3 Fundamentals of press design

Presses used for solid forming
duction despite the high initial investment costs involved. By using
semi-automatic and automatic die resetting and die change systems, setup
times can be substantially reduced, meaning that even medium
batch sizes of 20,000 to 40,000 parts can be economically manufactured
(cf. Fig. 3.4.5). The presses are used at nominal press forces of between
1,000 and 6,300 kN for wire diameters ranging from 10 to 36 mm.
Horizontal presses – single-station with knuckle-joint drive
These press systems are used mainly for the production of extruded
parts made of aluminium and aluminium alloys (Fig. 6.8.7): These
machines are also ideally suited for pre-forming steel slugs. The presses
are fully automated and make use of simple, cam-controlled pushers for
part feed. The horizontal design, simple part feed and discharge and the
superior forming characteristics of aluminium permit high stroking
rages of up to 300/min. Compared with vertical presses, substantially
higher stroking rates also result when forming steel. Nominal press
forces range between 1,500 and 12,000 kN.
punch
slide
Fig. 6.8.7 Single-station horizontal press with knuckle-joint drive
(nominal press forces 1,500 to 12,000 kN)
Metal Forming Handbook / Schuler (c) Springer-Verlag Berlin Heidelberg 1998
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