CNC Turning is a manufacturing process in which bars of material are held in a chuck and rotated while a tool is fed to the piece to remove material to create the desired shape. A turret (shown center), with tooling attached is programmed to move to the bar of raw material and remove material to create the programmed result. This is also called “subtraction machining” since it involves material removal.
Turning is the name given to the manufacturing process where bars of raw material is held and rotated at high speed. As the piece rotates, a cutting tool is fed to the piece, which works at the material, cutting away to create the desired shape. Unlike other cutting styles where the cutting tools themselves move and spin, in this case, the workpiece is rotated during the cutting process. CNC Turning is commonly used for cylindrical shaped workpieces, however, it can be used for square or hexagonal-shaped raw materials. The workpiece is held in place by a ‘chuck’. The' chuck' spins at varying RPMs (rotations per minute).