(under subclass 239) Processes in which a portion of a single body is permanently distorted throughout its entire thickness relative to a second portion during which the thickness of the workpiece remains substantially the same and no significant plastic flow occurs or in which said body is permanently distorted by relative movement of its parts about a common axis.
(1) Note. Plural similar, bending operations are included herein. For plural diverse types of bending or shaping operations, see the search notes below.
SEE OR SEARCH THIS CLASS, SUBCLASS:
103, for "twisting" of plural materials about each other and subclass 295 for a molding step combined with the step of bending or twisting.
285+, for bending of running or indefinite length work.
294+, where bending or twisting of the work is one of a plurality of molding or shaping steps.