Method and apparatus for wire drawing
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United States of America Patent
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Mar 2, 1993
Grant Date -
N/A
app pub date -
Oct 15, 1991
filing date -
Oct 15, 1991
priority date (Note) -
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Abstract
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).
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