Page 39 - MetalForming-Sep-2018-issue

of nonsymmetrical parts and round cups, and on cushion pulsation to improve drawability.
Another exciting and relatively recent development: use of servo press- es for hot stamping, to be addressed by Scott Braito, director of sales for Seyi Presses. Seyi recently installed a servo press at the R&D center of a stam- per in Japan to prove out the hot- stamping process, and currently is installing a production servo press (1200-ton, four-point) for hot stamping at a Tier One automotive stamper in Alabama.
“While hot stamping has long been relegated to hydraulic presses,” Braito explains, “metalformers have begun to understand benefits of servo- mechanical presses for this work. The presses can stop at bottom and hold the material under load (typically for 5 to 10 sec. during hot stamping) to provide heat dissipation as well as to overcome any springback issues. Then we can, due to the design of the press
drive system, provide enough power to break the ram free at the bottom of the stroke and quickly complete the cycle. Since we can move the ram down and up more quickly than with a hydraulic press, cycle times can notably improve. I’ll illustrate this using the work done in Japan (noted above) and in our factory.”
Wait, There’s More
Also on the agenda:
• Developments in Motors, Drives and Controls Impacting the Pressroom Tim Barry, metalforming business development manager at Siemens Industry, will describe new press pow- ertrain and control technology that makes retrofits, or even new press pur-
chase, perfect business sense.
• Tales from the Road—Real-World
Pressroom Applications
Todd Wenzel, president of equip-
ment distributor TCR, will describe recent installations of servo-based equipment—presses, feeds, transfer
systems and more—and explain how the technology pays off with improved productivity and quality.
• Automatic In-Die Part-Quality Monitoring and Tool Adjustment
James Barrett, president of Link Systems, will explain how in-die part measurement, die-adjustment and part-tracking technology can result not only in 100-percent verification of critical part features, but also in significantly increased machine uti- lization, accurate production and scrap rates, and more reliable die protection.
“The unique capabilities of servo presses enable more and better appli- cations of this technology,” Barrett says.
The PMA/MetalForming magazine Servo Technology Experience takes place September 25-26 in Grand Rapids, MI, immediately following the PMA West Michigan Suppliers Night. Learn more and register to attend by visiting www.metalformingmagazine.com/servo.
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