A forming process in which a flange is formed around a hole in a sheet-metal part by pressing a cylindrical die through the hole.
McGraw-Hill Dictionary of Scientific & Technical Terms, 6E, Copyright © 2003 by The McGraw-Hill Companies, Inc.
Expanding or splaying, as the splayed jambs of a window.
McGraw-Hill Dictionary of Architecture and Construction. Copyright © 2003 by McGraw-Hill Companies, Inc.