Metal treatment – Process of modifying or maintaining internal physical... – With casting or solidifying from melt
Patent
1998-03-06
2000-07-11
Willis, Prince
Metal treatment
Process of modifying or maintaining internal physical...
With casting or solidifying from melt
148696, C22F 104
Patent
active
06086690&
ABSTRACT:
A process of producing an aluminum alloy sheet article of high yield strength and ductility suitable, in particular, for use in manufacturing automotive panels. The process comprises casting a non heat-treatable aluminum alloy to form a cast slab, and subjecting said cast slab to a series of rolling steps to produce a sheet article of final gauge, preferably followed by annealing to cause recrystallization. The rolling steps involve hot and warm rolling the slab to form an intermediate sheet article of intermediate gauge, cooling the intermediate sheet article, and then warm and cold rolling the cooled intermediate sheet to final gauge at a temperature in the range of ambient temperature to 340.degree. C. to form said sheet article. The series of rolling steps is carried out continuously without intermediate coiling or full annealing of the intermediate sheet article. The invention also relates to the alloy sheet article produced by the process.
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patent: 5655593 (1997-08-01), Wyatt-Mair et al.
patent: 5772802 (1998-06-01), Sun et al.
ASM Handbook: Forming and Forging. vol. 14. 9th ed. 1988. p. 13.
Metals Handbook: Properties and Selection: Nonferrous Alloys and Pure Metals. vol. 2. 1979. pp. 28 and 29.
Luce Edward Stanley
Wycliffe Paul
Alcan International Limited
McGuthry-Banks Tima
Willis Prince
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