Machining is not one operation, rather it is an umbrella term for a range of different services. These can include a single milling, lathing, threading, drilling or turning operation or a combination of these methods to create the desired shape. Often parts are made completely through machining operations as it can be more cost effective than custom extrusions.
Turning is defined as a process that removes part of the workpiece to create the shape. It is done by rotating the workpiece, which stays on the same plane, while the cutting tool moves linearly along the rotating workpiece. As such, it is used to give an exterior shape to the workpiece while boring is used to create a cavity or shape to the interior of the workpiece.
Precision Operations
Today, when it comes to a precision turning operation, CNC or Computer Numerical Control will be used in all top machining shops. This allows a computer model to control the equipment, creating identical components to the model with each piece produced.
This eliminates even slight variations that can be found when turning is done manually, plus it also eliminates variations when jigs are used that gradually become less precise over time and use.
With a CNC turning operation, the original drawing can be maintained as a computer file, ensuring that any future production runs from a single part to large volume runes will always be identical not just to each other, but to the drawing and every part machined before.
Options in Turning
While turning may be a very traditional form of shaping a workpiece, it can produce several complex shapes. With CNC turning precision shapes such as tapers, spheres, grooving, and knurling can all be completed with accuracy and to the specifications required for the part or component.
