Electrical Discharge Machining by Himanshu Vaid

1. MEWAR UNIVERSITY

2. The Process of grinding
 Grinding – a chip
removal process
that uses an
individual abrasive
grain as the cutting
tool.

3. Grinding Wheels
•The surface of
grinding wheels are
made up of these
grains.
•Grains have random
irregular shapes that
are located at the
edge of the grinding
wheels.

4. Grinding Formula
L = (Dd)
Undeformed length = (Diameter)(depth)

5. Grinding
 Almost any material can be ground -
aluminum, steel, ceramics, even diamond
or glass.

6. Electrical discharge machining
 Erosion of metals by
spark discharge
 Capacitor discharge
is between 50 and
380 V
 EDM can be used
on any material that
is an electrical
conductor

7. • Uses an
electrode that
sends out the
sparks which
erodes the
metal
• Uses dielectric
fluids for cooling
and flushing of
the material

9. • EDM wire
• Wire is brass,
copper or tungsten
• With wire edm you
can basically cut out
any design

11. THANK YOU