NC and CNC machines and Control Programming
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20-10-2010, 10:28 AM



.ppt   9_CNC.ppt (Size: 893.5 KB / Downloads: 362)
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 link directly to controller)


1990-
DNC: external computer “drip feeds” control programmer to machine tool controller
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