Wedge rolling (cross wedge rolling) is our preferred process for the production of rotationally symmetrical workpieces with widely varying cross-sections. The blank is formed at 1100 °C to 1250 °C between two counter-rotating tools.
This process is particularly material-saving, as it enables “near-net-shape” production and massively reduces the amount of flash.
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Number Roller diameter |
3 machines 1,000 mm |
Special features:
With three Smeral wedge rolling machines, we produce blanks for gear shafts that are characterized by an excellent, uninterrupted grain flow.
Machine capacity: 3 machines with a roller diameter of 1000 mm.
Performance: Forming forces of up to 13,000 kN.
Dimensions: Suitable for workpieces up to a diameter of 100 mm.
The wedge rolling process used at Cotarko ensures an extremely homogeneous microstructure over the entire shaft length. A significant advantage for our customers is the low distortion during subsequent thermal treatment (hardening) after mechanical processing, which significantly increases process reliability in your production.
