The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Dec. 12, 1978
Filed:
May. 24, 1977
Daniel B Cofer, Carrollton, GA (US);
George C Ward, Carrollton, GA (US);
Dale D Proctor, Carrollton, GA (US);
Southwire Company, Carrollton, GA (US);
Abstract
What is disclosed herein is an apparatus for producing a hot-formed product from a cast metal without homogenizing of the cast metal between a casting means and a hot-forming means. The apparatus includes a conditioning means for reducing the cross-sectional area of the cast metal with a single compression by at least 36% as the cast metal passes at substantially hot-forming temperature between the casting means and the hot-forming means. The reduction of the cross-sectional area of the cast metal by at least 36% substantially destroys the as cast dendritic structure of the cast metal prior to the cast metal being hot-formed in the hot-forming means and results in hot-forming being achieved without the splitting and cracking of the cast metal which would otherwise occur in the absence of conventional homogenizing. The conditioning means is disclosed as being either a separate means positioned between the casting means and the hot-forming means or a part of the hot-forming means arranged to accomplish a reduction of at least 36% as the initial step in the hot-forming of the cast metal.