Annual report 2009 - Siempelkamp

Open-die forging
Open-die forging press for airplane structural parts
made of aluminum alloys
In the beginning of 2009 we received the order for an open-die
forging press with a press capacity of 25 MN for forging and
30 MN for upset forging. This press has been designed for the
open-die forging and bend-forming of aluminum alloys for the
aircraft industry. The 2-column open-die forging press will manufacture
fi nished forgings or semi-fi nished forgings to be used in
subsequent closed-die forging processes.
A technical highlight is that the central press cylinder is integrated
into the upper beam and the piston is mortised into the moving
beam. In connection with a guiding system in the x-axis, this
design guarantees exact guidance of the movable beam over the
entire press stroke even at high eccentric loads.
The advantages of this press design for the customer include
short delivery times, higher throughputs, improved quality of the
forgings and, at the same time, higher reliability.
25/30 MN open-die forging
press
Three open-die forging presses for China
In 2009 we installed an open-die forging press for titanium at
Goldsky Titanium Industry Technology & Co. in the Chinese Hunan
province. Because of the tight temperature range which has to be
kept when forging titanium, the Chinese customer made their
buying decision depend upon the high forging frequency of the
press. With the new machine that has a press capacity of 40/45
MN, Goldsky will forge rods, square bars, fl at bars, tool blocks,
fl anges, washers and pins. The press will start operation in mid-
2010. Key data include:
• specifi c control concept for hydraulics and electrical
engineering
• integrated control of forging manipulators which are working
synchronously with the press for perfect product handling
• visualization of process data during forging via Prod-IQ ® Metal
Forming
Two customers from China – Dongbei and Fushun – also decided
to order an open-die forging press each. Dongbei Special Steel
Group Co., Ltd. will receive a 35/40 MN design for which parts
were produced in 2009. This customer will use the press for ring
forging, round forging, and fl at forging. Designed as a 2-column
push-down press, this Siempelkamp product is able to perform
more than 100 strokes per minute.
The Siempelkamp scope of supply includes the construction of
the entire plant, manufacture and supply of all other components
and installation of the press in China. The installation is scheduled
to begin in mid-2010.
We received a new order from Fushun Special Steel Co., Ltd. in
July 2009: The company ordered a 2-column open-die forging
press with a press force of 31.5/35 MN. Also included in the
scope of supply are the hydraulics, electrical system, tie bars,
pistons and cylinders. In the Chinese province of Liaoning, the
press will forge parts made of carbon steel, stainless steel and