CNC Lathe Machining Processes

Turning: A cutting tool is mounted on a moving slide. As the workpiece spins, the cutting tool is pressed against it. The slide moves up and down along the workpiece, as well as away from or closer to the center line. Turning processes are usually accessed when large amounts of material need to be quickly removed from the workpiece. Facing: In facing, a single-point tool moves along the workpiece, removing a thinner layer of material. This process produces flat, smooth surfaces at the ends of the workpiece. Thread Cutting: Here, the tool moves along the outside of a workpiece to create threads in the outer surface. These threads may be cut to any length or pitch. Grooving: The tool moves along the workpiece, gradually cutting a groove into it which matches the tool’s width. Multiple passes may be required to achieve a wider groove or add various geometries. Drilling: This process uses a drill to make holes in the workpiece Boring: Boring is often used after drilling to either make the hole larger, or to achieve more precise dimensions. It can also be used to achieve features such as tapers, steps, and contours. Reaming: Also employed after drilling, reaming removes a precise amount of material in order to achieve a more accurate diameter and a smooth internal finish. Tapping: This cuts a thread inside the hole, so a screw can be threaded into it.