KR20230144559A - Metal container end with coined peripheral edge and related methods - Google Patents

Abstract

Metal container end 102 for metal container 100 includes a central section 116 and a peripheral section 118 extending along the periphery of the central section. The peripheral section includes an edge 122 of the peripheral section, and edge 122 includes a contacting portion 126 and a non-contacting portion 130 . The contacting portion 126 of edge 122 extends at a non-zero angle 132 relative to the non-contacting portion 130 of edge 122 .

Description

Metal container end with coined peripheral edge and related methods

See related applications

This application claims the benefit of U.S. Provisional Patent Application No. 63/199,964, entitled METAL CONTAINER END WITH COINED PERIPHERY EDGE AND RELATED METHODS, filed February 5, 2021, the contents of which are hereby incorporated by reference in their entirety. do.

Technology field

This application relates to metal containers, and more specifically to metal container ends that can be joined with container bodies to form metal containers. Additionally, methods of manufacturing metal containers are disclosed.

Metal containers, such as those intended to hold food or beverages (e.g., aluminum beverage cans), typically have a container body with a defined opening at one end, and a closure designed to close the opening in the container body (" (referred to as “container end” or “can end”). The container body and can end are typically joined at their peripheries (e.g., by crimped or rolled together) to form a liquid-tight and gas-tight joint. Some vessel ends are flat circular disks, but vessel ends are more typically provided with raised, contoured or curled peripheral edges that facilitate the joining process.

A coating or lacquer may be provided on the container ends (as well as the container bodies) for decoration and/or other purposes as desired. For example, the container ends can be colored various colors (eg, blue, red, green, etc.) with various lacquers. During the final manufacturing process of the container, the lacquer may be cut, chipped, or otherwise damaged. Such damage mars the appearance of the can end because the aluminum substrate becomes very visible (sometimes between 5-50% of the circumference), leading the consumer to conclude that the container and/or its contents are of inferior quality. You can. This potential for lacquer layer wear currently prevents some brand owners from using more colored ends for their products. This damage also generates lacquer dust throughout the final manufacturing process, which can damage equipment and/or present a health hazard. For example, dust generated by wear between the shell press and the packing of the ends within the paper sleeve for transport (mainly on the trackway transporting the shell to the balancer and then to the conversion press) can contribute to fine particles. must be collected to prevent air pollution and workplace contamination. The generated dust may also remain attached to the beverage side of the end, compromising the hygiene of the beverage itself.

The terms “invention” and “invention” are intended to broadly refer to all subject matter of this patent and the patent claims below. Expressions containing these terms should be understood not as limiting the subject matter described herein or limiting the meaning or scope of the patent claims below. Embodiments of the present invention covered by this patent are defined by the claims below, not by the content of the present invention. This summary is a high-level overview of various embodiments of the invention and introduces some of the concepts that are further explained in the Details section below. The present disclosure is not intended to identify key or essential features of the claimed subject matter, nor is it intended to be used in isolation to determine the scope of the claimed subject matter. The subject matter should be understood by reference to the appropriate portions of the entire specification, any or all drawings, and each claim of this patent.

According to certain embodiments of the present disclosure, the metal container end includes a central section and a peripheral section extending along a periphery of the central section. The peripheral section includes an edge, and the edge includes a contacting portion and a non-contacting portion. The contacting portion extends at a non-zero angle relative to the non-contacting portion.

According to some embodiments of the present disclosure, the metal container end includes a central section, a peripheral section extending along a periphery of the central section, an outer surface, and an inner surface. The distance from the outer surface to the inner surface is the thickness of the metal container end. The peripheral section includes an edge extending between the outer and inner surfaces, and the edge includes a contact portion and a non-contact portion. The contacting portion of the edge extends from the outer surface toward the inner surface and at a non-zero angle relative to the non-contacting portion.

According to various embodiments of the present disclosure, the metal container end includes a central section and a peripheral section extending along a periphery of the central section. The peripheral section has a section thickness and includes edges. The edge includes a contacting portion and a non-contacting portion, the contacting portion of the edge comprising at least 50% of the thickness of the section at the edge extending at an angle greater than about 0° and less than about 90° relative to the non-contacting portion.

According to certain embodiments of the present disclosure, the metal container end includes a central section and a peripheral section extending along a periphery of the central section. The peripheral section includes a curl between the central section and an edge of the peripheral section, wherein the contact portion of the edge extends at a non-zero angle relative to the vertical axis prior to formation of the curl.

According to certain embodiments of the present disclosure, the metal container end includes a central section, a peripheral section extending along a periphery of the central section, an outer surface, and an inner surface. The distance from the outer surface to the inner surface is the thickness of the metal container end. The peripheral section includes an edge extending between the outer and inner surfaces and also includes a curl between the edge and the central section. The contact portion of the edge extends from the outer surface toward the inner surface and at a non-zero angle to the vertical axis prior to formation of the curl.

According to certain embodiments of the present disclosure, the metal container end includes a central section and a peripheral section extending along a periphery of the central section. The peripheral section has a section thickness and includes curls between the edges of the central section and the peripheral section. The contact portion of the edge, comprising at least 50% of the section thickness at the edge, extends at an angle greater than about 0° but less than about 90° relative to the vertical axis prior to formation of the curl.

According to certain embodiments, a method of forming a metal container end includes blanking material to form a metal container end such that the metal container end includes a central section and a peripheral section extending along a periphery of the central section. Includes. The method includes coining an edge of a peripheral section and forming a contact portion of the edge extending at a non-zero angle with respect to the vertical axis. The method also includes forming the metal container end such that the peripheral section includes a curl between the center section and the edge.

The various implementations described in this disclosure may include additional systems, methods, features and advantages, and may not necessarily be explicitly disclosed herein, but rather the specific details and accompanying drawings for practicing the invention are shown below. Upon review, it will be apparent to those skilled in the art. All such systems, methods, features, and advantages are intended to be included within this disclosure and protected by the appended claims.

BRIEF DESCRIPTION OF THE DRAWINGS Features and components in the following figures are presented to emphasize the general principles of the disclosure. Corresponding features and elements throughout the drawings may be designated by matching reference letters for consistency and clarity.
1 is a perspective view of a metal container having a container body and a container end according to aspects of the present disclosure.
Figure 2 is a cross-sectional view of the vessel end during the final manufacturing process.
Figure 3 is an enlarged view of the peripheral section of the vessel end of Figure 2 prior to formation of curls in the peripheral section.
Figure 4 is an enlarged view of a peripheral section of the end of the vessel of Figure 2 after formation of a curl.
Figure 5 is an enlarged view of the two peripheral sections of Figure 4 when the two vessel ends are stacked.
Figure 6 illustrates a stack of vessel ends during the final manufacturing process.
7 illustrates a stack of container ends according to aspects of the present disclosure.

Although the subject matter of embodiments of the invention is specifically described herein to satisfy statutory requirements, the description is not necessarily intended to limit the scope of the claims. The claimed subject matter may be embodied in different ways, may include different elements or steps, and may be used in conjunction with other existing or future technologies. The description should not be construed as implying any particular order or arrangement among the various steps or elements except when the order of individual steps or arrangement of elements is explicitly described. In particular, directional references such as "top", "bottom", "top", "bottom", "left", "right", "front", and "rear" refer to the drawings to which the components and directions are referenced ( or the drawings) is intended to refer to the orientation as shown and described.

Certain aspects and features of the present disclosure relate to metal container ends and systems and methods for manufacturing metal container ends. Metal container ends can be formed on a variety of metal substrates, including but not limited to aluminum, aluminum alloys, steel, steel-based materials, magnesium, magnesium-based materials, copper, copper-based materials, any other suitable metal, or combination of materials. You can take it in. Metal container ends of the present disclosure generally connect container bodies to form various types of metal containers, including but not limited to containers and cans for beverage cans, food cans, aerosol cans, chemical storage cans, or other products. can be combined with

The metal container ends described herein each generally include a central section and a peripheral section extending along the periphery of the central section. The peripheral section includes an edge and, when formed, the peripheral section also includes a curl between the edge and the central section. The edge of the peripheral section includes a contact portion that extends at a non-zero angle relative to the vertical axis of the metal container end prior to formation of the curl. The contact portion of the edge increases the amount or surface area of the edge of the peripheral section that contacts the adjacent metal container end during the final manufacturing process. This increased contact may better distribute forces transmitted to adjacent metal container ends and/or minimize or reduce damage to adjacent metal container ends. The metal container ends described herein may be particularly suitable for minimizing or reducing damage to lacquers or coatings on adjacent metal container ends during final manufacturing processes. By minimizing or reducing damage (e.g. lacquer wear), the amount of dust generated during the final manufacturing process due to damage can be minimized or reduced, thereby potentially damaging equipment and/or causing harm to workers. Health risks can be minimized or reduced.

1 illustrates an example of a metal container 100 having a container end 102 and a container body 104. Container end 102 may be coupled to container body 104 through a variety of suitable techniques, including but not limited to crimping, rolling, or other suitable techniques, as desired. Lacquers and/or coatings may be provided on the container body 104 as well as the container end 102 as desired. In some non-limiting examples, container end 102 includes a lacquer that colors container end 102 such that container end 102 has a desired color appearance (e.g., green, red, blue, yellow, etc.) .

In the example of FIG. 1 , the metal container 100 is a beverage can and optionally has a score 106 on a center section 116 of the container end 102, an integral tab 108, and Includes pop-tab 110. Metal container end 102 includes an outer surface 112. Depending on the desired end product, the metal container end 102 may optionally include a peripheral channel 120 provided in the central section 116 proximate the peripheral section 118. Although metal container 100 is illustrated as a beverage container, in other examples, metal container 100 can be used for other types of metal cans and/or other metal containers, such as food cans, aerosol cans, chemical storage cans, or other types of containers, as desired. These can be containers and cans for products. It will be appreciated that, depending on the particular type of metal container 100, additional features may be defined on or in conjunction with the container end 102 as desired.

2 illustrates the container end 102 before being joined to the container body 104. The vessel end 102 includes an outer surface 112, an inner surface 114, a central section 116, and a peripheral section 118. Peripheral section 118 extends along the perimeter of central section 116 and includes an edge 122 extending from outer surface 112 to inner surface 114 . A curl 124 may be defined between the edge 122 and the central section 116, and the curl 124 may be round (i.e., have a non-zero curvature). The distance 129 from the outer surface 112 to the inner surface 114 (see FIG. 3) is the thickness of the container end 102. As mentioned, container end 102 may include lacquer and/or coating. In some cases, lacquer and/or coating may be provided on inner surface 114 and/or outer surface 112 as desired. In some cases, outer surface 112 includes a colored lacquer so that container end 102 has a colored appearance.

3 and 4 illustrate the peripheral section 118 of the vessel end 102 in more detail. FIG. 3 illustrates peripheral section 118 prior to the forming process to form curl 124 , and FIG. 4 illustrates peripheral section 118 after curl 124 is formed. As illustrated in FIGS. 3 and 4 , edge 122 includes a contact portion 126 extending a distance 128 from outer surface 112 toward inner surface 114 . In some examples, distance 128 is at least about 30% of distance 129. In certain cases, distance 128 may be from about 30% to about 100% of distance 129, such as at least 50% of distance 129, such as from about 80% to about 100% of distance 129. In various examples, distance 128 may be approximately equal to distance 129, while in other examples, distance 128 may be less than distance 129 (i.e., less than 100% of distance 129). When distance 128 is less than distance 129 , edge 122 also includes a non-contact portion 130 between contact portion 126 and inner surface 114 . As shown in FIGS. 3 and 4 , the non-contact portion 130 may extend at a non-zero angle relative to the contact portion 126 .

3 , in various examples, prior to formation of curl 124, contact portion 126 extends at a non-zero angle 132 relative to axis 134 defined by non-contact portion 130. . In examples where non-contacting portion 130 is omitted, contacting portion 126 extends at any angle relative to inner surface 114 and/or outer surface 112, including but not limited to square angles or non-square angles. It can be. In some examples, prior to formation of curl 124, axis 134 may be substantially vertical, but in other examples this need not be the case. In some examples, non-zero angle 132 is greater than about 0° to about 90°. In certain examples, the non-zero angle 132 is from about 5° to about 30°, such as about 5°, about 6°, about 7°, about 8°, about 9°, about 10°, about 11°, About 12°, about 13°, about 14°, about 15°, about 16°, about 17°, about 18°, about 19°, about 20°, about 21°, about 22°, about 23°, about 24 °, about 25°, about 26°, about 27°, about 28°, about 29°, and/or about 30°. In other examples, non-zero angle 132 may be less than about 5° or greater than about 30°. In some non-limiting examples, the non-zero angle is from about 22° to about 42°, such as about 22°, about 23°, about 24°, about 25°, about 26°, about 27°, about 28°, about 29°, about 30°, about 31°, about 32°, about 33°, about 34°, about 35°, about 36°, about 37°, about 38°, about 39°, about 40°, about 41° , and/or about 42°. The angle 132 and distance 128 are such that during final processing (e.g., when vessel ends 102 may be in contact with other vessel ends 102), the contact portion 126 is positioned between adjacent vessel ends ( It is controlled to be configured to contact the peripheral section 118 of 102). In various examples, when non-contact portion 130 is included, prior to formation of curl 124, non-contact portion 130 may extend at an angle substantially parallel to vertical axis 134.

Although contact portion 126 is illustrated as linear or planar, it will be appreciated that in other examples, contact portion 126 may have a variety of suitable shapes or profiles as desired. As one non-limiting example, contact portion 126 may optionally have a curved or arcuate profile that can match the shape or profile of the curl of an adjacent vessel end.

4 shows the peripheral section 118 after formation of curls 124. As shown in FIG. 4 , the contact portion 126 still extends at a non-zero angle relative to the non-contact portion 130 after the curl 124 is formed (i.e., the contact portion 126 extends at a non-contact portion 130 is not parallel and/or not coplanar).

5 and 6 show vessel ends 102 stacked during the final manufacturing process. As illustrated in FIGS. 5 and 6 , the contact portion 126 of one vessel end 102 may selectively contact the peripheral section 118 of an adjacent vessel end 102 . Selective contact between the contact portion 126 and the peripheral section 118 can increase contact between adjacent container ends and better distribute the forces acting on the container ends 102 during processing, This may reduce or minimize potential damage (e.g., lacquer wear) caused by contact between edge 122 and peripheral section 118.

A method of forming a container end 102 includes forming a metal container end such that the container end 102 includes a central section 116 and a peripheral section 118 extending along the periphery of the central section 116. It may include a blanking step. The method includes coining (e.g., stamping) an edge 122 of the peripheral section 118 and forming a contact portion 126 of the edge 122 that extends at a non-zero angle with respect to the axis 134. Including forming steps. In some non-limiting examples, coining edge 122 includes placing container end 102 on a support and engaging container end 102 to form edge 122 (edge ( 122) pressing a die or press having the desired profile. In various examples, coining of the edge 122 may occur before the container ends 102 are stacked for transport over a conventional trackway, which may be achieved by stacking any trackway nested container end 102. ) This is because it requires considerable force to move it. The force to move the nested container end 102 depends on the material used in the trackway (i.e., surface friction), any vertical height of the trackway, any offset/mismatch between individual segments of the trackway, and Any change in the direction of the trackway may depend on the radius of the trackway. In some instances, the higher the pressing force, the higher the degree of lacquer wear, if normal. Coining of edge 122 is optional and can be performed during shell forming operations in die tooling, on the entry/exit side of a rotary curler, and/or within the curler itself. In some cases, sharp edges on the container end may be removed during or after blanking by coining, milling, laser processing, or any other mechanical or ablation technique.

In some examples, edge 122 is coined prior to forming container end 102 such that peripheral section 118 includes a curl 124 between center section 116 and edge 122. In other examples, edge 122 is coined after forming container end 102 such that the peripheral section includes curls 124. Other suitable techniques and tools may be used to form edge 122 as desired, and edge 122 need not necessarily be formed through coining. In certain embodiments, modifications to container end 102 may be made by adjusting the tooling. In one non-limiting example, can end shell forming tooling may be modified such that the incoming sheet of material is bent downward prior to the blanking operation at an angle corresponding to the desired bevel angle of edge 122. This process includes clamping a sheet of material in a blank and draw die such that the material at the edge of the can end bends downward; creating a beveled edge by separating material using a cutting edge; and forming the ends by drawing the material using a blank and draw die, stretching the material, and straightening the material. In these non-limiting examples, after the material has been through the entire forming operation, the edge 122 of the can end is now beveled at an angle with respect to a line perpendicular to the outer surface of the can end.

The method may optionally include stacking a plurality of vessel ends 102 such that each contact portion 126 of peripheral section 118 contacts another vessel end 102.

Figure 7 shows another example of a laminate of container end 702 according to various embodiments. In the example of FIG. 7 , the entire edge 122 is a contact portion 126 , and the contact portion 126 is substantially perpendicular to adjacent portions of the inner surface 114 and the outer surface 112 . Compared to vessel ends 102 where edge 122 has a central axis 736, peripheral section 118 has edge 122 of vessel edge 702 offset angle 740 from central axis 736. It has a different shape with the central axis 738 offset by In various cases, the offset angle is from about 22° to about 42°, such as about 22°, about 23°, about 24°, about 25°, about 26°, about 27°, about 28°, about 29°, about 30°, about 31°, about 32°, about 33°, about 34°, about 35°, about 36°, about 37°, about 38°, about 39°, about 40°, about 41°, and/or It is about 42°. In various examples, altering the shape of peripheral section 118 by offset angle 740 can increase the percentage or amount of contact portion 126 in contact with an adjacent container end 702. In various aspects, offset angle 740 provides a predetermined increase in diameter or distance between edges 122 across vessel end 702. In such cases, the diameter between edges 122 is increased compared to conventional vessel ends. In other words, referring to Figure 2, offset angle 740 provides a predetermined increase in diameter or distance between edge 122 on the left side of the figure and edge 122 on the right side of the figure. In some non-limiting example cases, angle 740 increases the diameter by about 0.14 mm to about 0.20 mm. In one non-limiting example, angle 740 increases the diameter by approximately 0.16 mm.

A set of example embodiments, including at least some explicitly listed as “Examples,” are provided below that provide further explanation of various example types according to the concepts described herein. These examples are not intended to be mutually exclusive, comprehensive, or limiting; The invention is not limited to these illustrative examples, but includes all possible modifications and variations within the scope of the granted claims and their equivalents.

Example 1. A metal container end with a central section; and a peripheral section extending along the periphery of the central section, wherein the peripheral section includes an edge, the edge includes a contact portion and a non-contact portion, and the contact portion extends at a non-zero angle relative to the non-contact portion. Phosphorus, metal container end.

Example 2. The metal container end of any preceding or subsequent example or combination of examples, wherein the peripheral section comprises the section thickness and the contact portion comprises at least 50% of the section thickness at the edge.

Example 3. The metal container end of any preceding or subsequent example or combination of examples, wherein the contacting portion comprises less than 100% of the section thickness at the edge and at the edge.

Example 4. The metal container end of any preceding or subsequent example or combination of examples, wherein the non-zero angle is from about 5° to about 30°.

Example 5. The method of any preceding or subsequent example or combination of examples, wherein the metal container end includes an outer surface and an inner surface, wherein an edge extends from the outer surface to the inner surface and a contact portion of the edge extends from the outer surface. A metal container end extending toward the inner surface.

Example 6. The metal container end of any preceding or subsequent example or combination of examples, wherein no contact is between the interior surface and the contacting portion.

Example 7. The metal container end of any preceding or subsequent example or combination of examples, wherein the peripheral section further comprises a curl between the central section and the edge.

Example 8. The metal container end of any preceding or subsequent example or combination of examples, wherein the contacting portion extends at a non-zero angle relative to the non-contacting portion prior to formation of the curl.

Example 9. The metal container end of any preceding or subsequent example or combination of examples, wherein the metal container end comprises aluminum or an aluminum alloy.

Example 10. A beverage can, comprising: a can body; and a metal container end of any preceding or subsequent example or combination of examples as a beverage can end coupled to the can body.

Example 11. A metal container end comprising a central section; a peripheral section extending along the periphery of the central section; outer surface; and an inner surface, wherein the distance from the outer surface to the inner surface is the thickness of the metal container end, the peripheral section includes an edge extending between the outer surface and the inner surface, and the edge includes a contact portion and a non-contact portion. , and the contacting portion of the edge extends from the outer surface toward the inner surface and at a non-zero angle relative to the non-contacting portion.

Example 12. The metal container end of any preceding or subsequent example or combination of examples, wherein the contacting portion of the edge comprises at least 50% of the thickness at the edge.

Example 13. The metal container of any preceding or subsequent example or combination of examples, wherein the non-zero angle is from about 5° to about 30°.

Example 14. The metal container end of any preceding or subsequent example or combination of examples, wherein the metal container end comprises aluminum or an aluminum alloy.

Example 15. The metal container end of any preceding or subsequent example or combination of examples, wherein the peripheral section further comprises a curl between the edge and the central section.

Example 16. A beverage can, comprising: a can body; and a metal container end of any preceding or subsequent examples or combination of examples as a beverage can end coupled to the can body, wherein the center section includes at least one of a tab or a score line. Beverage cans.

Example 17. A metal container end comprising a central section; and a peripheral section extending along the periphery of the central section, wherein the peripheral section has a section thickness and includes an edge, the edge includes a contact portion and a non-contact portion, and includes at least 50% of the section thickness at the edge. The metal container end, wherein the contacting portion of the contacting edge extends at an angle greater than about 0° and less than about 90° relative to the non-contacting portion.

Example 18. The metal container end of any preceding or subsequent example or combination of examples, wherein the angle is from about 5° to about 30°.

Example 19. A beverage can, comprising: a can body; and a metal container end of any preceding or subsequent example or combination of examples as a beverage can end coupled to the can body, wherein the metal container end comprises aluminum or an aluminum alloy.

Example 20. A method of forming a metal container end, comprising: blanking material to form the metal container end such that the metal container end includes a central section and a peripheral section extending along a periphery of the central section; coining an edge of the peripheral section and forming a contact portion of the edge extending at a non-zero angle relative to a non-contact portion of the edge; and shaping the metal container end such that the peripheral section includes a curl between the central section and the edge.

Example 21. The method of any preceding or subsequent example or combination of examples, wherein forming the metal container end includes forming the metal container end such that the curl has a non-zero curvature.

Example 22. The method of any preceding or subsequent example or combination of examples, further comprising laminating a metal container end onto another metal container end such that a contact portion of the peripheral section contacts the other metal container end. , method.

Example 23. The method of any preceding or subsequent example or combination of examples, wherein the contacting portion of the edge comprises at least 50% of the thickness of the metal container end at the edge and the non-zero angle is from about 5° to about 30°. °, the method.

Example 24. The method of any preceding or subsequent example or combination of examples, wherein the metal container end comprises aluminum or an aluminum alloy, and the metal container end is a beverage can end.

Example 25. A method of forming a beverage can, comprising: forming a beverage can end according to the method of any preceding or subsequent examples or combination of examples; and joining the beverage can end to the can body.

Example 26. A metal container end comprising a central section; and a peripheral section extending along a periphery of the central section, wherein the peripheral section further comprises a curl between the central section and an edge of the peripheral section, wherein the contact portion of the edge is at a non-zero angle relative to the vertical axis prior to formation of the curl. The end of the metal container extends to.

Example 27. A metal container end comprising a central section; and a peripheral section extending along the periphery of the central section, wherein the peripheral section has a section thickness and includes a curl between the edge of the central section and the peripheral section, the edge comprising at least 50% of the section thickness at the edge. The metal container end, wherein the contact portion extends at an angle greater than about 0° and less than about 90° relative to the vertical axis prior to formation of the curl.

The above-described aspects are merely examples of possible implementations and are presented merely to clearly understand the principles of the present disclosure. Many variations and modifications may be made to the above-described embodiment(s) without substantially departing from the spirit and principles of the present disclosure. All such modifications and variations are intended to be included within the scope of this disclosure, and all possible claims for individual aspects or combinations of elements or steps are intended to be supported by this disclosure. Additionally, although certain terms are used herein as well as in the claims that follow, they are used in a general and descriptive sense only and are not intended to limit either the invention described or the scope of the claims that follow.

Claims (20)

As a metal container end,
central section; and
a peripheral section extending along the periphery of the central section,
the peripheral section includes an edge,
The edge includes a contact portion and a non-contact portion, and
wherein the contact portion extends at a non-zero angle relative to the non-contact portion. 2. The method of claim 1, wherein the peripheral section comprises a section thickness and the contact portion comprises at least 50% of the section thickness at the edge and less than 100% of the section thickness at the edge. Metal container end. 2. The metal container end of claim 1, wherein the non-zero angle is from about 5° to about 30°. 2. The method of claim 1, wherein the metal container end includes an outer surface and an inner surface, wherein the edge extends from the outer surface to the inner surface, and the contact portion of the edge extends from the outer surface toward the inner surface. An end extending from a metal container. 5. The metal container end of claim 4, wherein the non-contact is between the inner surface and the contact portion. 2. The metal container end of claim 1, wherein the peripheral section further comprises a curl between the central section and the edge. 2. The metal container end of claim 1, wherein the metal container end comprises aluminum or an aluminum alloy. As a beverage can,
can body; and
A beverage can comprising the metal container end of claim 1 as a beverage can end coupled to the can body. As a metal container end,
central section;
a peripheral section extending along the periphery of the central section;
outer surface; and
Including the medial surface,
The distance from the outer surface to the inner surface is the thickness of the metal container end,
the peripheral section includes an edge extending between the outer surface and the inner surface,
The edge includes a contact portion and a non-contact portion, and
wherein the contact portion of the edge extends from the outer surface toward the inner surface and at a non-zero angle relative to the non-contact portion. 10. The metal container end of claim 9, wherein the contact portion of the edge comprises at least 50% of the thickness at the edge. 10. The metal container of claim 9, wherein the non-zero angle is from about 5° to about 30°. 10. The metal container end of claim 9, wherein the peripheral section further comprises a curl between the edge and the central section. As a beverage can,
can body; and
A beverage can comprising the metal container end of claim 9 as a beverage can end coupled to the can body, wherein the central section includes at least one of a tab or a score line. 10. The method of claim 9, wherein the peripheral section has a section thickness, the contacting portion of the edge comprises at least 50% of the section thickness at the edge, and the non-zero angle is 0° relative to the non-contacting portion. The metal container end is less than 90° above. A method of forming a metal container end, comprising:
blanking material to form the metal container end such that the metal container end includes a central section and a peripheral section extending along a periphery of the central section;
coining an edge of the peripheral section and forming a contact portion of the edge extending at a non-zero angle relative to a non-contact portion of the edge; and
Shaping the metal container end such that the peripheral section includes a curl between the central section and the edge. 16. The method of claim 15, wherein forming the metal container end includes forming the metal container end such that the curl has a non-zero curvature. 16. The method of claim 15, wherein the metal container end is a first metal container end, and the method comprises connecting the first metal container end to the second metal container end such that the contact portion of the peripheral section is in contact with the second metal container end. The method further comprising laminating on the top. 16. The method of claim 15, wherein the contact portion of the edge comprises at least 50% of the thickness of the end of the metal container at the edge and the non-zero angle is between about 5° and about 30°. 16. The method of claim 15, wherein the metal container end comprises aluminum or an aluminum alloy and the metal container end is a beverage can end. A method of forming a beverage can, comprising:
forming the beverage can end according to the method of claim 19; and
A method comprising coupling the beverage can end to a can body.