B - Operations – Transporting – 21 – C
Patent
B - Operations, Transporting
21
C
B21C 1/04 (2006.01) B21C 1/06 (2006.01)
Patent
CA 2058909
ABSTRACT OF THE DISCLOSURE A method and apparatus for drawing steel wire to produce high tensile strength, steel wire with increased torsional ductility. The wire is drawn through a plurality of standard dies (14) in a wire drawing machine (10). The cross section of the wire is reduced by a constant reduction of about 15% to about 18% at each of the standard dies (14) with the exception of the final two dies (18,19). The wire is then reduced by about 10% to about 90% of the typical reduction at the next to last die (18) and the remainder of the reduction at the final die (19).
Helfer Farrel Bruce
Joseph Patrick Edward
Kim Dong Kwang
Lionetti Robert Edward
Sim & Mcburney
The Goodyear Tire & Rubber Company
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