CNC Technology


ABOUT BHEL

BHEL is the largest engineering and manufacturing enterprise in India in the energy-related / infrastructure sector, today. BHEL was established more than 40 years ago, ushering in the indigenous Heavy Electrical Equipment industry in India a dream that has been more than realized with a well recognized track record of performance. The company has been earning profits continuously since 1971-72.and paying dividends

PRESENT POSITION OF B.H.E.L.[ ....etc

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NC and CNC machines and Control Programming



Motivation and uses

To manufacture complex curved geometries in 2D or 3D was extremely expensive by mechanical means (which usually would require complex jigs to control the cutter motions)

Machining components with repeatable accuracy

Advantages of CNC

Easier to program;
- Easy storage of existing programs;
- Easy to change a program
- Avoids human errors
- NC machines are safer to operate
- Complex geometry is ....etc

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qwertyuiopasdfghjklzxcvbnmqwertyuiopasdfghjkl
qwertyuiopasdfghjklzxcvbnmqwertyuiopasdfghjkl ....etc

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thanks for proceeding.please send me ppts of cnc turning programming
thanks for proceedings please send me ppts of cnc turning
thanks for proceeding.please send me ppts of cnc turning programming thanks for proceedings please send me ppts of cnc turning ....etc

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NC and CNC machines and Control Programming

History of CNC

1949
US Air Force asks MIT to develop a numerically controlled machine.

1952
Prototype NC machine demonstrated (punched tape input)

1980-
CNC machines (computer used to page link directly to controller)

1990-
DNC: external computer drip feeds control programmer to machine tool controller ....etc

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Althogh both have many similarities still they have some differences. Some of them are :-

Turret lathe:-

1. Turret tool head is directly fitted on the saddle and both of them appear like one unit

2. Saddle is moved to provide feed to the tool.

3. It is difficult to move the saddle for feed.

4. As the saddle can be moved along the entire length of the bed, it is suitable for longer workpieces.

5. To index the turret tool head, a clamping lever is released and the turret is rotated manually.

6. Limit dogs are used to control ....etc

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sir,i am student of electronics & communication.
please can you give me seminar ppt on cnc machine. ....etc

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To get full information or details of free download pdf for fabrication of coolant filtration system for cnc lathe please have a look on the pages

http://onyxonfinal-year-final-semester-diploma-projects.htm

if you again feel trouble on free download pdf for fabrication of coolant filtration system for cnc lathe please reply in that page and ask specific fields in free download pdf for fabrication of coolant filtration system for cnc lathe ....etc

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to get information about the topic cutting parameters in cnc turning using full factorial method related topic rfer the page link bellow

http://seminarsprojects.net/Thread-optimization-of-machining-parameters-in-cnc-turning-of-martensitic-stainless-steel

http://seminarsprojects.net/Thread-investigation-of-cutting-parameters-of-surface-roughness-for-a-non-ferrous-material

http://seminarsprojects.net/Thread-cutting-parameters-optimization-for-the-wire-edm-process-using-continuous-ants-colo

http://seminarsprojects.net/Thread-optimization-of ....etc

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Presented by
Mr. Prateek Singh
(Vocational Trainee-BHEL Bhopal)



INDEX

DEVELOPMENT OF CNC MACHINES

CNC SYSTEM

PROGRAMMABLE LOGIC CONTROLER

SERVO DRIVES

CNC RETROFITTING

MAINTENANCE MANAGEMENT

DEVELOPMENT OF CNC MACHINES
EVOLUTION OF THE CNC MACHINES

CNC MACHINES DEVELOPMENTS

BENEFITS OF CNC MACHINES

EVOLUTION OF THE CNC MACHINES

The first CNC Machine was built in 1949 at MIT ,USA for manufacturing of the Air Craft components having intricate profiles using ....etc

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