Computer Numerical Control machines are automated machines, which are controlled by computers executing pre-programmed sequences of controlled commands. CNC machines are essentially the opposite of “old-school” devices that are manually controlled by hand wheels or levers, or mechanically automated by cams alone. It increases the accuracy, reduces the time of production etc,. When compared with conventional machinery. The user can create a program according to codes and standards and directly feed inside the machine. There are two types of lathe, especially CNC Turning center or CNC lathe CNC vertical machining/milling center.
Early in the process, engineers create a computer-aided design (CAD) drawing of the part to be manufactured, then translate the drawing into G-code. The program is loaded onto the MCU and a human operator performs a test run without the raw material in place, to ensure proper positioning and performance. This step is important because incorrect speed or positioning can damage both the machine and the part. CNC is considered to provide more precision, complexity and repeatability than is possible with manual machining. Other benefits include greater accuracy, speed and flexibility, as well as capabilities such as contour machining, which allows milling of contoured shapes, including those produced in 3D designs.
