In electron-beam machining (EBM), electrons are accelerated ..
In electron-beam machining (EBM), electrons are accelerated to a velocity nearly three-fourths that of light.

The process is performed in a vacuum chamber to reduce the scattering of electrons by gas molecules in the atmosphere.

The stream of electrons is directed against a precisely limited area of the workpiece;

on impact, the kinetic energy of the electrons is converted into thermal energy that melts and vaporizes the material to be removed, forming holes or cuts.
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Respected Sir! send me all topics of chameleon chips
1.advantages and disadvatages
2.applications (where it is uses)
3.figures of chameleonchips
4.history
5.types
6. technoliges of chameleonchips


I'm waiting for your valuable information.

thanking u sir,

Your's Sincearly,
A.S.Hemalatha.[i ....etc

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Hi,
My names is mcguire sanders and i need your help with a seminar report on lasers application in simple cd, dvd and more advance applications. ....etc

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ULTRASONIC SOUND WAVES –ITS APPLICATIONS IN SCIENCE



Ultrasonics is used in day to day life in many fields:
cleaning metal parts of instruments, medical equipments.
Flaw detection in Metallurgy, Railways, Iron ropes etc.,
In Scientific research .
In Medical field as sonogram of human body.


What is ultrasonics?


Ultrasound is the sound wave
with a frequency above the audible range of human hearing
i.e, : above 20 KHz
up to 5 MHz o ....etc

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Seminar report on ultrasonic machining 
For conducting a seminar and also ppt slide is required ....etc

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this is the best ppt.so i want to download it
plz help me.......................
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The unconventional method of several specific advantages over conventional methods of machining and these promise formidable tasks to be undertaken and set a new recording in the manufacturing technology. EDM is one such machining process, which has been immense help to the manufacturing process engineers to produce intricate shapes on any conducting metal and alloy irrespective of its hardness and toughness.


CLASSIFICATION

1. Contact initiated discharge
2. Spark initiated discharge
3. Electrolytic discharge

ADVANTAGES

1. The pr ....etc

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what are major applications of hot machining processes ....etc

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The recent increase in the use of hard, high strength and temperature resistant materials in engineering necessitated the development of newer machining techniques. Conventional machining or finishing methods are not readily applicable to the new materials like hastalloy, nitralloy, waspalloy, nimonics, carbides, ceramics etc.


Conventional machining processes when applied to these newer materials:
1. Are uneconomical,
2. Produce poor degree of surface finish and accuracy,
3. Produce some stress,
4. Highly insufficient.

Newer machin ....etc

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