Fabricating an aluminum article
AssigneeCorning Incorporated
InventorKishor P. Gadkaree
Life of this patent
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Abstract
An aluminum article having a mirror-like surface and an improved working tool and method for fabricating the article from an aluminum blank, the tool comprising a mechanically strong, abrasion-resistant body against which the aluminum blank is forced under pressure, the tool body comprising a whisker-reinforced, crystalline body consisting essentially of about 5-35 weight % of SiC whiskers and 65-95 weight % of a crystalline matrix. The predominant crystal phase in the crystalline matrix may be a CaO--Al.sub.2 O.sub.3 --SiO.sub.2 crystal phase.
Claims5
In an improved working tool for fabricating an article from an aluminum blank, the tool comprising a mechanically strong, abrasion-resistant body having a surface against which the aluminum blank is forced under pressure, and the improvement being a tool comprising a whisker-reinforced, crystalline body consisting essentially of about 5.35 weight % of SiC whiskers and 65-95 weight % of a crystalline matrix comprising a predominant crystal phase of CaO--Al.sub.2 O.sub.3 --SiO.sub.2 and is essentially non-reactive with the aluminum whereby the fabricated aluminum article has an improved surface finish.
Dependencies are inferred from the claim text.