3 Fundamentals of press design

510 Solid forming (Forging)
Fig. 6.8.4 Multiple-station press with modified knuckle-joint top drive
(nominal press force 10,000kN, four stations, loading system and transfer feed)
Multiple-station presses with eccentric drive
The main field of application for these presses with nominal press
forces from 6,300 kN lies in warm forming (680 to 820 °C) and automated
flashless forging (Fig. 6.8.5). Due to their large slide stroke of 630
to 800 mm, these presses are also ideally suited for cold forming of
long, shaft-type pressed parts. The slide is guided in the same gib system
as illustrated in Fig. 3.1.7. This guidance concept also permits narrow
gib clearances in warm and hot forming applications, meaning
that it is no longer necessary to provide for an additional clearance to
compensate for the unavoidable thermal expansion of the slide.
Metal Forming Handbook / Schuler (c) Springer-Verlag Berlin Heidelberg 1998