Apparatus and method for rolling metal

Abstract

An apparatus and method for rolling aluminum sheet uses a texture roll to roll the sheet while is it hot and has reduced yield strength. The texture rolling may be used to remediate defects in the sheet at a variety of stages in rolling, and may facilitate subsequent rolling stages.

Description

[0001] Cross References to Related Applications [0002] This application claims the benefit of U.S. Provisional Application No. 61 / 991,973, filed May 12, 2014, entitled "Apparatus and Method for Rolling Aluminum," the disclosure of which is hereby incorporated by reference in its entirety. The above is incorporated in this application in its entirety. technical field [0003] This invention relates to the manufacture of sheet material, and more particularly to methods and apparatus for rolling metals such as aluminum and aluminum alloys into sheet and for producing sheet material having desired surface and subsurface properties. Background technique [0004] Various methods are known for rolling aluminum and for providing the final rolled sheet with a given surface texture. The surface texture can be imparted to the sheet surface by rolls having surfaces that have been textured by processes such as electrical discharge texturing (EDT), roll grinding, cross grinding, shot ...

AI Technical Summary

Problems solved by technology

Higher reductions with EDT rolls in cold rolling can also lead to more chipping and reduced surface finish of the sheet produced either as a final product or as an intermediate product to undergo further processing

[0005] In addition, skin skin rolling after cold rolling adds another processing step, which increases the cost of the product

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