The Cutting EdgeBy:

Matthew Anderson

Why are NC and CNC important in our world today?

What Is NC? NC means (Numerical Control) Invented 1940’s 1950’s by John T.

Parson Programmed - Punch cards

- Paper tape- Binary - Point-to-point

Purpose of NC? Air Force

Repeatability

Productivity

Cut Costs

Industrial Factors of NC

Changed the landscape of industry

Expanded manufacturing

Demand for skilled workers

What is CNC?

Computerized Numerical Control

Invented by MIT accredited to John

Parson

Programmed- Computer on machine

- M-code G-code

Purpose of CNC Efficent

- productivity Effective

- Cost

- precision- repeatibility

CNC continued..

Fig. CNC HASS Mill Fig. MCU (Micro-Computer Unit)

Industrial Factors of CNC

Change the landscape of industry

Demand for skilled labor

Expanded manufacturing

capabilities

Use of computers

Skills needed for NC & CNC Proficient in Math Classes in NC or

CNC operations/programs

Limits of tooling Read and interpret

technical drawings Ability to monitor

operation

Advantages of NC & CNC

NC Increased

capabilities More productive

than manual Decrease human

error

CNC Greater operator

efficiency programs can be

stored in the MCU Increase

productivity Reduction of

human error

Disadvantages of NC & CNC

NC Time it takes to

program Programs cannot

be changed (paper tape)

No complex shapes

Lose of excess material

CNC Increase in

electrical maintenance

Retraining of labor Loss of excess

material Cost of machines Viruses possible

Conclusion catalyst for technological advances large amount of what we do or own

is closely related modernize our society opened the door for future

advancement