Ring rolling with variable wall thickness
Accepted version
Peer-reviewed
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Abstract
Ring rolling processes today produce axisymmetric rings, wasting material, energy and labour if non-axisymmetric components such as eccentric bearing races and bossed pipe fittings are required. A new process is proposed to roll rings with variable wall thickness. In this work, roll gaps and speeds are controlled online in physical experiments to achieve a defined variable wall thickness, enabled by photogrammetry to capture the ring’s shape and position. The trials revealed two new process limits for which new analytical explanations have been developed: a maximum rate of change of thickness around the circumference and a loss of circularity.
Description
Keywords
Rolling, Process-control, Ring rolling
Journal Title
CIRP Annals - Manufacturing Technology
Conference Name
Journal ISSN
0007-8506
1726-0604
1726-0604
Volume Title
65
Publisher
Elsevier BV
Publisher DOI
Sponsorship
EPSRC (1260906)
Engineering and Physical Sciences Research Council (EP/K018108/1)
Engineering and Physical Sciences Research Council (EP/K018108/1)
The first author is supported by an EPSRC I-Case Studentship (12220703), with Primetals Technologies Ltd. Dr. Arthington and Prof. Allwood were supported by EPSRC grant EP/K018108/1.