Zone: Turn/Mill Machines

Turn, Mill And Laser-Harden In One Setup

Integral laser unitsA new turn-mill platform combines turning and four-axis milling with integral laser hardening and laser welding in one workpiece setup. This enables shops to bring often-outsourced laser treatment in-house to reduce lead times.

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Video: Side Turn-Milling Of A Massive Crankshaft
1/5/2009 Modern Machine Shop
This video footage showing the machining of a massive crankshaft suggests some of the possibilities of turn-milling. Not all shops realize possibilities such as this even on their own smaller-scale turn-mill equipment.
CAM And Turn/Mill: Making More With Less
11/7/2008 Production Machining
A shift in thinking has led to an overhaul of this company’s machine tools and production processes. The result has been a significant improvement in capacity that has allowed more parts to be brought in-house and more profits at the end of the day.
Turning Center Categorization
11/4/2008 Production Machining
 With the number of turning centers on the market, matching a machine with the right capabilities for a shop's needs can affect price and performance. Thsi article looks at three levels of turning center capabilities and how each plays out various application specifications.  
Bryco Before and After
9/26/2008 Modern Machine Shop
Within a two-month period, this Chicago-area contract shop reorganized the shopfloor, implemented new procedures and eliminated employee toolboxes. Here are the benefits the shop has seen.
Turning Is Optional
5/29/2008 Modern Machine Shop
The part requires only milling and drilling, but it is still run on a lathe. Except for the cutoff tool, all of the turret positions on this lathe hold rotating tools. In other words, turning is not essential for using a lathe effectively. This application illustrates the productive possibilities of a modern turn-mill machine.

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Turn/Mill Machines

Turn/Mill Machines are machines that are capable of both rotating-workpiece operations (turning) and rotating-tool operations (namely milling and drilling). Generally these machines are based on lathes. The machine is typically recognizable as a horizontal or vertical lathe, with spindles for milling and drilling simply available at some or all of the tool positions. With a machine such as this, a part requiring a variety of operations can be machined in one setup, particularly if a subspindle allows the part to be passed from one spindle to another during machining. More recently introduced turn/mill machines depart from the lathe design into something much more like a hybrid machine—combining a lathe’s chucks and spindles with the travels and milling power of a machining center. One of the most significant issues with these types of machines in general is figuring out just which parts to run on them. Many shops have discovered that, even though these machines developed from lathes, they are not necessarily limited to round parts. Various non-round parts can be machined on the same platform as efficiently, if not more efficiently, than on a machining center.

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