Difference of CNC Milling and CNC Turning Machines

Custom machine shops offer notable benefits to businesses and individuals. The skills of its craftsmen that make fabricated replacement parts and customized designs more available as well as performing repair and maintenance on different pieces for equipment and machines of all types.

For a more automated process there is the CNC or Computer Numerical Control which make lathes, drill presses and screw machines automated. These tools are widely used in the machining processes which make metal cutting more accurate and precise. Through CNC milling and CNC turning, patterns and details to metal components which are generally impossible by hand are made possible.

So, what is CNC milling and CNC turning? How are they different?

CNC Milling

CNC milling makes use of commands which are also known as G-codes. These codes are programmed into the machine through a computer software program. Every code commands the machine to perform specific function. Upon encoding of these programs, the mill drills and turns along axes to modify the metal components matching the dimensions encoded in the computer.

In terms of operation, CNC milling machines maybe controlled by either manual override or computer. By manual override, the machine operator has to either slow down or speed up or if needed- tweak the process. Through computer program, the machine cuts the metal components with higher precision.  Products that are processes using CNC milling machines include fixtures, valves, linkages, pulleys and arms. In many times, these parts are used to replace the plastic parts originally made by manufacturers and not only for repair but for durability, too.

CNC Turning

CNC turning is another popular process in automated machine processes. It involves computer-controlled machines that produce different end product. It also uses a single-point cutting tool inserted in a parallel manner to the component or material that will be modified. The material is then rotated in a varying speed and the tool traverses the 2 motion axis to make cylindrical cuts with precise depths and diameters.

This process is use on external materials to produce tubes like decorative brass shoulder bolt or even nautical drive shaft. Of course, it can also be use on the inside of the material to make tubular cavity.

As with milling, CNC turning is now automated which benefit many by allowing the production of parts or designs that are not easily made in manual manner. Certain requirements and skills are required from those who intend to work for this industry.