Zone: Turning Machines

OVERVIEW: “Turning” defines the work that is traditionally done on a lathe. As lathes have grown in sophistication, some of these machines have been given different names. “Turning centers” is a term sometimes applied to machines with particularly sophisticated capabilities related to secondary spindles and/or rotating tools for milling and drilling. Another term, “turn/mill machines,” describes machines that can be thought of as being just as capable at milling and drilling parts as they are at turning. In turning, unlike in milling or drilling, the workpiece spins while the cutting tool does not. The cutting tool feeds along the length or diameter of the rotating part. The workpiece in turning can be held in a chuck or collet, to name two of the more common workholding methods. The turning machine may also include spindles for the cutting tools to accomplish non-turning operations such as milling and drilling. If this is the case, the machine stops the workpiece from spinning in order to perform these operations within the same machining cycle as the turning work. In fact, for some parts, the milling and drilling capabilities may be used so extensively that a non-turned, non-round part might also be produced on this type of machine. Lathes, turning centers and turn-mill machines can have horizontal or vertical spindles. Horizontal spindles are more common. If the machine has a vertical spindle, then the spindle may locate below or above the machine. If the workpiece rests on a table driven by the spindle, then this machine is generally called a vertical turret lathe, or VTL. If the workpiece is held from above by the vertical spindle, then this type of turning machine is generally called an inverted vertical lathe.

Featured Zone Content

Modular Automation Package for Turning Machines

Emco Maier has partnered with UltraTech Machinery to offer a modular robotic automation cell that provides flexible part load/unload for its turning machines....MORE

undefined

Hard Turning’s Strong Finish

With the right methodology in place, this alternative to grinding can often save money while adequately meeting surface finish requirements....MORE

The Upside of Vertical Turning

Vertical turning centers that use the main spindle to load and unload themselves are finding increasing acceptance as multitasking capabilities make them efficient processing centers for producing chucked parts....MORE

Video: Robot Flipping System for Turning

This video demonstrates how robot flipping station can serve the same purpose as a subspindle on a one-spindle multitasking center. ...MORE

Turning Center Enables Smooth, Heavy-Duty Cutting

MC Machinery’s LT-350 turning center is capable of machining hard materials for a range of applications. ...MORE

Product Slideshow: Turning

Lathes and turning machines designed for flexibility are highlighted in this month’s product spotlight. ...MORE

Absolute Tongtai Q5 CNC gang-type lathe

April 2015 Product Spotlight Slideshow: Turning

View turning centers, lathes, controls and more in this month’s product slideshow. ...MORE

Index MS22C-8 turning machine

Modular Turning Center Equipped with Eight Spindles

Index will demonstrate its MS22C-8, a modular eight-spindle automatic CNC turning machine suitable for fast machining, especially of complex parts. ...MORE

Loading the player ...