CIRP Encyclopedia of Production Engineering

Living Edition
| Editors: The International Academy for Production Engineering, Sami Chatti, Tullio Tolio

Forge Rolling

  • Bernd-Arno Behrens
Living reference work entry

Later version available View entry history




Forge rolling (also called roll forging or reducer rolling) is a longitudinal rolling process to reduce the cross-sectional area of heated bars or billets by leading them between two contrary rotating roll segments, which have at least one forming groove in it. Roll-forged workpieces feature varying cross sections along the rolling direction. Material distribution is carried out by exchangeable roll segments. Multiple corresponding rolling segment pairs are combined in a forming sequence. The steps of the sequence are called “pass.” A variation of the segments allows for a different material distribution for each pass (Doege and Behrens 2010). The shape of the workpiece is due to the negative shape of the roll segments (SMS Meer GmbH 2014). Forge rolling processes are mainly used in the preforming procedure of a forging sequence of long pieces. The principle of...
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© CIRP 2015

Authors and Affiliations

  1. 1.Institute of Forming Technology and Machines (IFUM)Leibniz Universität Hannover (LUH)GarbsenGermany