Modern Machine Shop

AUG 2018

Modern Machine Shop is focused on all aspects of metalworking technology - Providing the new product technologies; process solutions; supplier listings; business management; networking; and event information that companies need to be competitive.

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MMS AUGUST 2018 168 mmsonline.com IMTS 2018 Turning Centers Swiss-Type Lathe Enables Easier Guide Bushing Change-Over Absolute Machine Tools is displaying Nexturn's SA-32PYII Swiss-type lathe, a 32-mm machine with an exchangeable rotary synchronous guide bushing. This model is said to enable change-over from guide bush- ing to non-guide bushing operation depending on the application and material. Changing to non-guide-bush- ing mode enables the use of non-ground material and reduces remnant length. The machine, which uses a FANUC control, features as many as eight total axes (Z1, X1, Y1, Z2, X2, Y2, C1, C2) and accommodates as many as 25 tools. The bar- stock diameter ranges to 32 mm on the main spindle and subspindle, and the turning length ranges to 210 mm (8") with the guide bushing installed and 60 mm (2.36") without the guide bushing. The machine is built for rigidity, accuracy, reliability and ease of us, the company says. The rigid, one-piece cast-iron machine bed has been designed using FEM software. Pre-tensioned ballscrews and LM guides are said to enhance accuracy, and high-speed positioning of 1,260"/min. reduces cycle times. The main spindle is a 10-hp, 8,000-rpm, built-in motor spindle. The full C axis on both main and subspin- dles with 0.001-degree position and pneumatic disc- brake clamping are said to increase rigidity for milling operations. A 5-hp, integral-motor-synchronous subspin- dle enables simultaneous front and back working. Live tools accommodating 3 hp and 6,000 rpm on the cross mill unit and 1.3 hp and 5,000 rpm on the back- end face tools are said to enhance drilling and milling ability. ER-16 collets for the live tools are said to ensure rigidity during cutting. | Absolute Machine Tools Inc. | South, Level 3, Booth 338536 Two-Saddle Turning Center for Large Energy, Aerospace Parts Okuma America's Multus U5000 two-saddle CNC lathe handles large parts for the energy and aerospace indus- tries. The machine is said to provide a sturdy platform for machining large, process-intensive parts. The company says a highly rigid traveling column enables powerful cutting along the entire Y axis for flexible CNC machining from all directions. Larger bed lengths, subspindle and lower turret configurations are available. The Multus U500 is designed to turn or mill challenging materials for a range of large-scale applications with optimum efficiency. The machine is available with the company's Thermo-Friendly concept, which is said to provide long- term, stable machining accuracy via structural design and thermal deformation control. Its OSP-P300SA control reduces keyboard operations by 50 percent, shortens setup time, and maximizes uptime with its collision avoidance system, according to the company. The machine features easy tool loading from the machine front, improved spindle access for faster setup times and smooth chip discharge for efficient chip removal. At the show, the machine will be equipped with a W axis and big-bore spindle, and will be shown cutting a wind turbine crankshaft. | Okuma America Corp. | South, Level 3, Booth 338500

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