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CNC vs VMC: Understanding the Key Differences

                     CNC means Computer Numerical Control and VMC means Verticle Machining Center. There is no difference between CNC and VMC , because VMC is a type of CNC . But here we see the difference between CNC Lathe and VMC /CNC Milling.



CNC vs VMC: Understanding the Key Differences

CNC vs VMC: Understanding the Key Differences
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CNC Machine [Lathe] VMC machine [Milling]
1)  Main application of CNC is turning . 1) Main application of VMC is milling.
2)There is two axis  X & Z 2) There is three axis .
3) Workpiece is rotate . 3) Tool is rotate .
4) Tool axis in CNC is X & Z . 4) But in VMC there is only one tool axis i.e. Z
5) In CNC we take geometrical offset of X & Z axis . 5) In VMC we take geometrical offset of only  Z axis .
6) Offset selection & tool position : T0606 Where, first 06 – tool no  , second 06 – offset no 6) Offset selection & tool position :  G43 H2 Z20 Where, G43- tool offset command , H2 – tool offset no , Z20 –tool position .
7) Tool rotation is not possible . 7) In VMC tool is rotate .
8) Tool hold in turret . 8) Tool hold in tool magazine .
9) During cutting tool feed support provide by turret 9) During cutting tool feed support provide by   spindle .
10) There is single work station due to no need of work coordinate . 10) There multiple work station is possible . So need of work coordinate G54 –G59
11) Workpiece hold in chuck . 11) Workpiece hold in vise or fixture



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CNC Machine

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