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US 11,958,205 B2Granted
Score die, score die forming system, and associated method
AssigneeStolle Machinery Company, LLC
InventorJonathon D. Ledford
Life of this patent
Estimating the term…
Abstract
A score die including a body with a generally planar first surface. The first surface includes a score blade. The score blade has a number of cutting portions, and, each cutting portion has a substantially uniform cross-section.
Claims11
A method of forming a score die comprising:
- providing a number of blanks;
- forming a soft finished score blade on each blank;
- heat treating each soft finished score blade to change each soft finished score blade into a hard finished score blade on each blank;
- machining each said hard finished score blade to change a shape of each hard finished score blade into a substantially finished score blade on each blank;
- and
- performing a number of finishing operations on each said blank with said substantially finished score blade,
- wherein each substantially finished score blade includes a number of cutting portions,
- wherein each cutting portion includes a first surface, a second surface, and a flat vertex,
- wherein the flat vertex extends from the first surface to the second surface,
- wherein a thickness of each cutting portion at the flat vertex does not change by more than 10% along a length of the cutting portion,
- wherein a height of each cutting portion does not change by more than 10% along the length of the cutting portion,
- wherein an angle between the first surface and the second surface of each cutting portion does not change by more than 10% along the length of the cutting portion, and
- wherein the angle between the first surface and the second surface is substantially 25°, and wherein the flat vertex has a length of between 0.001 inch and 0.0015 inch.
10 more elements
Dependencies are inferred from the claim text.