Bending into helical or spiral form; Forming a succession of return bends, e.g. serpentine form

Introduced: September 1968

Last revised: January 2006

Full Title

Bending not restricted to forms of material mentioned in only one of groups , ,; Bending not provided for in groups; Twisting > Bending into helical or spiral form; Forming a succession of return bends, e.g. serpentine form

Classification Context

Section:: PERFORMING OPERATIONS; TRANSPORTING
Class:: MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
Subclass:: WORKING OR PROCESSING OF SHEET METAL OR METAL TUBES, RODS OR PROFILES WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL

Related Keywords

COILING metalbending or coiling metal strip by tapering one side by ROLLING

1 direct subcode

Child Classifications

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B21D 11/07 Making serpentine-shaped articles by bending essentially in one plane