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US 2006/0123876 A1Published application
Final die for wire drawing machines
AssigneeThe Goodyear Tire & Rubber Company
InventorMichael Zelin
Life of this patent
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Abstract
A wiredrawing machine includes dies and capstans for reduces the cross sectional area of the wire. The machine includes a double die situated at the last capstan to reduce the cross sectional wire one final time in such a way that delamination and central bursting is minimized.
Claims19
A die for drawing associated wire products, comprising:
- at least a first die portion having first and second ends, the at least a first die portion having a cavity fashioned at least partially interior to the at least a first die portion for use in drawing an associated wire;
- wherein the cavity extends from the first end of the at least a first die portion to the second end;
- wherein the cavity includes at least first and second drawing contours for shaping the associated wire;
- and,
- wherein the at least a first drawing contour shapes the associated wire at a substantially similar rate as the at least a second extruding contour.
2 more elements
A die for extruding associated wire products, comprising:
- at least a first die portion having first and second ends, the at least a first die portion having a cavity fashioned at least partially interior to the at least a first die portion for use in drawing an associated wire;
- wherein the cavity extends from the first end of the at least a first die portion to the second end;
- wherein the cavity includes at least first and second drawing contours for reducing the area of the cross section of the associated wire;
- wherein the area of the cross section of the associated wire is reduced by the at least a first drawing contour by from 50% to 90% of the total reduction at the last die, and,
- wherein the area of the cross section of the associated wire is reduced by the at least a second drawing contour by from 10% to 50%.
2 more elements
A die for drawing associated wire products, comprising:
- at least a first die portion having an outer surface and first and second ends, the at least a first die portion having a cavity fashioned at least partially interior to the at least a first die portion for use in drawing an associated wire;
- wherein the at least a first die portion has fashioned in the outer surface one or more channels for use in transferring heat away from the at least a first die portion, wherein reductions taken at a last die portion are between 2% and 6%, wherein the last die portion having a region b, region b being equal to 0.6 to 50 times of a final wire diameter.
Dependencies are inferred from the claim text.