Metal working – Bias cutting of tubular stock
Patent
1985-12-02
1987-01-27
Goldberg, Howard N.
Metal working
Bias cutting of tubular stock
B21D 5154
Patent
active
046385355
ABSTRACT:
A process and apparatus for forming a thin-walled, elongated member having superior strength properties from an age hardenable copper base alloy is described herein. A slug or billet of a slurry cast, age hardenable copper base alloy is formed into a semi-solid slurry having about 10% to about 30% of the alloy in a liquid phase. The semi-solid slurry is then thixoforged to form the thin-walled, elongated member. Thereafter, the member is age hardened to provide a product having desired strength properties. The process and apparatus of the instant invention may be utilized to form cartridge casings.
REFERENCES:
patent: 1303727 (1919-05-01), Rice
patent: 2031315 (1936-02-01), Jennison
patent: 2034562 (1936-03-01), Davis et al.
patent: 2190536 (1940-02-01), Staiger
patent: 2430419 (1947-11-01), Edens
patent: 2698268 (1954-12-01), Lyon
patent: 2789900 (1957-04-01), Hannon
patent: 2851353 (1958-09-01), Roach et al.
patent: 3209691 (1965-10-01), Herter
patent: 3364016 (1968-01-01), Mikawa
patent: 3399057 (1968-08-01), Richardson et al.
patent: 3416915 (1968-12-01), Mikawa
patent: 3498221 (1970-03-01), Hilton et al.
patent: 3877375 (1975-04-01), Barr
patent: 3902544 (1975-09-01), Flemings et al.
patent: 3936298 (1976-02-01), Mehrabian et al.
patent: 3948650 (1976-04-01), Flemings et al.
patent: 3951651 (1976-04-01), Mehrabian et al.
patent: 3954455 (1976-05-01), Flemings et al.
patent: 4073667 (1978-02-01), Caron et al.
patent: 4106956 (1978-08-01), Bercovici
patent: 4401488 (1983-08-01), Prinz et al.
patent: 4415374 (1983-11-01), Young et al.
"Rheocasting Processes" by Flemings et al., AFS International Cast Metals Journal, Sep. 1976, pp. 11-22.
"Die Casting Partially Solidified High Copper Content Alloys" by Fascetta et al., AFS Cast Metals Research Journal, Dec. 1973, pp. 167-171.
"Copper-Rich Nickel-Aluminum-Copper Alloys. Part I-The Effect of Heat-Treatment on Hardness and Electrical Resistivity", by Alexander, W. O. et al., Journal of the Institute of Metals, vol. 61, 1937, pp. 83-102.
"Copper-Rich Nickel-Aluminum-Copper Alloys. Part II-The Constitution of the Copper-Nickel-Rich Alloys", by Alexander, W. O., Journal of the Institute of Metals, vol. 63, 1938, pp. 163-189.
"Copper-Rich-Nickel-Aluminum-Copper Alloys. Part III-Effect of Heat Treatment on Microstructure", by Alexander, W. O., Journal of the Institute of Metals, vol. 64, pp. 217-230.
"Aluminum-Copper-Nickel", by Sinizer, D. I., Metals Handbook 1948 Edition, p. 1243.
Dantzig Jonathan A.
Pryor Michael J.
Winter Joseph
Cohn Howard M.
Goldberg Howard N.
Kelmachter Barry L.
Nichols Steven
Olin Corporation
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