DILLINGER/SIEMPELKAMP VALVES
The Nanshan group
commissioned Siempelkamp to construct a 500 MN large- format press with a sliding table
forging press ever built up to now in Germany for the production of near-net forged components for the Airbus 380 long-haul airliner. In addition to turbine disks, these also include so-called “inner wings”, which connect the wings to the fuselage, and must therefore assure not only high-precision forming but also ultra-high strength. Near-net production of these large-format components from the extremely difficult-to-form materials, and thus the meeting of the plane maker’s stringent requirements, necessitates the use of a press that sets new standards in press force and format.
Presses show their capabilities
For Christoph Schmitz, head of the Mechanical Design group at Siempelkamp, this 50,000
Siempelkamp set a world record with the casting of 320 tonnes of molten iron for the two lower beams of this mega-press.
tonne press is entirely in line with the trend: “Manufacturers are demanding drop-forging presses with ever great force, press area and precision - and with the highest possible cycle rates”. Siempelkamp also designed the new press for China under his leadership. Just a few of Nanshan’s technical specifications, such as passage height, the unobstructed clearance of the side spacings, the passage height of the pressure distribution plates and the 4 x 7 metre dimensions of the press table indicate the size of this machine. The intended application - the shaping of structural components from titanium, titanium-aluminium or Inconel at 500 meganewton and a tolerance of 0.05 millimetre - put the details into the challenge involved. Almost routine for Christoph Schmitz, Siempelkamp
having only recently shipped a 450 and a 400 meganewton press. “There’s no need to invent a new press for ‘only’ 10,000 tonnes of extra press force!”, he laughs. “The design principle - a robust press frame consisting of the lower beam, lateral supports,
upper beam and tie rods – is tailored to meet the loads specified by the customer”, the university- trained engineer continues. Such individual design makes every XXL press a one-off created on the basis of close coordination and cooperation between the
The lower beam being lifted from the mould at Siempelkamp‘s group- owned foundry.
All components are cleansed of fouling, such as sand, in Siempelkamp‘s finishing shop.
Large-format machining of the components at Siempelkamp.
www.internationalmetaltube.com IMT December 2018 25
© Siempelkamp
© Siempelkamp
© Siempelkamp
© Siempelkamp
© Siempelkamp
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