Modern Machine Shop

DEC 2016

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136 MMS December 2016 mmsonline.com MODERN EQUIPMENT REVIEW Spotlight: Machining Centers The Bridgeport V480 and V710 vertical machining centers from Hardinge are suitable for applications ranging from job shop work to high-production manufacturing with fast rapid traverse rates, high axis and spindle acceleration/deceleration, and a powerful control. These VMCs provide a 40-taper, 10,000-rpm, 10-hp spindle; 33 foot-pounds of spindle torque; a 20-station swing-arm automatic toolchanger; and a manual pulse generator (MPG). Designed for flexibility and high throughput, the V480/V710 platform features a compact footprint and rugged construction. COMPACT VMCS BENEFIT JOB SHOPS, OEMS s y s t e m . T h e m a c h i n e s a r e o f f e r e d w i t h a Mitsubishi M70V type A control. Navi-Mill and embedded Ethernet are also standard. Some available options include 12,000- and 15,000-rpm spindles, CTS-Deublin rotar y union, 280 -psi through-spindle coolant, air blast, chip conveyors, spindle chiller, and fourth-axis pre-wiring. Hardinge Inc., call 800-843-8801 or visit hardinge.com. FIVE-A XIS VMC PROCESSES COMPLEX PARTS IN ALUMINUM, DIE-CAST, TITANIUM Makino's DA300 full five-axis vertical machining center is said to provide the speed, precision and flexibility necessary for complex part applications. Single-setup machining, multi-side accessibility and full-contouring capability enable quick and efficient work on a variety of complex production part applications common to industrial hydraulic and pneumatics elements; optical, electrical and semiconductor components; medical and dental products; die-cast parts; automotive components; and aerospace parts. The integral 340 × 300-mm worktable accom- modates workpiece sizes ranging to 450 mm in diameter and 400 mm tall, and weighing as much as 250 kg. The machine provides X-, Y- and Z-axis travels measuring 450 × 620 × 500 mm with feed rates ranging to 60,000 mm/min. The direct-drive, motor-driven A-axis table offers 150 degrees (+30 to -120) of tilt capability at 100 rpm. The DA300 is equipped with a 20,000-rpm, HSK-A63 spindle, delivering the speed and flex- ibility to tackle high-speed, productive machining of various workpiece materials including aluminum, die-cast, steel and titanium. According to the company, acceleration and deceleration to and from full speed can be accomplished in 1.5 sec., reducing chip-to-chip times. Additionally, the machine's standard configuration includes a Axis travels on the V480 measure 18.9" × 15.75" × 16.93" (480 × 400 × 430 mm). Axis travels on the V710 measure 27.87" × 15.75" × 16.93" (708 × 400 × 430 mm). Both machines provide rapid traverse rates of 1,417 ipm on all three axes and acceleration rates of 6, 4.6 and 3.75 m/sec.² in the X, Y and Z axes, respectively. Features include a 10.4" color LCD monitor, a circular flushing ring and a coolant chip flush

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