Page 30 - MetalForming March 2017

Magnetic Clamping
times/shift on each press, so any improvement in our die-change process has a significant ripple effect on pressroom productivity.”
The plant’s pressroom houses six mechanical stamping presses, ranging from 165 to 400 tons. All but one are hand fed with blanks—some laser-cut on the firm’s laser-cutting machine. The one coil-fed press is the plant’s newest, an Aida 200-metric-ton servo press (84- by 33-in. bed) acquired in 2014. It’s a workhorse, tasked with run- ning some 80 different dies, half of which run at least once per month. And, the press often tackles the plant’s most challenging parts.
The servo press came equipped with the latest in quick-die-change tech- nology: a permanent-electromagnet- ic-die-clamping system (a Stamp Tec setup from Tecnomagnete).
“The servo press replaced a 33-yr.- old coil-fed press,” Messner says, “and now gives us improved ram-speed
One of six stamping presses supplying stamped parts to CNH assembly lines is this 200-met- ric-ton Aida servo press, equipped with a Tecnomagnete magnetic die-clamping system. Green lights on the system’s control panel (top right) indicate proper clamping. Here, the servo press forms bearing hous- ings from 0.157-in.-thick hot-rolled Type A1011 steel at 53 strokes/min.
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28 MetalForming/March 2017
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