WORKING OR PROCESSING OF METAL WIRE

Introduced: September 1968

Classification Context

Section:: PERFORMING OPERATIONS; TRANSPORTING
Class:: MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
Subclass:: WORKING OR PROCESSING OF METAL WIRE

Description

B21F covers mechanical operations performed on metal wire without material removal, including drawing, twisting, coiling, straightening, and bundling processes. This subclass encompasses machinery and methods for transforming wire stock into finished or semi-finished products for applications such as fasteners, springs, cables, and reinforcement materials. Operations typically involve plastic deformation, bending, or assembly of wire components rather than cutting or grinding. Related wire coating, insulation, and electroplating processes are excluded, falling instead under classes B05, B29, or C23.

Scope Notes

Limiting references: Metal rolling methods or mills for making semi-finished products of solid or profiled cross-section, for rolling wire or material of like small cross-section Manufacture of metal sheets, wire, rods, tubes, profiles or like semi-manufactured products otherwise than by rolling; Auxiliary operations used in connection with metal-working without essentially removing material | Application references: Processes for changing of physical properties of metals ,

Related Keywords

BENDING wireCOILING wire to form helices or spiralsmaking wire FABRICSjoining, connecting or uniting METAL(S) parts or objectswire NETTINGmaking wire SLAT(S) fabriccoiling wire to SPIRAL formTWISTING or tying wires togetherworking or processing WIRE(S) in general(3) using WIRE(S), e.g. for jacketing or reinforcing

23 direct subcodes

Child Classifications

Navigate with arrow keys, Enter to open

B21F 1/00 Bending wire other than coiling; Straightening wire
B21F 11/00 Cutting wire
B21F 13/00 Splitting wire
B21F 15/00 Connecting wire to wire or other metallic material or objects; Connecting parts by means of wire
B21F 17/00 Jacketing or reinforcing articles with wire
B21F 19/00 Metallic coating of wire
B21F 23/00 Feeding wire in wire-working machines or apparatus
B21F 25/00 Making barbed wire
B21F 27/00 Making wire network, i.e. wire nets
B21F 29/00 Making fencing or like material made partly of wire
B21F 3/00 Coiling wire into particular forms
B21F 31/00 Making meshed-ring network from wire
B21F 33/00 Tools or devices specially designed for handling or processing wire fabrics or the like
B21F 35/00 Making springs from wire
B21F 37/00 Manufacture of rings from wire
B21F 39/00 Making wheel spokes from wire
B21F 41/00 Making umbrella frames or members from wire
B21F 43/00 Making bands, e.g. bracelets, from wire
B21F 45/00 Wire-working in the manufacture of other particular articles
B21F 5/00 Upsetting wire