CNC machining is a subtractive manufacturing process in which computerized controls are used to operate the tools to create a product by removing layers of material from the workpiece. CNC machining technology works well on materials like glass, foam, plastics, composites, etc. CNC is ideal for low to medium volume production and produces high-precision and high accuracy parts cost-effectively. CNC stands for computer numerical control.
There are three different types of CNC machining operations:
• CNC drilling: Drilling is the act of making holes in unbroken surfaces with a hand drill machine. In manufacturing, CNC drilling is done on CNC machines and lathes. CNC drilling machines consist of head, spindle, chuck, platform, drill bit.
• CNC milling: Milling is the process of cutting and drilling a material like wood or metal. A milling machine uses a rotating cylindrical tool called a milling cutter. CNC milling machines can have more than two axes.
• CNC turning : Turning is a subtractive process. CNC turning is a manufacturing process in which material bars are held in a chuck and rotated while a tool is fed to the piece to remove material to create the shape.