Punch surface texturing for use in the manufacturing of metallic containers

摘要

A punch sleeve utilized in forming metallic containers, including food and beverage containers, is provided. The punch sleeve comprises two or more different surface textures. In one embodiment, the outer surface of the punch sleeve comprises three regions and each region has a different surface texture. Additionally, a method of texturing two or more different surface textures on an exterior surface of a punch sleeve used in a metallic container manufacturing process is provided. An apparatus for providing two or more surface textures on a punch sleeve used in a metal container manufacturing process is also provided.

主权项

1. A punch used in a manufacturing process to form metal containers, comprising:
a nose positioned on one end of the punch; a trailing edge positioned opposite the nose on a second end of the punch; a cylindrical portion positioned between the nose and the trailing edge; and an outer surface comprising:
a first region positioned proximate to the nose and having a first length and a first surface finish;a second region positioned proximate to the trailing edge and having a second length and a second surface finish, wherein the second surface finish is different than the first surface finish; anda third region positioned proximate to at least one of the first region and the second region and having a third length and a third surface finish, wherein the third surface finish is different than the second surface finish.