Metal deforming – By extruding through orifice – Expressing plural products
Patent
1995-02-08
1998-12-22
Larson, Lowell A.
Metal deforming
By extruding through orifice
Expressing plural products
B21C 2302
Patent
active
058507558
ABSTRACT:
Methods and apparatus are described for the plastic deformation of flat rectangular billets. Simultaneous extrusion of two flat rectangular billets through a die having channels of equal cross-sectional area alters billet material structure, texture, and physicomechanical properties without altering billet dimensions. The extrusion system of the present invention prolongs die lifetime, increases punch stability, decreases punch working load and pressure requirements, eliminates the difficulties associated with lubricating movable parts of the die under high pressure and temperature, optimizes use of press space, and provides for automatic and independent ejection of extruded billets from the die. The methods of plastic deformation processing of flat rectangular billets in the present invention allow for the production of a variety of structural, textural, and physicomechanical properties previously unobtainable for large flat rectangular billets.
REFERENCES:
patent: 1370328 (1921-03-01), Lowe
patent: 3954514 (1976-05-01), Webster et al.
patent: 4092181 (1978-05-01), Paton et al.
patent: 4386513 (1983-06-01), Doudet
patent: 4511409 (1985-04-01), Ferton et al.
patent: 4721537 (1988-01-01), Ghosh
patent: 4722754 (1988-02-01), Ghosh et al.
patent: 4722755 (1988-02-01), Maehara
patent: 5087297 (1992-02-01), Pouliquen
patent: 5122196 (1992-06-01), Fernandez
patent: 5160338 (1992-11-01), Legresy et al.
Wert et al., "Grain Refinement in 7075 Aluminum by Thermo-Mechanical Processing", Matallurgical Transactions vol. 12A (Jul. 1981), pp. 1267-1276.
Grimes and Butler, "The Properties and Applications of Currently Exploited Superplastic Aluminum Alloys", Superplasticity in Advanced Materials, 1991; p. 771.
Roija and Graham, "AL-Li Alloys Find Their Niche", Advanced Materials & Processes, Jun. 1992, p. 23.
Wittenauer et al., "Tungsten and Its Alloys," Advanced Materials & Processes, Sep. 1992, p. 28.
Bouchard et al., "Monte Carlo simulations of textured planar magnetron targets", J. Vac. Sci. Technol. A, 11(15), Sep/Oct. 1993, p. 2765.
Segal, Vladimir M., "Working of Metals by Simply Shear Deformation Process" Proceedings: 5th International Aluminum Extrusion Technology Seminar, 1992.
Segal, Vladimir M., "Simple Shear as a Metalworking Process for Advanced Materials Technology", First International Conference on Processing Materials for Properties, Nov. 1993.
Gregory, John C. Letter from Overseas Strategic Consulting, Ltd. to David W. Brownlee, Esq., "Metals Forging Technology Available for License", Nov. 12, 1993.
Larson Lowell A.
Zborovsky I.
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