This document discusses non-conventional machining processes. It explains that non-conventional machining uses a form of energy rather than direct contact to remove material from a workpiece. Some examples of energy-based processes include chemical, thermal, electrical, and mechanical. Electrochemical machining is described as a process that uses electrical current to remove material from the anode workpiece. Specific electrochemical machining processes like electrochemical machining, electrochemical deburring, and electrochemical grinding are also summarized.

1. Topic

2. CECOS University of IT &
Emerging Sciences Peshawar
Group Members
 Jamshid khan
 Hafeez ullah
 Asad jahangir
 Gohar ali
 Faisal zayad

3. Non-Conventional
 An unconventional machining process
(or non-traditional machining process) is
a special type of machining process in
which there is no direct contact between
the tool and the work piece.
In unconventional machining, a form of
energy is used to remove unwanted
material from a given work piece

4. Nontraditional Processes by
Type of Energy Used
 Chemical
 Thermal
 Electrical
 Mechanical

5. Electrochemical Machining
Processes:
 ECM removes material at the anode
(work piece) using current controlled
electrochemical process. By feeding a
shaped cathode (tool or electrode)
towards the work piece, the reverse
shape of the tool is copied to the work
piece.

7. Electrochemical Machining
Processes:
1. Electrochemical machining (ECM)
2. Electrochemical debarring (ECD)
3. Electrochemical grinding (ECG)

8. Electrochemical machining (ECM

9. Electrochemical debarring (ECD)
 In Electrochemical Deburring (ECD),
burrs are dissolved from metallic
workpieces electrochemically and are
flushed away by pressurized electrolyte.

10. Electrochemical grinding (ECG)
 ECG that combines electrolytic activity
with the physical removal of material by
means of charged grinding wheels.

11. Advantages
 No mechanical force
 There is no cutting forces therefore
 clamping is not required except for
controlled motion of the work piece.
 There is no heat affected zone.
 Very accurate.
 Relatively fast

12. Economics
 The process is economical when a
large number of complex identical
products need to be made
 Several tools could be connected to a
cassette to make many cavities
simultaneously.

13. Thanks for your
attention.