Electrochemical Grinding, or ECG, is a variation of ECM (Electrochemical Machining) that combines electrolytic activity with the physical removal of material by means of charged grinding wheels. Electrochemical Grinding (ECG) can produce burr free and stress free parts without heat or other metallurgical damage caused by mechanical grinding, eliminating the need for secondary machining operations. Like ECM, Electrochemical Grinding (ECG) generates little or no heat that can distort delicate components.

What are the criteria for selecting Electrochemical Grinding (ECG) as a process?
Electrochemical Grinding (ECG) can process any conductive material that is electrochemically reactive. The most common reason customers choose ELECTROCHEMICAL GRINDING (ECG) is for the burr free quality of the cut. If a part is difficult or costly to deburr, then ELECTROCHEMICAL GRINDING (ECG) is the best option. Materials that are difficult to machine by conventional methods, that work harden easily or are subject to heat damage are also good candidates for the stress free and no heat characteristics of ELECTROCHEMICAL GRINDING (ECG). The stress free cutting capability of the process also make it ideal for thin wall and delicate parts.

The real value of Electrochemical Grinding (ECG) is in metalworking applications that are too difficult or time-consuming for traditional mechanical methods (milling, turning, grinding, deburring etc.). It is also effective when compared to non-traditional machining processes such as wire and sinker EDM. ELECTROCHEMICAL GRINDING (ECG) is almost always more cost effective than EDM.


  • Improved wheel life
  • Burr free
  • No work hardening
  • Stress free
  • Better finish
  • No cracking
  • Less frequent wheel dressing
  • No metallurgical damage from heat
  • Faster for tough materials
  • No wheel loading or glazing
  • More precise tolerances