Electrical Discharge Machining by Himanshu Vaid

Post on 13-Feb-2017

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Transcript of Electrical Discharge Machining by Himanshu Vaid

MEWAR UNIVERSITY

The Process of grinding Grinding – a chip

removal process that uses an individual abrasive grain as the cutting tool.

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.

Grinding FormulaL = (Dd)

Undeformed length = (Diameter)(depth)

Grinding Almost any material can be ground -

aluminum, steel, ceramics, even diamond or glass.

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

• Uses an electrode that sends out the sparks which erodes the metal

• Uses dielectric fluids for cooling and flushing of the material

• EDM wire • Wire is brass,

copper or tungsten• With wire edm you

can basically cut out any design

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