1. SNS COLLEGE OF ENGINEERING, COIMBATORE- 641 107
SNS COLLEGE OF ENGINEERING, COIMBATORE   DEPARTMENT OF MECHANICAL ENGINEERING  
INTRODUCTION TO ELECTRICAL ENERGY BASED MACHINING PROCESS Prepared by B.BALAMURALI AP/MECH
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2. List the name of the mechanical energy based machining processes.
RECAP
List the name of the mechanical energy based machining processes.
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3. ELECTRICAL ENERGY BASED PROCESSES
Electrical energy is directly used to cut the material to get the final shape and size.
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4. ELECTRICAL ENERGY BASED PROCESSES
Electric Discharge Machining
Wire cut Electro Discharge Machining
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5. ELECTRICAL ENERGY BASED PROCESSES
Electrical discharge machining is also called as spark erosion machining or electro erosion machining.
The metal is removed by producing powerful electric spark discharge between the tool (cathode) and the work material (anode).
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6. ACTIVITY
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7. ELECTRICAL ENERGY BASED PROCESSES
The whole workpiece is not submerged in dielectric medium instead, the working zone alone is supplied with a co-axial jet of dielectric medium.
The whole workpiece is submerged in dielectric medium.
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8. DIELECTRIC FLUID
Dielectric Fluid is a medium that does not conduct electricity.
The tool and workpiece are submerged in a dielectric fluid medium.
The dielectric fluids generally used are petroleum based hydrocarbon fluids, paraffin, white spirit, kerosene, mineral oil or mixture of these.
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9. DIELECTRIC FLUID
It must not be hazardous to operators or corrosive to equipment.
It acts as an insulating medium.
It cools the spark region.
It carries away the eroded metal particles along with it.
It maintains a constant resistance across the gap.
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10. MCQ Find out the odd one EDM ECM USM WCEDM
Find the Cheapest dielectric fluid available
hydrocarbon fluids
paraffin
white spirit
kerosene
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11. THANK YOU
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