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Title: CAM Systems CNC Machine
Page Link: CAM Systems CNC Machine -
Posted By: seminar class
Created at: Friday 04th of March 2011 03:22:08 PM
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CAM Systems & CNC Machine
History

1955 - John Parsons and US Air Force define a need to develop a machine tool capable of machining complex and close tolerance aircraft parts with the same quality time after time (repeatability). MIT is the subcontractor and builds the machine for the project
1959 - MIT announces Automatic Programmed Tools (APT) programming language
1960 - Direct Numerical Control (DNC). This eliminates paper tape punch programs and allows programmers to send files directly to machine tools
19 ....etc

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Title: Estun servo system application in CNC system
Page Link: Estun servo system application in CNC system -
Posted By: computer girl
Created at: Monday 04th of June 2012 07:32:38 PM
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Estun servo system’ application in CNC system



Servo system is a kind of electrical transmission system for the mechanical
movement. Its control objective is servo motor, and the core unit, servo drive. Servo
system’ functions are instructed with the automatic control theory and its mechanical
execution is through power transformation module of electric power and electronics
system. For the whole CNC system, servo system receives instructions of moving
distances and speeds sent by CNC. And then when these in ....etc

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Title: NC and CNC machines and Control Programming ppt
Page Link: NC and CNC machines and Control Programming ppt -
Posted By: seminar details
Created at: Friday 08th of June 2012 03:23:34 PM
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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 s ....etc

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Title: CNC Technology
Page Link: CNC Technology -
Posted By: seminar addict
Created at: Friday 27th of January 2012 02:33:21 PM
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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


[b ....etc

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Title: Adaptive control system with knowledge sever in Intellegent CNC system
Page Link: Adaptive control system with knowledge sever in Intellegent CNC system -
Posted By: Computer Science Clay
Created at: Friday 07th of August 2009 07:36:56 PM
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In an ideal scenario of intelligent machine tools the human mechanist was almost replaced by the controller. During the last decade many efforts have been made to get closer to this ideal scenario, but the way of information processing within the CNC did not change too much.The paper summarizes the requirements of an intelligent CNC evaluating the advancement of technology in this field using different adaptive control systems. In this paper a low cost concept for artificial intelligence named Knowledge Server for Controllers (KSC) is introduce ....etc

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Title: NC and CNC machines and Control Programming
Page Link: NC and CNC machines and Control Programming -
Posted By: project report helper
Created at: Wednesday 20th of October 2010 12:58:38 PM
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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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Title: STUDY ON PRINCIPLE AND OPERATIONS OF CNC MACHINES IN VARIOUS FABRICATION PROCESSES
Page Link: STUDY ON PRINCIPLE AND OPERATIONS OF CNC MACHINES IN VARIOUS FABRICATION PROCESSES -
Posted By: smart paper boy
Created at: Friday 29th of July 2011 11:55:07 AM
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PRESENTED BY
SUBHENDU KUMAR BEHERA


INTRODUCTION –
BHEL was established more than 50 years ago when its first plant was setup in Bhopal ushering in the indigenous Heavy Electrical Equipment Industry in India. A dream which has been more than realized with a well recognized track record of performance it has been earning profits continuously since 1971-72 and achieved a turnover of Rs 2,658 crore for the year 2007-08, showing a growth of 17 per cent over the previous year. Bharat Heavy Electricals Limited is ....etc

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Title: NC CNC DNC Machine
Page Link: NC CNC DNC Machine -
Posted By: seminar class
Created at: Wednesday 23rd of March 2011 02:41:21 PM
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NC, CNC, DNC Machine
Numerical Control (NC) refers to the method of controlling the manufacturing operation by means
of directly inserted coded numerical instructions into the machine tool.
Numerical control (NC) refers to the automation of machine tools that are operated by abstractly programmed commands encoded on a storage medium, as opposed to manually controlled via handwheels or levers, or mechanically automated via cams alone.
The major advantages of NC over conventional methods of machine control are as ....etc

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Title: cnc machine full report
Page Link: cnc machine full report -
Posted By: seminar topics
Created at: Saturday 27th of March 2010 07:53:15 AM
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Diploma in Engineering
Mechanical Engineering
A
Seminar Report
On
CNC Machine
Submitted by
Sudhir S. Shinde
Under the Guidance of
Mr. Abhinav Phadke
To,
Mod “ Tech College of engineering
Tilak Maharashtra University
Gultekdi, Pune “ 37
Year 2009-2010
Tilak Maharashtra University, Pune
Mod “ Tech College of engineering

INTRODUCTION
In Industry it is not efficient or profitable to make everyday products by hand. On a CNC machine it is possible to make hundreds or even thousands of the same items in a day. Fi ....etc

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Title: CNC MACHINES
Page Link: CNC MACHINES -
Posted By: seminar surveyer
Created at: Tuesday 04th of January 2011 03:49:33 PM
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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 ....etc

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