Metallic cover and method for making the same
First Claim
1. A metallic cover, comprising:
- a bottom base; and
at least one side wall extending from the bottom base;
wherein the at least one side wall is formed by cold forging so that a thickness of the at least one side wall is greater than that of the bottom base.
1 Assignment
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Accused Products
Abstract
An exemplary metallic cover (20) includes a bottom base (21) and a side wall (22) extending from the bottom base. The side wall is formed by cold forging so that a thickness of the side wall is greater than that of the bottom base. A method for making the metallic cover described above, includes: drawing a metallic sheet into a preformed cover (30) having a bottom base (31) and a number of side walls (32); forging the preformed cover by a first forming die (200) to thicken the side walls; forging the preformed cover by a second forming die (300) to further thicken the side walls; and machining an end of each of the side walls of the preformed metallic cover to form the metallic cover.
30 Citations
20 Claims
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1. A metallic cover, comprising:
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a bottom base; and at least one side wall extending from the bottom base; wherein the at least one side wall is formed by cold forging so that a thickness of the at least one side wall is greater than that of the bottom base. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9)
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10. A method for making a metallic cover, comprising:
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drawing a metallic sheet into a preformed cover having a bottom base and a plurality of side walls, and the bottom base and each of the sidewalls connected at a rounded edge; forging the preformed cover by a first forming die to thicken the side walls, and a first slanted pressing surface formed on an end of each of the side walls; forging the preformed cover by a second forming die to further thicken the side walls, a second slanted pressing surface intersecting with the first slanted pressing surface formed on the end of each of the side walls, and the rounded edge of the preformed cover pressed into a beveled edge; and machining the end of each of the side walls of the preformed metallic cover to form the metallic cover. - View Dependent Claims (11, 12, 13, 14, 15, 16, 17, 18, 19, 20)
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Specification