Bulletin 2/2010 - Siempelkamp NIS

Record project: Alcoa‘s closed-die forging press:
A landmark will
once again be
updated!
This fall the last component parts for a Siempelkamp reference project
set sail to Alcoa Forging & Extrusions. In 2009 Alcoa ordered a total of
14 castings and several custom components for the refurbishment of one
of the world‘s largest closed-die forging presses located in Cleveland,
Ohio. The corresponding engineering was commissioned back in 2008.
After the retrofi tting, the 50,000-ton press (450 MN) will be the most
up-to-date and effi cient forging press in its class! For Siempelkamp
Foundry this order represents a world record, for the entire Group it is
shared work on a ‘Super Giant’.
The cast is completed – relaxed faces
By Ralf Griesche
SIEMPELKAMP | FOUNDRY/MACHINERY AND PLANTS
World record cast: 283 t of molten iron
Alcoa Forging & Extrusions manufactures structural parts for
the aircraft industry with the 50,000-ton closed-die forging
press. The US specialist for forging and extrusions has been
operating the giant press since May 1955. Due to the large press
capacity and its importance in the American aircraft industry, this
closed-die forging press is a ‘National Historic Mechanical
Engineering Landmark’ in the United States. The US-based
American Society of Mechanical Engineers bestows international
engineering landmarks of special importance with this title.
Along with the Alcoa press, other engineering marvels including