B - Operations – Transporting – 21 – C
Patent
B - Operations, Transporting
21
C
B21C 23/00 (2006.01) B21C 3/02 (2006.01) B21D 37/01 (2006.01) C03C 14/00 (2006.01) C04B 35/16 (2006.01)
Patent
CA 2132886
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-Al2O3-SiO2 crystal phase.
Corning Incorporated
Gowling Lafleur Henderson Llp
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