State advantages of CNC over NC.

1 Answer

Answer :

Advantages of CNC over NC

1. Complex machining operations can be easily done.

2. It requires less inspection. 3. It reduces scrap & waste.

4. It gives high production rate.

5. It reduces human error

6. It gives more operator safety.

7. It gives more operator efficiency.

8. Tool life gets increased.

9. Lead time is reduced.

10. In case of CNC lathe the carbide tip tools are used hence cutting speed faster than conventional lathe & also high feed rate.

11. CNC lathe movement is controlled by computer (which runs the program while in conventional lathe manual or auto feed is given. More flexibility available in CNC lathe.

12. CNC lathe can achieve higher accuracy with closed tolerance and very good surface finish as compared to conventional lathe.

13. Once the program is prepared and fed, less manual interference required in case of CNC lathe hence less skill operator can work on the machine.

14. Though the initial cost of CNC lathe is more but for mass production and accuracy and quality job CNC lathe has very good option than conventional lathe.

15. Program can be stored in the memory and can be used when ever required in batch production. Such facility is not available in conventional lathe.

16. Machines are comparatively small; need not required rigid foundations as conventional machines. Less vibration.

17. For superior repeatability, reduce machine down time as fast machining cycle.

18. Tool path simulation is available in CNC lathe which gives idea about job. This feature is not available in conventional machine 

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