Numerical control (NC) and computer numerical control (CNC) machines are both instrumental in fabricating high accuracy products within a shorter timeframe. Let’s dive into the key differences between these two types of machines.
Numerical control (NC) and computer numerical control (CNC) machines are both instrumental in fabricating high accuracy products within a shorter timeframe. Let’s dive into the key differences between these two types of machines.
Numerical Control (NC) pertains to the automation of machine tools through the use of a computer. These NC machines operate based on a series of instructions, which come in the form of numbers, letters, and symbols.
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A CNC machine, on the other hand, processes a section of the material to meet certain specifications. It does so by following a pre-set series of instructions, eliminating the need for manual oversight during the machining process.
S.No | NC | CNC |
---|---|---|
1. | NC stands for Numerical Control | CNC stands for Computer Numerical Control. |
2. | NC machines utilize punch tapes and punch cards for input. | CNC machines typically use keyboards for input. |
3. | Altering the program in an NC machine is quite challenging. | Modifying the program in a CNC machine is relatively straightforward. |
4. | NC machines do not have memory to store instructions. | CNC machines have memory for instruction storage. |
5. | NC machines are generally less costly than CNC machines. | CNC machines tend to be more expensive than NC machines. |
6. | Maintenance costs for NC machines are comparatively low. | Maintenance costs for CNC machines can be high. |
7. | NC machines offer less flexibility. | CNC machines offer more flexibility than NC machines. |
8. | NC machines provide average accuracy. | CNC machines are known for their high accuracy. |
9. | NC machines can be more time-consuming. | CNC machines are typically less time-consuming. |
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