Semi-solid metal forming process

Details Semi-solid metal forming process Semi-solid metal forming process

1998-01-26

2000-06-27

Lin, Kuang Y.

Metal founding

Process

Shaping liquid metal against a forming surface

164113, 164900, 148550, B22D 1700, B22D 2506, C22F 100

Patent

active

060794771

ABSTRACT:
A semi-solid metal forming process using a cast billet and having the following steps: 1. heating the cast billet to a temperature above its recrystallization temperature and below its solidus temperature; 2. extruding the cast billet into an extruded column; 3. cutting the extruded column into at least one billet; 4. heating the billet from step 3 to a semi-solid state; and 5. squeezing the billet from step 4 into a cavity in a metal forming die set to form a part.

REFERENCES:
patent: 4415374 (1983-11-01), Young et al.
patent: 5009844 (1991-04-01), Laxmanan
patent: 5501748 (1996-03-01), Gjestland et al.
patent: 5701942 (1997-12-01), Adachi et al.
patent: 5849115 (1998-12-01), Shiina et al.
Mashy-State Extrusion, Rolling and Forging--by: M. Kiuchi, Prof., Dr.-Ing./S.Sugiyama, Assistant Researcher.
Semi-Solid Forming of Aluminum and Magnesium by A.I. "Ed" Nussbaum, Contributing Editor, in Light Metal Age, Jun. 1996.
Semi-Solid Forming Using Strain-Introduced Mg-Al Based Alloys by S. Kamado and Y. Komima of Department of Mechanical Engineering, Nagaoka University of Technology, Nagaoka, Japan.
Brochures entitled "Velvetflow" by Ormet.

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