Apparatus for producing a hot-formed product

Details Apparatus for producing a hot-formed product Apparatus for producing a hot-formed product

1977-05-24

1978-12-12

Lazarus, Richard B.

Metal founding

Combined

164 76, 164442, B22D 1112

Patent

active

041291700

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.

REFERENCES:
patent: 395684 (1889-01-01), Baker
patent: 406946 (1889-07-01), Norton
patent: 494659 (1893-04-01), Very
patent: 770130 (1904-09-01), Trotz
patent: 1092934 (1914-04-01), Mellen
patent: 1193001 (1916-08-01), Edwards
patent: 2710433 (1955-06-01), Properzi
The Making, Shaping and Treating of Steel, U.S. Steel, 1957, pp. 820-821.

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