seamless ring rolling

seamless ring rolling

[′sēm·ləs ¦riŋ ‚rōl·iŋ]
(metallurgy)
The hot-rolling of a circular blank, with a hole in the center, to form a seamless ring.
McGraw-Hill Dictionary of Scientific & Technical Terms, 6E, Copyright © 2003 by The McGraw-Hill Companies, Inc.