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Doosan Machine Tools America presents the PUMA 1000/M, which was specifically developed for industries like oil and aviation that have the need to machine large-diameter parts. The latest model in the PUMA 1000 series incorporates a highly rigid live tool turret and machines large rings, flanges, shafts and pipes.
The PUMA 1000/M provides a spacious working area with a maximum machining diameter of 1000mm (39 in.) and a maximum machining length of 2040mm (80 in.). Most notably, the wide spindle through-hole of up to 560mm (22 in.) enables the processing of long pipes and rods required for offshore plants and oil exploration.
Equipped with a two-stage gearbox featuring a high-output spindle with a maximum output of 75kW (100 hp.), the PUMA 1000/M has the strongest cutting capacity in its class. It is also equipped with a 250mm (10 in.) thick turret with a more robust design than the previous model. The adoption of a highly reliable servo motor for the turret reduces vibration during turning and milling, maximizing stability during heavy-duty cutting.
Massive front and rear chucks stabilize long workpieces for precision while a special creeping feature feeds the tailstock center into the work piece smoothly. Unlike some competitive models, the PUMA 1000B/MB incorporates special covers at the rear to keep the work area clear of coolant and chips.
To further enhance user convenience, the PUMA 1000/M provides a programmable tailstock with a built-in dead center and user-friendly Easy Operation Package (EOP) smart software program and EZ functions as standard features. Another standard feature is arbitrary speed threading, which allows the operator to change the speed during the threading cuts to eliminate chatter. Additional options can be configured to suit the customer's unique applications, such as twin chucking, vibration damping, long boring bar, automatic tool setter and linear scale.
“The new PUMA 1000/M is a heavy-duty, big bore turning center that can handle the largest workpieces with a combination of stability, power and control,” states Jim Shiner, director of sales and marketing at Doosan Machine Tools America. “It is already following in the footsteps of other PUMA models, which have a global reputation for producing high quality parts with maximum productivity and profitability.”
Related Glossary Terms
- boring
boring
Enlarging a hole that already has been drilled or cored. Generally, it is an operation of truing the previously drilled hole with a single-point, lathe-type tool. Boring is essentially internal turning, in that usually a single-point cutting tool forms the internal shape. Some tools are available with two cutting edges to balance cutting forces.
- boring bar
boring bar
Essentially a cantilever beam that holds one or more cutting tools in position during a boring operation. Can be held stationary and moved axially while the workpiece revolves around it, or revolved and moved axially while the workpiece is held stationary, or a combination of these actions. Installed on milling, drilling and boring machines, as well as lathes and machining centers.
- chatter
chatter
Condition of vibration involving the machine, workpiece and cutting tool. Once this condition arises, it is often self-sustaining until the problem is corrected. Chatter can be identified when lines or grooves appear at regular intervals in the workpiece. These lines or grooves are caused by the teeth of the cutter as they vibrate in and out of the workpiece and their spacing depends on the frequency of vibration.
- coolant
coolant
Fluid that reduces temperature buildup at the tool/workpiece interface during machining. Normally takes the form of a liquid such as soluble or chemical mixtures (semisynthetic, synthetic) but can be pressurized air or other gas. Because of water’s ability to absorb great quantities of heat, it is widely used as a coolant and vehicle for various cutting compounds, with the water-to-compound ratio varying with the machining task. See cutting fluid; semisynthetic cutting fluid; soluble-oil cutting fluid; synthetic cutting fluid.
- gang cutting ( milling)
gang cutting ( milling)
Machining with several cutters mounted on a single arbor, generally for simultaneous cutting.
- milling
milling
Machining operation in which metal or other material is removed by applying power to a rotating cutter. In vertical milling, the cutting tool is mounted vertically on the spindle. In horizontal milling, the cutting tool is mounted horizontally, either directly on the spindle or on an arbor. Horizontal milling is further broken down into conventional milling, where the cutter rotates opposite the direction of feed, or “up” into the workpiece; and climb milling, where the cutter rotates in the direction of feed, or “down” into the workpiece. Milling operations include plane or surface milling, endmilling, facemilling, angle milling, form milling and profiling.
- threading
threading
Process of both external (e.g., thread milling) and internal (e.g., tapping, thread milling) cutting, turning and rolling of threads into particular material. Standardized specifications are available to determine the desired results of the threading process. Numerous thread-series designations are written for specific applications. Threading often is performed on a lathe. Specifications such as thread height are critical in determining the strength of the threads. The material used is taken into consideration in determining the expected results of any particular application for that threaded piece. In external threading, a calculated depth is required as well as a particular angle to the cut. To perform internal threading, the exact diameter to bore the hole is critical before threading. The threads are distinguished from one another by the amount of tolerance and/or allowance that is specified. See turning.
- through-hole
through-hole
Hole or cavity cut in a solid shape that connects with other holes or extends all the way through the workpiece.
- turning
turning
Workpiece is held in a chuck, mounted on a face plate or secured between centers and rotated while a cutting tool, normally a single-point tool, is fed into it along its periphery or across its end or face. Takes the form of straight turning (cutting along the periphery of the workpiece); taper turning (creating a taper); step turning (turning different-size diameters on the same work); chamfering (beveling an edge or shoulder); facing (cutting on an end); turning threads (usually external but can be internal); roughing (high-volume metal removal); and finishing (final light cuts). Performed on lathes, turning centers, chucking machines, automatic screw machines and similar machines.
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