2. INTRODUCTION
Well I am Abhishek Kumar.And I'm from
Karnal.Regarding my educatation
qualification,I am doing b.tech. from necs
group of institution. Which is affiliated by
kurukshetra university.And today my seminar
topics is electro chemical machining process.
4. Definition of ECM Process
Electrochemical machining (ECM) is a method of
removing metal by an electrochemical process. It is
normally used for mass production and is used for
working extremely hard materials or materials that are
difficult to machine using conventional methods.
5. Working Of ECM Process
In the ECM process, a cathode (tool) is advanced into
an anode (workpiece). The pressurized electrolyte is
injected at a set temperature to the area being cut. The
feed rate is the same as the rate of "liquefication" of the
material. The gap between the tool and the workpiece
varies within 80–800 micrometers (0.003–0.030 in.)
6. As electrons cross the gap, material from the work piece is
dissolved, as the tool forms the desired shape in the work piece.
The electrolytic fluid carries away the metal hydroxide formed in the
process.
7.
8. Advantage Of ECM Process
There are following advantage of ecm
process which is discussed below.
★ Tool does not contact the workpiece
so tool life is increase.
★There is less tool wear in ecm.
9. ★less heat no stress are produce.
★This method works even on very hard and brittle work
piece
.
10. Disadvantage Of ECM
Process
★the acidic electrolyte poses the risk of
corrosion to tool,workpiece and equipment.
★Only electrically conductive materials can
be machined.
11. Application Of ECM process
★Die sinking operation.
★Drilling jet engine turbines blades.
★Multiple hole drilling.
★jet engines.
