Enamel coated binding surface
AssigneeGeneral Motors Corporation
InventorArianna T. Morales
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Abstract
An apparatus for forming a metal piece at an elevated temperature comprises a part having a binding surface configured to hold the metal during forming, wherein the binding surface comprises a porcelain enamel coating. The apparatus may be a superplastic forming process, and the binding surface may have an enamel coated seal bead that cooperates with a second binding surface of a second binding surface to form a seal about a perimeter of a metal sheet that is formed into a desired shape.
Claims28
An apparatus for forming a metal piece at an elevated temperature, comprising a part having a binding surface configured to hold the metal piece during forming, wherein the binding surface comprises a porcelain enamel coating.
A forming tool for quick plastic forming or superplastic forming, comprising a seal bead, wherein said seal bead comprises an enamel coating.
A method of forming a metal sheet, comprising gripping the metal sheet between complementary tool surfaces and heating the metal sheet, wherein at least one of said complementary surfaces comprises an enamel coating.
Dependencies are inferred from the claim text.