![](https://lms.su.edu.pk/storage/uploads/1588499291-chemical-milling.jpg)
Week 17: Advance Machining (Chemical milling, Chemical Blanking, Chemical Engraving)
Electrochemical machining (ECM)
It is a process uses electrical energy in combination with chemical energy to remove the material of workpiece. This works on the principle of reverse of electro plating