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upset welding[′ə‚set ‚weld·iŋ]
A resistance welding process in which coalescence is produced simultaneously over the entire area of abutting surfaces or progressively along a joint; pressure is applied before heating is started and is maintained throughout the heating period.
McGraw-Hill Dictionary of Scientific & Technical Terms, 6E, Copyright © 2003 by The McGraw-Hill Companies, Inc.
A resistance-welding process in which the joining of two surfaces is effected by the heat obtained from the flow of current through the resistance provided by the area of contact between the surfaces to be joined; pressure is employed in this process.
McGraw-Hill Dictionary of Architecture and Construction. Copyright © 2003 by McGraw-Hill Companies, Inc.